Order Code RL32665
Navy Force Structure and Shipbuilding Plans:
Background and Issues for Congress
Updated April 28, 2008
Ronald O’Rourke
Specialist in Naval Affairs
Foreign Affairs, Defense, and Trade Division

Navy Force Structure and Shipbuilding Plans:
Background and Issues for Congress
Summary
In February 2008, as part of its proposed FY2009 budget, the Navy submitted
to Congress the FY2009 version of its annual 30-year shipbuilding plan. The 30-year
plan is intended to support the Navy’s goal of achieving and maintaining a 313-ship
fleet. The Navy first presented the 313-ship plan to Congress in February 2006.
Although the FY2009 30-year shipbuilding plan, if implemented, would
generally be adequate to achieve and maintain a fleet of about 313 ships, it does not
include enough ships to fully support certain elements of the 313-ship fleet
consistently over the long run — shortfalls would occur in areas such as amphibious
lift capability and the number of attack submarines. The FY2009 30-year plan,
moreover, includes new assumptions about extended service lives for amphibious
ships and for cruisers and destroyers. If these longer service lives are not achieved,
it could increase the shortfall in amphibious lift capability and create a shortfall in the
number of cruisers and destroyers.
The Navy this year has increased its estimate of the average annual cost to fund
the 30-year plan by about 40% in real (inflation-adjusted) terms. This 40% figure
excludes the cost of 12 replacement ballistic missile submarines (SSBNs) that are
shown in the plan. If the cost of these 12 ships is included in the calculation, the
increase in estimated cost becomes roughly 49% to 57%.
The Navy’s new estimated cost for implementing the 30-year plan is similar to
estimates issued over the last two years by the Congressional Budget Office (CBO).
The Navy downplayed CBO’s estimates in 2007, referring to them in testimony as
“worst-case analysis” or as an “extremely conservative” estimate.
The increase in the Navy’s estimated cost for implementing the plan is so large
that the Navy no longer appears to have a clearly identifiable, announced strategy for
generating the funds needed to implement the 30-year plan, at least not without
significantly reducing funding for other Navy programs or increasing the Navy’s
programmed budget in coming years by billions of dollars per year
Concerns about the Navy’s prospective ability to afford the 30-year shipbuilding
plan, combined with year-to-year changes in Navy shipbuilding plans and significant
cost growth and other problems in building certain new Navy ships, have led to
strong concerns among some Members about the status of Navy shipbuilding and the
potential future size and capabilities of the fleet. As a consequence of these strong
concerns, some Members in hearings this year on the Navy’s proposed FY2009
budget have strongly criticized aspects of the Navy’s shipbuilding plan and indicated
that they are considering making changes to the plan. Some Members in the House,
for example, have indicated that they are considering the option of not procuring a
third DDG-1000 class destroyer in FY20009, as the Navy has requested, and using
the funding programmed for that ship to instead procure other kinds of ships for the
Navy. This report will be updated as events warrant.

Contents
Introduction and Issue for Congress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Proposed 313-Ship Fleet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
FY2009-FY2013 Shipbuilding Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FY2009 30-Year Shipbuilding Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Oversight Issues for Congress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Adequacy of Proposed 313-Ship Fleet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Adequacy of Shipbuilding Plan for Maintaining 313 Ships . . . . . . . . . . . . . 6
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Shortfalls Relative to 313-Ship Goals . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Affordability and Executibility of Shipbuilding Plan . . . . . . . . . . . . . . . . . 12
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
March 2008 CBO Testimony . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
FY2009 Legislative Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Appendix A. Potential For Changing 313-Ship Proposal . . . . . . . . . . . . . . . . . . 15
In General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Amphibious and MPF(F) Ships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SSBNs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Appendix B. Modified Description of Required Number of Aircraft Carriers . . 18
Appendix C. Adequacy of Planned 313-Ship Fleet . . . . . . . . . . . . . . . . . . . . . . 19
Specific Ship Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Amphibious Ships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Attack Submarines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Aircraft Carriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Overall Number of Ships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Appendix D. Affordability of Navy 30-Year Plan in 2006-2007 . . . . . . . . . . . . 22
Appendix E. Size of Navy and Navy Shipbuilding Rate . . . . . . . . . . . . . . . . . . 24
List of Tables
Table 1. Recent Navy Ship Force Structure Proposals . . . . . . . . . . . . . . . . . . . . . 3
Table 2. Navy FY2009-FY2013 Shipbuilding Plan . . . . . . . . . . . . . . . . . . . . . . . 4
Table 3. Navy FY2009 30-Year Shipbuilding Plan . . . . . . . . . . . . . . . . . . . . . . . 5
Table 4. Navy Projection of Future Force Levels . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 5. Projected Shortfall Relative to 313-Ship Force Structure . . . . . . . . . . . . 8
Table 6. Projected Amount of Amphibious Lift . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 7. Average Annual Shipbuilding Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 8. Battle Force Ships Procured or Projected, FY1982-FY2013 . . . . . . . . 24

Navy Force Structure and Shipbuilding
Plans: Background and Issues for Congress
Introduction and Issue for Congress
In February 2008, as part of its proposed FY2009 budget, the Navy submitted
to Congress the FY2009 version of its annual 30-year shipbuilding plan. The 30-year
plan is intended to support the Navy’s goal of achieving and maintaining a 313-ship
fleet. The Navy first presented the 313-ship plan to Congress in February 2006.
Although the FY2009 30-year shipbuilding plan, if implemented, would
generally be adequate to achieve and maintain a fleet of about 313 ships, it does not
include enough ships to fully support certain elements of the 313-ship fleet
consistently over the long run — shortfalls would occur in areas such as amphibious
lift capability and the number of attack submarines. The FY2009 30-year plan,
moreover, includes new assumptions about extended service lives for amphibious
ships and for cruisers and destroyers. If these longer service lives are not achieved,
it could increase the shortfall in amphibious lift capability and create a shortfall in the
number of cruisers and destroyers.
The Navy this year has increased its estimate of the average annual cost to fund
the 30-year plan by about 40% in real (inflation-adjusted) terms. This 40% figure
excludes the cost of 12 replacement ballistic missile submarines (SSBNs) that are
shown in the plan. If the cost of these 12 ships is included in the calculation, the
increase in estimated cost becomes roughly 49% to 57%.
The Navy’s new estimated cost for implementing the 30-year plan is similar to
estimates issued over the last two years by the Congressional Budget Office (CBO).
The Navy downplayed CBO’s estimates in 2007, referring to them in testimony as
“worst-case analysis”1 or as an “extremely conservative” estimate.2
The increase in the Navy’s estimated cost for implementing the plan is so large
that the Navy no longer appears to have a clearly identifiable, announced strategy for
generating the funds needed to implement the 30-year plan, at least not without
significantly reducing funding for other Navy programs or increasing the Navy’s
programmed budget in coming years by billions of dollars per year.
1 Source: Transcript of spoken testimony of Vice Admiral Paul Sullivan before the
Seapower and Expeditionary Forces subcommittee of the House Armed Services Committee
on March 20, 2007.
2 Source: Transcript of spoken testimony of Allison Stiller before the Defense subcommittee
of the House Appropriations Committee on April 25, 2007.

CRS-2
Concerns about the Navy’s prospective ability to afford the 30-year shipbuilding
plan, combined with year-to-year changes in Navy shipbuilding plans and significant
cost growth and other problems in building certain new Navy ships, have led to
strong concerns among some Members about the status of Navy shipbuilding and the
potential future size and capabilities of the fleet. As a consequence of these strong
concerns, some Members in hearings this year on the Navy’s proposed FY2009
budget have strongly criticized aspects of the Navy’s shipbuilding plan and indicated
that they are considering making changes to the plan.3 Some Members in the House,
for example, have indicated that they are considering the option of not procuring a
third DDG-1000 class destroyer in FY20009, as the Navy has requested, and using
the funding programmed for that ship to instead procure other kinds of ships for the
Navy.4
The issue for Congress that is discussed in this report is how to respond to the
Navy’s proposed FY2009 shipbuilding plan. Decisions that Congress makes on this
issue could significantly affect future U.S. military capabilities, Navy funding
requirements, and the Navy shipbuilding industrial base.
Background
Proposed 313-Ship Fleet
Table 1 shows the composition of the Navy’s planned 313-ship fleet, which the
Navy first presented to Congress in February 2006, and compares the 313-ship plan
to other recent Navy ship force structure proposals. The Navy has indicated that it
might adjust certain elements of the 313-ship plan in coming years; for further
discussion, see Appendix A. The Navy in 2007 also modified its description of the
planned number of aircraft carriers within the 313-ship fleet; for further discussion,
see Appendix B.
3 See, for example, the opening remarks of Representative Gene Taylor, the chairman of the
Seapower and Expeditionary Forces subcommittee of the House Armed Services committee,
at a March 14, 2008, hearing before the subcommittee on Navy shipbuilding.
4 For additional discussion, see CRS Report RL32109, Navy DDG-1000 Destroyer
Program: Background, Oversight Issues, and Options for Congress
, by Ronald O’Rourke.

CRS-3
Table 1. Recent Navy Ship Force Structure Proposals
Early-2005 Navy
2002-2004
2006 Navy
proposal for fleet of
2001 QDR
Navy
proposal
plan for
Ship type
260-325 ships
proposal
for 313-
310-ship
for 375-
ship fleet
260-ships
325-ships
Navy
ship Navya
Ballistic missile
submarines (SSBNs)
14
14
14
14
14
Cruise missile
4
4
4
4
2 or 4b
submarines (SSGNs)
Attack submarines
48
37
41
55
55
(SSNs)
Aircraft carriers
11/12c
10
11
12
12
Cruisers, destroyers,
88
67
92
104
116
frigates
Littoral Combat
55
63
82
56
0
Ships (LCSs)
Amphibious ships
31
17
24
37
36
MPF(F) shipsd
12d
14d
20d
0d
0d
Combat logistics
30
24
26
42
34
(resupply) ships
Dedicated mine
0
0
0
26e
16
warfare ships
Otherf
20
10
11
25
25
Total battle force
313/314
260
325
375 310 or 312
ships
Sources: U.S. Navy data.
a. Initial composition. Composition was subsequently modified.
b. The report on the 2001 QDR did not mention a specific figure for SSGNs. The Administration’s
proposed FY2001 Department of Defense (DOD) budget requested funding to support the
conversion of two available Trident SSBNs into SSGNs, and the retirement of two other Trident
SSBNs. Congress, in marking up this request, supported a plan to convert all four available
SSBNs into SSGNs.
c. 11 carriers, and eventually 12 carriers.
d. Today’s 16 Maritime Prepositioning Force (MPF) ships are intended primarily to support Marine
Corps operations ashore, rather than Navy combat operations, and thus are not counted as Navy
battle force ships. The Navy’s planned MPF (Future) ships, however, may be capable of
contributing to Navy combat capabilities (for example, by supporting Navy aircraft operations).
For this reason, MPF(F) ships are counted here as battle force ships.
e. The figure of 26 dedicated mine warfare ships includes 10 ships maintained in a reduced
mobilization status called Mobilization Category B. Ships in this status are not readily
deployable and thus do not count as battle force ships. The 375-ship proposal thus implied
transferring these 10 ships to a higher readiness status.
f. Includes, among other things, command ships and support ships.
FY2009-FY2013 Shipbuilding Plan
Table 2 shows the Navy’s FY2009-FY2013 ship-procurement plan. The plan
includes 47 new construction ships in FY2009-FY2013 — a reduction of 13 ships,
or about 22%, from the 60 new-construction ships that were planned for FY2009-

CRS-4
FY2013 under the Navy’s proposed FY2008 budget. Most of the 13-ship reduction
is due to an 11-ship reduction in the number of Littoral Combat Ships (LCSs)
planned for FY2009-FY2013, which is a consequence of the Navy’s 2007
restructuring of the LCS program.
Table 2. Navy FY2009-FY2013 Shipbuilding Plan
(Ships funded in FY2007 and FY2008 shown for reference)
Total
FY07
FY08
FY09
FY10
FY11
FY12
FY13
FY09-
FY13
CVN-21
1
1
1
SSN-774
1 1 1
1
2
2
2
8
DDG-1000
2a
0a
1
1
1
1
1
5
CG(X)
1
1
2
LCS
0b
1
2
3
3
4
6
18
LPD-17
1
0
LHA(R)
1
0
TAKE
1 0c
2c
2
JCC(X)
1
1
TATF
0
JHSVd
1
1
1
1
1
5
MPF(F) TAKE
0
MPF(F) LHA(R)
1


1
MPF(F) LMSR
1
1
MPF(F) MLP
1
1


1
3
Total
5
4c
7
8
8
12
12
47
Subtotal: ships
5
3
5
5
5
8
6
29
other than LCSs
Source: Navy FY2009 budget submission.
Key: CVN-21 = Ford (CVN-21) class nuclear-powered aircraft carrier. SSN-774 = Virginia (SSN-
774) class nuclear-powered attack submarine. CG(X) = CG(X) class cruiser. DDG-1000 = Zumwalt
(DDG-1000) class destroyer. CG(X) = CG(X) class cruiser. LCS = Littoral Combat Ship. LPD-17
= San Antonio (LPD-17) class amphibious ship. LHA(R) = LHA(R) class amphibious assault ship.
TAKE =Lewis and Clark (TAKE-1) class resupply ship. TAKE-MPF(F) = Modified TAKE intended
for MPF(F) squadron. MPF(F) LHR(A) (also called MPF(F) Aviation) = Modified LHA(R)
intended for MPF(F) squadron. LMSR-MPF(F) = Modified large, medium-speed, roll-on/roll-off
(LMSR) sealift ship intended for MPF(F) squadron. MLP-MPF(F) = Mobile Landing Platform ship
intended for MPF(F) squadron. TATF = oceangoing fleet tug. JCC(X) = Joint command and control
ship. JHSV = Joint High-Speed Vessel transport ship.
a. Two DDG-1000s were procured in FY2007 using split-funding in FY2007 and FY2008.
b. Although two LCSs were originally funded in FY2007, the Navy canceled these ships as part of its
2007 restructuring of the LCS program.
c. Although Congress funded the procurement of one TAKE for Navy use in FY2008, the Navy is
using much of this funding to complete the cost of the TAKE funded in FY2007. (The Navy
is using much of the funding that Congress had provided for the FY2007 TAKE in turn to pay
for cost growth on TAKEs procured in earlier years.) The Navy consequently now records
zero TAKEs as procured in FY2008 (rather than one), and the total number of ships of all kinds
procured in FY2008 as four (rather than five). One of the two TAKEs requested for FY2009
is the same TAKE that Congress originally funded in FY2008.
d. Ships shown are those being procured for Navy use. Additional JHSVs are being procured
separately for Army use and are not shown in the Navy’s shipbuilding plan.

CRS-5
FY2009 30-Year Shipbuilding Plan
Table 3 shows the Navy’s FY2009 30-year ship-procurement plan.
Table 3. Navy FY2009 30-Year Shipbuilding Plan
(including FY2009-FY2013 FYDP)
F
Ship type (see key below)
Y
C
S
L
S
S
S
A
C
M
S
T
V
C
C
S
S
S
W
L
P
u
O
N
S
N
G
B
S
F
F
p
T
N
N
(F)
t
A
L
09
1
2
1
1
1
1
7
10
1
3
1
2
1
8
11
2
3
2
1
8
12
1
1
4
2
2
2
12
13
2
6
2
1
1
12
14
1
6
2
2
2
13
15
2
6
2
1
2
13
16
1
2
6
2
1
12
17
2
6
2
1
1
12
18
2
6
2
1
1
1
13
19
2
4
2
1
1
10
20
2
2
2
2
2
10
21
1
2
2
2
7
22
2
2
1
1
2
2
10
23
1
2
1
2
3
9
24
2
2
1
1
2
2
10
25
1
3
2
1
2
2
11
26
3
2
1
2
2
10
27
3
2
1
6
28
3
2
1
1
7
29
1
3
1
1
1
1
1
9
30
3
2
1
1
1
8
31
3
1
1
1
1
7
32
3
1
2
1
2
1
1
11
33
3
1
1
1
1
7
34
1
3
2
2
1
1
10
35
3
5
1
1
1
11
36
3
5
2
1
11
37
3
5
1
9
38
1
3
5
2
2
13
Source: Report to Congress on Annual Long-Range Plan for Construction of Naval Vessels for FY
2009
.
Key: FY = Fiscal Year; CVN = aircraft carriers; SC = surface combatants (i.e., cruisers and
destroyers); LCS = Littoral Combat Ships; SSN = attack submarines; SSGN = cruise missile
submarines; SSBN = ballistic missile submarines; AWS = amphibious warfare ships; CLF = combat
logistics force (i.e., resupply) ships; MPF(F) = Maritime Prepositioning Force (Future) ships; Supt
= support ships.

CRS-6
Oversight Issues for Congress
Adequacy of Proposed 313-Ship Fleet
Some observers have questioned whether the Navy’s planned 313-ship fleet
includes sufficient numbers of certain ships. Areas of concern include planned
numbers of amphibious ships and attack submarines. For additional discussion of the
issue, see Appendix C.
Adequacy of Shipbuilding Plan for Maintaining 313 Ships
Summary. Table 4 shows the Navy’s projection of future force levels that
would result from fully implementing the Navy’s FY2009 30-year shipbuilding plan.
As shown in the table, the FY2009 30-year shipbuilding plan, if implemented,
would generally be adequate to achieve and maintain a fleet of about 313 ships.
Under the FY2009 30-year plan, the Navy is to reach a total of at least 313 ships in
FY2019 — three years later than under the FY2008 30-year shipbuilding plan. A
primary cause of the three-year delay is the FY2009 plan’s 13-ship reduction in the
total number of ships planned for procurement in FY2009-FY2013. Most of the 13-
ship reduction is due to an 11-ship reduction in the number of Littoral Combat Ships
(LCSs) planned for FY2009-FY2013, which is a consequence of the Navy’s
restructuring of the LCS program in 2007.5
Although the FY2009 30-year shipbuilding plan would generally be adequate
to achieve and maintain a fleet of about 313 ships, it does not include enough ships
to fully support certain elements of the 313-ship fleet consistently over the long run
— shortfalls would occur in areas such as amphibious lift capability and the number
of attack submarines. The Navy’s report on the 30-year plan states: “While in the
main this plan achieves the necessary raw numbers of ships and sustains the
shipbuilding industrial base, there are certain time periods where the ship mix, and
therefore inherent capability of the force, varies from that required as a result of
funding constraints and the timing of legacy fleet service life limits.”6
The FY2009 30-year plan includes new assumptions about extended service
lives for amphibious ships and for cruisers and destroyers. If these longer service
lives are not achieved, it could increase the shortfall in amphibious lift capability and
create a shortfall in the number of cruisers and destroyers.
5 For more on the LCS program, see CRS Report RL33741, Navy Littoral Combat Ship
(LCS) Program: Background, Oversight Issues, and Options for Congress
, by Ronald
O’Rourke.
6 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval
Vessels for FY 2009
, p. 5.

CRS-7
Table 4. Navy Projection of Future Force Levels
(resulting from implementation of 30-year shipbuilding plan shown in Table 3)
F
Ship type (see key below)
Y
C
S
L
S
S
S
A
C
M
M
S
T
V
C
C
S
S
S
W
L
I
P
u
O
N
S
N
G
B
S
F
W
F
p
T
N
N
(F)
t
A
L
09
11
109
2
53
4
14
31
31
14
0
17
286
10
11
111
2
52
4
14
32
30
14
0
17
287
11
11
113
2
52
4
14
34
28
14
0
17
289
12
11
110
3
53
4
14
34
29
14
0
18
290
13
10
107
8
54
4
14
33
29
14
1
19
293
14
10
99
11
51
4
14
33
30
14
1
20
287
15
11
94
14
51
4
14
33
30
14
2
21
288
16
11
92
18
49
4
14
33
30
14
4
22
291
17
11
92
24
50
4
14
33
30
13
6
24
301
18
11
93
30
49
4
14
32
30
13
7
26
309
19
12
93
36
50
4
14
32
30
11
9
24
315
20
12
94
42
48
4
14
32
30
10
9
24
319
21
12
95
48
48
4
14
32
30
7
9
24
323
22
12
94
54
47
4
14
32
30
6
10
24
327
23
12
94
55
47
4
14
32
30
2
10
24
324
24
12
94
55
46
4
14
32
30
1
10
24
322
25
12
93
55
45
4
14
33
30
0
10
24
320
26
12
91
55
44
2
14
33
30
0
10
24
315
27
12
91
55
43
1
13
33
30
0
10
24
312
28
12
89
55
41
0
13
33
30
0
10
24
307
29
12
91
55
41
0
13
33
30
0
10
24
309
30
12
94
55
42
0
12
33
30
0
10
24
312
31
12
96
55
44
0
12
33
30
0
10
24
316
32
12
99
55
45
0
12
33
30
0
10
24
320
33
12
101
55
47
0
12
33
30
0
10
24
324
34
12
100
55
49
0
12
33
30
0
10
24
325
35
12
98
55
50
0
12
33
30
0
10
24
324
36
12
95
55
52
0
12
33
30
0
10
24
323
37
12
94
55
53
0
12
33
30
0
10
24
323
38
12
94
55
53
0
12
32
30
0
10
24
322
Source: Report to Congress on Annual Long-Range Plan for Construction of Naval Vessels for FY
2009
.
Key: FY = Fiscal Year; CVN = aircraft carriers; SC = surface combatants (i.e., cruisers and
destroyers); LCS = Littoral Combat Ships; SSN = attack submarines; SSGN = cruise missile
submarines; SSBN = ballistic missile submarines; AWS = amphibious warfare ships; CLF = combat
logistics force (i.e., resupply) ships; MIW = mine warfare ships; MPF(F) = Maritime Prepositioning
Force (Future) ships; Supt = support ships.
Shortfalls Relative to 313-Ship Goals. The FY2009 version of the 30-
year shipbuilding plan, like the FY2008 and FY2007 versions, does not include
enough ships to fully support all elements of the planned 313-ship force structure
over the long run. As shown in Table 5 below, however, the total projected shortfall
in the 30-year plan relative to the 313-ship force structure has been reduced from

CRS-8
about 39 ships two years ago to 15 ships today. The reduction in the shortfall from
about 39 ships two years ago to about 26 ships one year ago was due primarily to a
Navy decision to insert additional destroyers into the final years of the FY2008 plan.
The reduction in the shortfall from about 26 ships a year ago to 15 ships today is due
primarily to a new assumption incorporated into the FY2009 plan to extend the
service lives of the Navy’s 62 Arleigh Burke (DDG-51) class Aegis destroyers by
five years (from 35 years to 40).
Table 5. Projected Shortfall Relative to 313-Ship Force Structure
Projected shortfall by ship
FY2007
FY2008
FY2009 (FY09-
type, in numbers of ships,
(FY07-FY36)
(FY08-FY37)
FY38) plan of
under...
plan of
plan of
Feb. 2008
Feb. 2006
Feb. 2007
Amphibious ships
1
1
0a
Attack submarines (SSNs)
8
8
7
Cruise missile submarines
4
4
4
(SSGNs)
Ballistic missile submarines
0
0
2b
(SSBNs)
Cruisers and destroyers
~26
~10
0
MPF(F) ships
0
0
2
Total projected shortfall
~39
~26
15
Source: CRS analysis of Navy data.
a. Although the FY2009 30-year shipbuilding plan would support a force of 32 or 33
amphibious ships, as opposed to 31 called for in the 313-ship plan, the 32- or 33-ship
force would include nine LPD-17 class ships, as opposed to the 10 called for in the
313-ship plan. The Marine Corps states that fully meeting the requirement for an
amphibious force capable of lifting the assault echelons of 2.0 Marine Expeditionary
Brigades (MEBs) would require a 33-ship amphibious force that includes 11 LPD-17s.
b. Although the FY2009 30-year shipbuilding plan includes 12 replacement SSBNs rather
than the 14 called for in the 313-ship plan, the Navy has testified that the 12 new
SSBNs would be sufficient to perform the missions of today’s 14-ship SSBN force
because the 12 new ships would be built with life-of-the-ship nuclear fuel cores and
consequently would not require mid-life refuelings. The Navy states that the need for
today’s SSBNs to be taken out of service for some time to receive mid-life refuelings
is what drives the need for a 13th and 14th SSBN.
Amphibious Ships. Although the FY2009 30-year shipbuilding plan would
support a force of 32 or 33 amphibious ships, as opposed to a total of 31 called for
in the 313-ship plan, this 32- or 33-ship force would include 9 San Antonio (LPD-17)

CRS-9
class amphibious ships, as opposed to the 10 called for in the 313-ship plan.7 The
Navy’s report on the FY2009 30-year shipbuilding plan states:
While the mix of the 33 [amphibious] ships reflected in this plan differs slightly
from the USMC requirement, it represents acceptable risk considering the
amphibious ships planned for decommissioning are not scheduled for
dismantling or sinking to permit mobilization at a later date if required. The
decommissioning ships are being replaced with newer more capable LPD 17 and
LHA 6 class ships. The Navy will maintain the 33-ship requirement for
amphibious shipping through the FYDP while these new ships are integrated into
the battleforce. Consequently, there will be no amphibious ship capability gaps
through at least FY 2019.8
The Marine Corps states that lifting the assault echelons of 2.0 Marine
Expeditionary Brigades (MEBs) — a requirement that reflects Marine Corps
responsibilities under U.S. war plans — would require a 33-ship amphibious force
that includes 11 LPD-17s.9 Table 6 shows the Marine Corps’ calculation of the
amount of amphibious lift, relative to the 2.0 MEB lift goal, resulting from the 32-
or 33-ship amphibious force that is projected in the Navy’s FY2009 30-year
shipbuilding plan. The table presents the five different elements of amphibious lift.
In the table, a figure of 1.0 in a cell would meet 100% of the 2.0 MEB lift goal for
that lift element, a figure of 1.5 would exceed by 50% the 2.0 MEB lift goal for that
element, and a figure of 0.75 would meet 75% of the 2.0 MEB lift goal for that
element. As can be seen in the table, the Marine Corps projects exceeding the 2.0
MEB lift goal for three of the lift elements (troops, space for cargo, and spaces for
LCAC landing craft) and falling short in a fourth (space for vehicles). (The Marine
Corps projects that the 32- or 33-ship amphibious force would roughly meet the 2.0
MEB lift requirement for the remaining lift element — spaces for vertical takeoff and
landing [VTOL] aircraft.) The projected shortfall in space for vehicles, the Marine
Corps says, would mean that the 32- or 33-ship amphibious force would not be able,
by itself, to land the assault echelons of 2.0 fully equipped MEBs.
7 Congress, as part of its action on the FY2008 defense budget, provided $50 million in
advance procurement funding for a 10th LPD-17 to be procured in a fiscal year after
FY2008. The FY2009 shipbuilding plan, like the FY2008 shipbuilding plan, does not
include a 10th LPD-17, and calls for ending LPD-17 procurement with the ninth ship, which
was procured in FY2008. A 10th LPD-17, at a cost of $1,700 million, is the number-two
item on the Navy’s FY2009 Unfunded Requirements List (URL) and the first item presented
in the Marine Corps’ FY2009 URL.
8 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval
Vessels for FY 2009
, p. A-3.
9 The 33-ship force that would fully meet the 2.0 MEB lift requirement includes 11 large-
deck amphibious assault ships (LHAs/LHDs), 11 LPD-17s, and 11 LSD-41/49 class
amphibious ships.

CRS-10
Table 6. Projected Amount of Amphibious Lift
(Relative to 2.0 MEB lift requirement, Resulting From Amphibious Force
Supported By FY2009 Navy 30-Year Shipbuilding Plan)
2008
2009
2010
2015
2020
2025
2030
2035
Troops
1.46
1.35
1.38
1.45
1.42
1.35
1.49
1.59
Vehicle (sq. ft.)
0.77
0.75
0.80
0.90
0.88
0.93
1.05
1.17
Cargo (cu. ft.)
2.02
1.90
1.92
2.07
2.04
1.95
2.28
2.49
VTOL aircraft
1.02
0.93
0.94
1.07
1.06
0.97
1.18
1.31
LCACs
1.81
1.75
1.79
1.79
1.75
1.77
1.65
1.50
Source: U.S. Marine Corps data provided to CRS, March 11, 2008. Calculations are based
on 15 operational ships per MEB. A figure of 1.0 in a cell would meet 100% of the 2.0
MEB lift goal for that lift element; a figure of 1.5 would exceed by 50% the goal for that
element; and a figure of 0.75 would meet 75% of the goal for that element.
If the Navy cannot extend the service lives of amphibious ships as much as
assumed in the FY2009 30-year shipbuilding plan, then the amount of amphibious
lift capability in future years could be less than that shown in Table 6.
Attack Submarines (SSNs). Although the 313-ship plan calls for a total of
48 SSNs, the 30-year shipbuilding plan does not include enough SSNs to maintain
a force of 48 boats consistently over the long run. The Navy projects that the SSN
force will drop below 48 boats in 2022, reach a minimum of 41 boats (14.6% less
than the required figure of 48) in FY2028 and FY2029, and remain below 48 boats
through 2033. The Navy has completed a study on various options for mitigating the
projected SSN shortfall. One of these options is to procure one or more additional
SSNs in the period FY2008-FY2011. The issue is discussed in more detail in another
CRS report.10
Converted Trident Submarines (SSGNs). Although the 313-ship plan
calls for four SSGNs, the FY2009 30-year shipbuilding plan includes no
replacements for the four current SSGNs, which the Navy projects will reach
retirement age and leave service in FY2026-FY2028. The Navy’s report on the 30-
year shipbuilding plan states:
Plans for recapitalization [i.e., replacement] of the OHIO class submarines
that have been converted to SSGN have been deferred until their warfighting
utility can be assessed. Should their replacement be required, it will be necessary
to integrate their procurement with other ship and submarine recapitalization
efforts planned for the post-FY 2020 period.11
Ballistic Missile Submarines (SSBNs). Although the FY2009 30-year
shipbuilding plan includes 12 replacement SSBNs rather than the 14 called for in the
10 CRS Report RL32418, Navy Attack Submarine Force-Level Goal and Procurement Rate:
Background and Issues for Congress
, by Ronald O’Rourke.
11 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval
Vessels for FY 2009
, p. 8.

CRS-11
313-ship plan, the Navy has testified that the 12 new SSBNs would be sufficient to
perform the missions of today’s 14-ship SSBN force because the 12 new ships would
be built with life-of-the-ship nuclear fuel cores and consequently would not require
mid-life refuelings. The Navy states that the need for today’s SSBNs to be taken out
of service for some time to receive mid-life refuelings is what drives the need for a
13th and 14th SSBN.
Cruisers and Destroyers. Although the FY2009 30-year plan assumes a 5-
year service life extension for the Navy’s 62 DDG-51s, a Navy official was quoted
after the FY2009 30-year plan was released as stating that the Navy has not yet
officially approved the idea of extending the service lives of those ships.12 One
potential oversight issue for Congress is why the 30-year plan assumed a 5-year
service life extension for the DDG-51s if the Navy had not yet officially approved the
idea. If the Navy approves the idea, a second potential oversight issue for Congress
is whether the Navy will actually be able to extend the service lives of the DDG-51s
and operate them in a cost-effective manner for 40 years, given the wear and tear that
might accrue on the ships in coming years, as well as the DDG-51 design’s space,
weight, and electrical-power capacities. If a five-year service life extension for the
DDG-51s proves infeasible or not cost-effective, a shortfall in cruisers and destroyers
similar to that shown in the FY2008 column in Table 5 might reappear.
MPF(F) Ships. The projected two-ship shortfall in MPF(F) ships is due to a
decision to drop two Lewis and Clark (TAKE-1) class dry cargo ships from the
shipbuilding plan. These two ships were previously planned for procurement in
FY2010 and FY2011. Navy officials have stated the two ships were removed from
the plan pending the completion of a study on the MPF(F) concept of operations, and
that the two ships might be put back into the shipbuilding plan next year, following
the completion of this study.13
Aircraft Carriers. As mentioned earlier, the Navy projects that the carrier
force will drop from the current figure of 11 ships to 10 ships for a 33-month period
between the scheduled retirement of the carrier Enterprise (CVN-65) in November
2012 and scheduled the entry into service of its replacement, the carrier Gerald R.
Ford (CVN-78), in September 2015. The Navy projects that the force will increase
to 12 carriers starting in FY2019, when CVN-79 is commissioned.
10 USC §5062 requires the Navy to maintain an aircraft carrier force of at least
11 operational ships. As it did for FY2008, the Navy for FY2009 is requesting a
legislative waiver from Congress that would permit the Navy to reduce the carrier
force to 10 operational ships for the 33-month between the retirement of the
Enterprise and the entry into service of the Ford.
12 Zachary M. Peterson, “Destroyer Extension Part of 313-Ship Plan,” NavyTimes.com,
February 11, 2008.
13 See, for example, U.S. Navy, Report to Congress on Annual Long-Range Plan for
Construction of Naval Vessels for FY 2009
, p. 9.

CRS-12
Affordability and Executibility of Shipbuilding Plan
Overview. One of the most significant features in the FY2009 30-year
shipbuilding plan, compared to the FY2008 30-year plan, is an apparent increase of
roughly 40% in real (inflation-adjusted) terms in the Navy’s estimated average annual
cost to implement the 30-year plan. The Navy last year estimated that the FY2008
30-year plan would cost an average of $14.4 billion per year in FY2007 dollars. The
Navy’s estimated cost for the FY2009 30-year appears to be roughly $20.1 billion per
year in FY2007 dollars, or roughly 40% more. The Navy’s estimate for the first 12
years of the plan (FY2009-FY2020) has increased to $15.8 billion per year in
FY2007 dollars — an increase of about 9.7%. Its estimate for the final 18 years of the
plan (FY2021-FY2038) appears to have increased to about $22.9 billion per year in
FY2007 dollars — an increase of roughly 59%.14 An average of $15.8 billion per
year for 12 years and $22.9 billion per year for 18 years works out to a 30-year
average of about $20.1 billion per year
This roughly 40% real increase is not due to significant changes in the
composition of the 30-year plan, because the types and quantities of ships to be
procured under FY2009 30-year plan are generally the same as those in the FY2008
30-year plan.15
As discussed further below, the Navy’s report on the FY2009 30-year plan states
that the Navy’s cost estimate excludes the cost of the 12 replacement ballistic missile
submarines (SSBNs) that are shown in the plan. Depending on the cost one assumes
for these 12 SSBNs, including their cost might increase the roughly 40% figure in the
previous paragraph to roughly 49% to 57%.16
In 2007, the Congressional Budget Office (CBO) estimated that last year’s
version of the 30-year plan would cost roughly 35% more per year to implement than
the Navy was estimating. The Navy in 2007 downplayed CBO’s higher cost
estimate, referring to it in testimony as “worst-case analysis”17 or as an “extremely
14 Although the Navy’s report on the 30-year plan does not state an estimated average annual
cost for the 18 later years of the plan, visual inspection of a graph in the report (Figure 1)
suggests that the average figure for this period is roughly $22.9 billion a year in FY2007
dollars.
15 The FY2009-FY2038 plan includes 296 ships, or about 1.7% more than the 291 ships in
the FY2008-FY2037 plan. The types of ships procured under the two plans are essentially
the same, and the total numbers of each type being procured are in most cases similar.
16 Using Navy and Congressional Budget Office (CBO) estimates for the cost of these
SSBNs as presented in CBO testimony to this subcommittee on July 24, 2007, including the
costs of 12 replacement SSBNs could increase the estimated cost of the 30-year plan by
about $1.3 billion per year (using the Navy’s estimate) to about $2.5 billion a year (using
CBO’s estimate).
17 Source: Transcript of spoken testimony of Vice Admiral Paul Sullivan before the
Seapower and Expeditionary Forces subcommittee of the House Armed Services Committee
on March 20, 2007.

CRS-13
conservative” estimate.18 The Navy’s new estimated cost for the FY2009 30-year
plan, however, is now comparable to CBO’s estimates for last year’s plan.
In 2006 and 2007, the Navy had a clearly identifiable strategy for achieving the
shipbuilding budget that the Navy then estimated would be needed to implement the
30-year shipbuilding plan. CRS and CBO discussed in reports and testimony in 2006
and 2007 how the Navy’s strategy for executing the shipbuilding plan depended on
a series of five assumptions concerning the future size and composition of the Navy’s
budget and the costs of future Navy ships. As noted by both CRS and CBO in 2006
and 2007, all five of these assumptions could be viewed as risk items for the plan,
because there were grounds for questioning whether each of them would be borne
out. (For additional discussion, see Appendix D.)
The new increase in the Navy’s estimated cost for implementing the 30-year
plan is so large that the Navy no longer appears to have a clearly identifiable,
announced strategy for generating the funds needed to implement the 30-year plan,
at least not without significantly reducing funding for other Navy programs or
increasing the Navy’s programmed budget in coming years by billions of dollars per
year.
March 2008 CBO Testimony. CBO testified in March 2008 that the Navy’s
FY2009 30-year plan “appears to increase the Navy’s estimate of the costs to
implement the plan by about 50 percent,”19 and that its analysis indicates the
following:
— Executing the Navy’s most recent 30-year shipbuilding plan will cost an
average of about $25 billion a year (in 2009 dollars), or double the $12.6 billion
a year the Navy has spent, on average, since 2003.
— The Navy appears to have substantially revised its estimate of the cost of
implementing the 30-year shipbuilding plan, bringing its overall estimate into
general alignment with CBO’s estimates of the past three years.
— CBO’s estimates of the Navy’s shipbuilding program through the 2009-
2013 Future Years Defense Program (FYDP) are about 30 percent higher than
the Navy’s estimates. In particular, CBO estimates that the DDG-1000 guided-
missile destroyer and the CG(X) future cruiser would probably cost significantly
more than the Navy currently estimates.
— For the 2009 — 2020 period, which the Navy’s plan describes as the “near
term,” CBO’s estimates for new-ship construction alone are about 15 percent
higher than the Navy’s.
18 Source: Transcript of spoken testimony of Allison Stiller before the Defense
subcommittee of the House Appropriations Committee on April 25, 2007.
19 Statement of Eric J. Labs, Senior Analyst, [on] Current and Projected Navy Shipbuilding
Programs, before the Subcommittee on Seapower and Expeditionary Forces, Committee on
Armed Services, U.S. House of Representatives, March 14, 2008, p. 2.

CRS-14
— The Navy’s cost estimates for the 2009 shipbuilding plan beyond 2020,
which the Navy’s plan describes as the “far term,” appear higher than CBO’s by
about 20 percent. CBO cannot explain the difference between its estimates and
the Navy’s because detailed information from the Navy explaining the basis of
its cost estimates is not yet available.20
Table 7, which is taken from CBO’s March 2008 testimony, summarizes Navy
and CBO estimates of the cost to implement the 30-year shipbuilding plan.
Table 7. Average Annual Shipbuilding Costs
(from CBO March 2008 testimony; figures in billions of constant FY2009 dollars)
New-ship construction
New-ship construction (including
SSBNs), plus:

Excluding
Including
Nuclear
Nuclear refuelings, LCS
SSBNs
SSBNs
refuelings
mission modules, and
surface combat-ant
modernization

Actual Navy
11.1
11.1
12.4
12.6
spending,
FY03-FY08

Average annual cost as estimated by:
Navy
22.4
24.0a
25.1b
25.9b
CBO
20.4
23.2
24.4
25.2
Memorandum: Navy’s estimate average annual cost in 2006 and 2007
n.a.
16.1
17.2b
18.0b
Source: Table 3 from Statement of Eric J. Labs, Senior Analyst, [on] Current and Projected
Navy Shipbuilding Programs, before the Subcommittee on Seapower and Expeditionary
Forces, Committee on Armed Services, U.S. House of Representatives, March 14, 2008, p.
13.
a. The Navy’s estimate for new-ship construction plus the Navy’s cost target for SSBNs
under the FY2007 and FY2008 shipbuilding plans.
b. The Navy’s estimate for new-ship construction and cost target for SSBNs plus CBO’s
estimates for the additional costs.
FY2009 Legislative Activity
The Navy’s FY2009 shipbuilding plans were submitted in early February, as
part of the Navy’s FY2009 budget submission.
20 Ibid, p. 1.

CRS-15
Appendix A. Potential For Changing
313-Ship Proposal
In General
A May 2006 Navy planning document stated that the
Navy will continue to refine capability and capacity requirements in POM-08
[the Program Objective Memorandum for the FY2008 budget] by reviewing the
force mix against emerging and evolving threats. [The] Navy will conduct an
analytic review and analysis of potential alternative capacity and capability
mixes that will support Joint Force requirements and enable stable shipbuilding
and procurement accounts.21
An April 2008 press report stated that:
Chief of Naval Operations Adm. Gary Roughead has ordered internal
reviews into the Navy’s long-term basing requirements and strategies, as well as
needs for personnel, ships and aircraft, a Navy spokesman said.
The reviews, which probably will not be made public, will produce an
“internal working document” that will help Roughead and other top Navy
commanders plan into the coming decades, Navy spokesman Cmdr. Jeff Davis
said. The findings probably will be incorporated into future quadrennial defense
reviews, shipbuilding plans and budget requests, Davis said.
Roughead mentioned his review of the Navy’s basing requirements and
strategy — what he called a “force rating” and Davis called a “strategic
lay-down” — in response to questions from a House panel in March....
Davis described the four other reviews Roughead requested when he took
over:
* Force structure, including the numbers of aircraft and ships.
* The life span of those aircraft and ships.
* The Navy’s personnel requirements, including end strength and skill sets.
* Infrastructure requirements, including details about the physical state of
the Navy’s bases.22
21 U.S. Department of the Navy, Navy Strategic Plan In Support of Program Objective
Memorandum 08
, May 2006, p. 11.
22 Philip Ewing, “CNO Orders Far-Reaching Base, Force Reviews,” NavyTimes.com, April
21, 2008.

CRS-16
Amphibious and MPF(F) Ships
The Navy’s February 2007 report on the FY2008 30-year shipbuilding plan
stated:
Future combat operations may require us to revisit many of the decisions
reflected in this report, including those associated with amphibious lift. As the
Navy embarks on production of the Maritime Prepositioning Force in this FYDP,
the Navy will continue to analyze the utility of these ships in terms of their
contribution to, and ability to substitute for, the assault echelon forces in the
Navy’s future battle-force inventory. The current force represents the best
balance between these forces available today. However, changing world events
and resulting operational risk associated with the various force structure elements
that make up these two components of overall lift will be analyzed to ensure the
Navy is not taking excessive risk in lift capability and capacity. While there
needs to be a balance between expeditionary and prepositioning ships for
meeting the overall lift requirement, future reports may adjust the level of
support in one or both of these solutions. Any adjustments made in these
capabilities will have to be accommodated in light of the resources available and
could require the Navy to commit additional funding to this effort in order to
support the overall balance of our shipbuilding program.23
The Navy’s February 2008 report on the FY2009 30-year shipbuilding plan
stated that the Department of the Navy “is reviewing options to increase assault
echelon amphibious lift to 33 ships to meet USMC requirements.”24 The report also
states:
The Commandant of the Marine Corps has determined that a minimum of
33 amphibious ships is necessary to support their assault echelon lift
requirements; specifically, he has requested a force of 11 aviation capable
amphibious ships, 11 LPDs and 11 LSDs. The Chief of Naval Operations
supports the Commandant’s determination.25
SSBNs
The Navy has testified in 2007 and 208 that its next-generation ballistic missile
submarines (SSBNs) are to be fueled with a nuclear fuel core sufficient for the ships’
entire expected service lives. Consequently, the Navy has testified, these SSBNs, in
contrast to today’s SSBNs, would not need a mid-life nuclear refueling. As a result,
the Navy testified, the Navy in the future may be able to meet its requirements for
SSBN deployments with a force of 12 SSBNs rather than 14.26 This testimony
23 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval
Vessels for FY 2008
, p. 5.
24 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval
Vessels for FY 2009
, p. 5.
25 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval
Vessels for FY 2009
, p. A-3.
26 Source: Transcripts of Navy testimony to Senate Armed Services Committee, March 29,
(continued...)

CRS-17
suggests that the Navy might at some point change the required number of SSBNs
in the 313-ship plan from 14 to 12. The Navy’s February 2008 report on the FY2009
shipbuilding plan continues to state that the 313-ship force-structure includes 14
SSBNs, but the FY2009 30-year shipbuilding plan includes 12 SSBNs rather than 14.
26 (...continued)
2007, and to Seapower and Expeditionary Forces subcommittee of House Armed Services
Committee, March 14, 2008.

CRS-18
Appendix B. Modified Description of Required
Number of Aircraft Carriers
In late-March 2007, the Navy modified its description of the number of aircraft
carriers in the 313-ship proposal. From February 2006 through early March 2007,
the Navy described the 313-ship proposal as one centered on, among other things, 11
aircraft carriers.27 In late March 2007, the Navy modified its description of the 313-
ship proposal to one centered on, among other things, 11, and eventually 12, aircraft
carriers, the modification being the addition of the phrase “and eventually 12.”28
The Navy’s modification of its description of the number of aircraft carriers in
the 313-ship proposal occurred about a week after the decommissioning of the
aircraft carrier John F. Kennedy (CV-67), which occurred on March 23, 2007. The
decommissioning of the Kennedy reduced the Navy’s carrier force from 12 ships to
11. The Navy had proposed decommissioning the Kennedy in its FY2006 and
FY2007 budgets, and opponents of the Kennedy’s retirement had resisted the
proposal. If the Navy, prior to the Kennedy’s decommissioning, had described the
313-ship fleet as one centered on, among other things, 11, and eventually 12, aircraft
carriers, opponents of the Kennedy’s decommissioning might have cited the
“eventually 12” part as evidence that the Navy really requires 12 carriers, not just
11.29
The Navy’s February 2008 report on the FY2009 30-year shipbuilding plan
states that the 313-ship plan includes 11 carriers and does not include a reference to
“eventually 12” carriers, but the long-range force projection in the report continues
to show a total of 12 carriers in FY2019 and subsequent years.
27 See, for example, Navy testimony before the House Armed Services Committee on March
1, 2007 (transcript of hearing).
28 See, for example, Navy testimony before the Defense subcommittee of the Senate
Appropriations Committee on March 28, 2007, and before the Senate Armed Services
Committee on March 29, 2007 (transcripts of hearings).
29 For additional discussion of the debate over the Kennedy’s retirement, see CRS Report
RL32731, Navy Aircraft Carriers: Retirement of USS John F. Kennedy — Issues and
Options for Congress
, by Ronald O’Rourke.

CRS-19
Appendix C. Adequacy of Planned 313-Ship Fleet
Specific Ship Categories
Amphibious Ships. Some observers have questioned whether the Navy’s
proposed total of 31 amphibious ships within the 313-ship fleet will be sufficient.
The Marine Corps has stated that a total of 33, including 11 San Antonio (LPD-17)
class ships, would be needed to meet the Marine Corps’ requirement for having a
force capable of lifting the assault echelons of 2.0 Marine Expeditionary Brigades
(MEBs). The issue is discussed in more detail in another CRS report.30
Attack Submarines. Some observers have questioned whether the Navy’s
proposed total of 48 attack submarines within the 313-ship plan will be sufficient,
and have suggested that a total of 55 or more would be more appropriate, particularly
in light of requests for forward-deployed attack submarines from U.S. regional
military commanders, and the modernization of China’s naval forces, including its
submarine force. The issue is discussed in more detail other CRS reports.31
Aircraft Carriers. Some observers have questioned whether the Navy’s
proposed total of 11 aircraft carriers through FY2018 will be sufficient, particularly
in light of past Navy plans that have called for 12 carriers, the Navy’s testimony in
2007 that the 313-ship proposal includes a requirement for an eventual total of 12
carriers, and Navy plans to increase the carrier force back to 12 ships in 2019 and
maintain it at that level thereafter. The latter two points, they argue, suggest that the
Navy would actually prefer to have 12 carriers between now and FY2019, rather than
11.
Observers have expressed concern that the current carrier force of 11 ships will
temporarily decline further, to 10 ships, during the 33-month period between the
scheduled retirement of the carrier Enterprise (CVN-65) in November 2012 and
scheduled the entry into service of its replacement, the carrier Gerald R. Ford (CVN-
78), in September 2015. Even if an 11-carrier force is adequate, these observers
argue, a 10-carrier force might not be, even if only for a 33-month period.
10 USC §5062 requires the Navy to maintain an aircraft carrier force of at least
11 operational ships. The Navy for FY2009 is requesting a legislative waiver from
Congress that would permit the Navy to reduce the carrier force to 10 operational
ships for the 33-month between the retirement of the Enterprise and the entry into
service of the Ford. The Navy made the same request as part of its FY2008 budget
submission; Congress did not act on the request in FY2008.
30 CRS Report RL32513, Navy-Marine Corps Amphibious and Maritime Prepositioning
Ship Programs: Background and Oversight Issues for Congress
, by Ronald O’Rourke.
31 CRS Report RL32418, Navy Attack Submarine Force-Level Goal and Procurement Rate:
Background and Issues for Congress
, by Ronald O’Rourke; and CRS Report RL33153,
China Naval Modernization: Implications for U.S. Navy Capabilities — Background and
Issues for Congress
, by Ronald O’Rourke.

CRS-20
Overall Number of Ships
Some observers have questioned whether the overall planned total of 313 ships
would be adequate, particularly in light of Navy plans in recent decades for larger
total numbers of ships.
One possible method for assessing the appropriateness of the total number of
ships being proposed by the Navy is to compare that number to historical figures for
total fleet size. Historical figures for total fleet size, however, might not be a reliable
yardstick for assessing the appropriateness of the Navy’s proposed 313-ship fleet,
particularly if the historical figures are more than a few years old, because the
missions to be performed by the Navy, the mix of ships that make up the Navy, and
the technologies that are available to Navy ships for performing missions all change
over time.
The Navy, for example, reached a late-Cold War peak of 568 battle force ships
at the end of FY1987,32 and as of February 14, 2008, had declined to a total of 279
battle force ships. The FY1987 fleet, however, was intended to meet a set of mission
requirements that focused on countering Soviet naval forces at sea during a potential
multi-theater NATO-Warsaw Pact conflict, while the February 2008 fleet is intended
to meet a considerably different set of mission requirements centered on influencing
events ashore by countering both land- and sea-based military forces of potential
regional threats other than Russia, including non-state terrorist organizations. In
addition, the Navy of FY1987 differed substantially from the February 2008 fleet in
areas such as profusion of precision-guided air-delivered weapons, numbers of
Tomahawk-capable ships, and sophistication of C4ISR systems.33
In coming years, Navy missions may shift again, to include, as a possible
example, a greater emphasis on being able to counter improved Chinese maritime
military capabilities.34 In addition, the capabilities of Navy ships will likely have
changed further by that time due to developments such as more comprehensive
32 Some publications, such as those of the American Shipbuilding Association, have stated
that the Navy reached a peak of 594 ships at the end of FY1987. This figure, however, is
the total number of active ships in the fleet, which is not the same as the total number of
battle force ships. The battle force ships figure is the number used in government
discussions of the size of the Navy. In recent years, the total number of active ships has
been larger than the total number of battle force ships. For example, the Naval Historical
Center states that as of November 16, 2001, the Navy included a total of 337 active ships,
while the Navy states that as of November 19, 2001, the Navy included a total of 317 battle
force ships. Comparing the total number of active ships in one year to the total number of
battle force ships in another year is thus an apple-to-oranges comparison that in this case
overstates the decline since FY1987 in the number of ships in the Navy. As a general rule
to avoid potential statistical distortions, comparisons of the number of ships in the Navy
over time should use, whenever possible, a single counting method.
33 C4ISR stands for command and control, communications, computers, intelligence,
surveillance, and reconnaissance.
34 For a discussion, see CRS Report RL33153, China Naval Modernization: Implications
for U.S. Navy Capabilities — Background and Issues for Congress
, by Ronald O’Rourke.

CRS-21
implementation of networking technology and increased use of ship-based unmanned
vehicles.
The 568-ship fleet of FY1987 may or may not have been capable of performing
its stated missions; the 279-ship fleet of February 2008 may or nor may not have been
capable of performing its stated missions; and a fleet years from now with a certain
number of ships may or may not be capable of performing its stated missions. Given
changes over time in mission requirements, ship mixes, and technologies, however,
these three issues are to a substantial degree independent of one another.
For similar reasons, trends over time in the total number of ships in the Navy are
not necessarily a reliable indicator of the direction of change in the fleet’s ability to
perform its stated missions. An increasing number of ships in the fleet might not
necessarily mean that the fleet’s ability to perform its stated missions is increasing,
because the fleet’s mission requirements might be increasing more rapidly than ship
numbers and average ship capability. Similarly, a decreasing number of ships in the
fleet might not necessarily mean that the fleet’s ability to perform stated missions is
decreasing, because the fleet’s mission requirements might be declining more rapidly
than numbers of ships, or because average ship capability and the percentage of time
that ships are in deployed locations might be increasing quickly enough to more than
offset reductions in total ship numbers.
Previous Navy force structure plans, such as those shown in Table 1, might
provide some insight into the potential adequacy of a proposed new force-structure
plan, but changes over time in mission requirements, technologies available to ships
for performing missions, and other force-planning factors suggest that some caution
should be applied in using past force structure plans for this purpose, particularly if
those past force structure plans are more than a few years old. The Reagan-era plan
for a 600-ship Navy, for example, was designed for a Cold War set of missions
focusing on countering Soviet naval forces at sea, which is not an appropriate basis
for planning the Navy today.35
35 Navy force structure plans that predate those shown in Table 1 include the Reagan-era
600-ship plan of the 1980s, the Base Force fleet of more than 400 ships planned during the
final two years of the George H. W. Bush Administration, the 346-ship fleet from the
Clinton Administration’s 1993 Bottom-Up Review (or BUR, sometimes also called Base
Force II), and the 310-ship fleet of the Clinton Administration’s 1997 QDR. The table
below summarizes some key features of these plans.
Features of Recent Navy Force Structure Plans
Plan
600-ship
Base Force
1993 BUR
1997 QDR
Total ships
~600
~450/416a
346
~305/310b
Attack submarines
100
80/~55c
45-55
50/55d
Aircraft carriers
15e
12
11+1f
11+1f
Surface combatants
242/228g
~150
~124
116
Amphibious ships
~75h
51i
36i
36i
Source: Prepared by CRS based on DOD and U.S. Navy data.
a. Commonly referred to as 450-ship plan, but called for decreasing to 416 ships by end of
(continued...)

CRS-22
Appendix D. Affordability of Navy 30-Year Plan in
2006-2007
In 2006 and 2007, the Navy’s position was that for its shipbuilding plan to be
affordable and executable, five things needed to happen:
! The Navy’s overall budget needed to remain more or less flat (not
decline) in real (inflation-adjusted) terms.
! Navy Operation and Maintenance (O&M) spending needed to
remain flat (not grow) in real terms.
! Navy Military Personnel (MilPer) spending needed to remain flat
(not grow) in real terms.
! Navy research and development (R&D) spending needed to decrease
from recent levels and remain at the decreased level over the long
run.
! Navy ships needed to be built at the Navy’s currently estimated
prices.
The Navy said that the first four things were needed for the Navy to be able to
increase the shipbuilding budget from an average in FY2002-FY2007 of about $9.6
billion per year in FY2008 dollars to a long-term average of about $15.4 billion per
year in FY2008 dollars — an increase of about 60% in real terms.36 The fifth thing
on the list, the Navy said, was needed if all the ships in the shipbuilding plan were
to be affordable within an average annual shipbuilding budget of $15.4 billion in
FY2008 dollars.
35 (...continued)
FY1999.
b. Original total of about 305 ships was increased to about 310 due to increase in number
of attack submarines to 55 from 50.
c. Plan originally included 80 attack submarines, but this was later reduced to about 55.
d. Plan originally included 50 attack submarines but this was later increased to 55.
e. Plus one additional aircraft carrier in the service life extension program (SLEP).
f. Eleven active carriers plus one operational reserve carrier.
g. Plan originally included 242 surface combatants but this was later reduced to 228.
h. Number needed to lift assault echelons of one Marine Expeditionary Force (MEF) plus
one Marine Expeditionary Brigade (MEB).
i. Number needed to lift assault echelons of 2.5 MEBs. Note how number needed to meet
this goal changed from Base Force plan to the BUR plan — a result of new, larger
amphibious ship designs.
36 Source: CBO telephone conversation with CRS, May 31, 2006. See also Statement of J.
Michael Gilmore, Assistant Director, and Eric J. Labs, Principal Analyst, [On] Potential
Costs of the Navy’s 2006 Shipbuilding Plan, [Testimony] before the Subcommittee on
Projection Forces Committee on Armed Services U.S. House of Representatives, March 30,
2006.

CRS-23
Some observers in 2006 and 2007 questioned whether all five of the above
things would happen, arguing the following:
! The need in coming years to fund an increase in Army and Marine
end strength could, within an overall DOD budget that remains more
or less flat in real terms, require funding to be transferred from the
Air Force and Navy budgets to the Army and Marine Corps budgets,
which could, for a time at least, lead to a real decline in the Air
Force and Navy budgets.
! DOD in the past has not been fully successful in meeting its goals
for controlling O&M costs.
! The Navy does not have full control over its MilPer costs — they
can be affected, for example, by decisions that Congress makes on
pay and benefits.
! While the Navy may be able to decrease R&D spending in coming
years as a number of new systems shift from development to
procurement, it may be difficult for the Navy to keep R&D spending
at that reduced level over the long run, because the Navy at some
point will likely want to start development of other new systems.
! Several Navy shipbuilding programs have experienced significant
cost growth in recent years, and CBO estimates that Navy ships will
cost substantially more to build than the Navy estimates.
If one or more of the five required things listed above did not happen, it was
argued in 2006 and 2007, it might become difficult or impossible to execute the
Navy’s shipbuilding plans. The risk of the plan becoming unexecutable, it was
argued, might become particularly acute starting in FY2011-FY2013, when the Navy
planned to increase procurement rates for cruisers and destroyers and for submarines.

CRS-24
Appendix E. Size of Navy and
Navy Shipbuilding Rate
The total number of battle force ships in the Navy reached a late-Cold War peak
of 568 at the end of FY1987 and began declining thereafter.37 The Navy fell below
300 battle force ships in August 2003 and included 280 battle force ships as of March
17, 2008.
Table 8 below shows past (FY1982-FY2008) and projected (FY2009-FY2013)
rates of Navy ship procurement.
Table 8. Battle Force Ships Procured or Projected,
FY1982-FY2013
(Procured FY1982-FY2008; projected FY2009-FY2013)
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
17
14
16
19
20
17
15
19
15
11
11
7
4
4
5
4
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
5
5
6
6
6
5
7
8
4a
5a
4
7
8
8
12
12
Source: CRS compilation based on examination of defense authorization and appropriation
committee and conference reports for each fiscal year. The table excludes non-battle force ships that
do not count toward the 313-ship goal, such as certain sealift and prepositioning ships operated by the
Military Sealift Command and oceanographic ships operated by agencies such as the National Oceanic
and Atmospheric Administration (NOAA).
a. The totals shown for FY2006 and FY2007 have been adjusted downward to reflect the Navy’s
decision to cancel two LCSs funded in FY2006 and another two LCSs funded in FY2007.
37 Some publications have stated that the Navy reached a peak of 594 ships at the end of
FY1987. This figure, however, is the total number of active ships in the fleet, which is not
the same as the total number of battle force ships. The battle force ships figure is the
number used in government discussions of the size of the Navy. In recent years, the total
number of active ships has been larger than the total number of battle force ships. For
example, the Naval Historical Center states that as of November 16, 2001, the Navy
included a total of 337 active ships, while the Navy states that as of November 19, 2001, the
Navy included a total of 317 battle force ships. Comparing the total number of active ships
in one year to the total number of battle force ships in another year is thus an apple-to-
oranges comparison that in this case overstates the decline since FY1987 in the number of
ships in the Navy. As a general rule to avoid potential statistical distortions, comparisons
of the number of ships in the Navy over time should use, whenever possible, a single
counting method.