59:
26:
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size, but it will be, to our view, likely the basic hull form shape, appropriately sized and with the proper features added to accommodate the CG(X) mission". The Chief of Naval
Operations claimed in 2005 that "the DD(X) hull and propulsion plant will be spiraled into the CG(X) platform with about 80% design overlap". In the same testimony, he stated that designing a new hull would cost about $ 4B.
304:
In April 2002, John Young, Assistant
Secretary of the Navy for Research, Development and Acquisition, stated that "the DD(X) hull will be the base from which they propose the design changes necessary to evolve this to CG(X). That could include various things from lengthening the hull and changing the
360:
The Navy studied nuclear power as a design option for the CG(X), but has never announced whether it would prefer to build the CG(X) as a nuclear-powered ship - it would have added $ 600–800M to the initial cost of the ship, but save on running costs. Under normal budgeting practices, long lead-time
356:
Meanwhile, members of the House
Projection Forces Subcommittee had been pressing the Navy to use nuclear power for major combatants, partly as a response to concerns about the price and availability of oil. They prompted studies in 2005 and 2006, the second of which stated that nuclear power broke
352:
s gas turbines are capable of generating 78 megawatts (105,000 hp), and that was thought barely sufficient for the radar and future weapon systems on the CG(X) - the working assumption is that the entire ship's electric load, including a
Theater Ballistic Missile Defense radar will consume 31
315:
s hull. Naval architect Ken Brower said in April 2007 that "as a ship pitches and heaves at sea, if you have tumblehome instead of flare, you have no righting energy to make the ship come back up. On the , with the waves coming at you from behind, when a ship pitches down, it can lose transverse
332:
hull, and a ballistic missile defense ship of 23,000 tons. The latter would use a more conventional shape than the tumblehome, as its use of radars to search for missiles while on station would make a stealthy hull pointless. In July 2008, Roscoe
Bartlett of the House Seapower subcommittee
357:
even at an oil price of $ 70–$ 225 per barrel for escort ships of 21–26,000 tonnes with heavy radar use. This led to a requirement in the FY2008 Defense
Authorization Act that all major combatant vessels be nuclear powered unless it was not in the national interest.
247:(SC-21) program. This envisaged a destroyer called DD-21 and a planned cruiser called CG-21. Budget cuts in November 2001 meant that SC-21 became the less ambitious Future Surface Combatant program. The DD-21 was renamed DD(X), which was later named the
361:
items for nuclear propulsion would have needed to be procured in FY2009 if the main ship were to be procured in FY2011. If the two-class solution had been pursued, it seems probable that the escort cruiser would have used gas turbines like
320:
hull was big enough to accommodate ballistic defense weapons, and a possible nuclear propulsion system. In July 2007 came the first suggestions that the AOA might recommend a two-class solution, a 14,000 ton "escort cruiser" based on
503:-sized hull could not carry a meaningful number. They were considered to be dropped from the CG(X) program before ultimately being canceled altogether in May 2009 due to "technical and financial" reasons.
855:
Version presented at 2007 SNAME Maritime
Technology Conference & Expo 14–16 November 2007, a year after the data were presented to the Navy as requested by Section 130 of Public Law 109-163.
218:
and area air defense for a carrier group. These vessels were to enter service beginning in 2017. The program was ended in 2010 with its mission to be fulfilled by the successor to the
717:
473:
s lack of capability in air defense and ballistic missile defense was cited as a major reason for the near-cancellation of the class in July 2008. Recent intelligence that
562:
273:-sized "escort cruisers" and five 23,000 ton ballistic missile defense ships. There was political pressure for some or all of these ships to be nuclear powered.
258:-class cruisers will reach their retirement age of 35 years between 2021 and 2029, although the U.S. Navy may use upgrades to extend their lives to 40 years.
291:, after the U.S. Navy concluded that the ships could rely on off-board and space-based sensors and so did not need a radar bigger than the DDG could carry.
443:. As mentioned above, a future Theater Ballistic Missile Defense radar is being modelled as consuming 31 MW of electrical power, compared to 5 MW for the
1035:
781:
808:"Fiscal Year (FY) 2009 Budget Estimates Justification Of Estimates February 2008 Research, Development, Test & Evaluation, Navy Budget Activity 4"
266:
The CG(X) program was announced on 1 November 2001. An initial requirement for 18 CG(X) was raised to 19 under the plan for a 313-ship Navy in 2005.
950:
254:
destroyer. By April 2002, DD(X) was to be the "foundation" for a family of surface combatants, including CG(X) as the successor to the CG-21. The
686:"Statement of Admiral Vern Clark, U.S. Navy Chief of Naval Operations Before The House Armed Services Committee Projection Forces Subcommittee"
276:
The fiscal year (FY)2009 budget called for procurement of the first CG(X) in 2011, and the second in 2013. On 1 February 2010, U.S. President
685:
535:
353:
megawatts (MW). In July 2008, Young said that "for the most capable radar suites under consideration, the hull cannot support the radar".
807:
608:
1030:
721:
512:
642:
444:
495:
program was developing new weapons against ballistic missiles, but the missiles would have taken up six times more space than
569:
425:
280:
unveiled his proposed budget for FY2011. This budget called for, among other things, canceling the entire CG(X) program.
288:
219:
466:
hull would lose one or both of its guns, and replace them with more VLS launchers for anti-aircraft missiles. However,
991:
895:
365:, and the larger ballistic missile defense ship would have been nuclear powered, and hence known as the CGN(X).
586:
448:
387:
316:
stability as the stern comes out of the water - and basically roll over." There were also doubts whether the
785:
671:
691:. House Armed Services Committee Projection Forces Subcommittee. 19 July 2005. p. 11. Archived from
239:
In the early 1990s, the U.S. Armed Forces had to respond to new threats and budgets after the end of the
958:
492:
284:
412:, hence the proposal for the ballistic missile defense ship of a larger hull with nuclear propulsion.
215:
195:
74:
933:
1025:
692:
539:
437:
405:
369:
248:
205:
658:
488:
s air defense was believed to be good enough to justify delaying the introduction of the CG(X).
1010:
814:
615:
782:"Opening Statement of Ranking Member Roscoe Bartlett on Navy Destroyer Acquisition Programs"
763:
404:
hull. On the other hand, it would give plenty of headroom for future weapon systems such as
951:"John Young - Assistant Secretary of the US Navy For Research, Development And Acquisition"
244:
867:"DDG-1000 Hull Can't Support Most Capable Radar Planned For CG(X), Pentagon Official Says"
8:
172:
866:
639:
640:
RL32109 Navy DDG-51 and DDG-1000 Destroyer
Programs: Background and Issues for Congress
481:
appears to be shaping the Navy's thinking on the CG(X)'s capabilities, when previously
191:
64:
992:"Navy CG(X) Cruiser Program: Background, Oversight Issues, and Options for Congress"
848:"Alternative Propulsion Methods for Surface Combatants and Amphibious Warfare Ships"
563:"Navy Aegis Cruiser and Destroyer Modernization: Background and Issues for Congress"
393:
896:"Navy Nuclear-Powered Surface Ships: Background, Issues, and Options for Congress"
972:
915:
646:
382:
of which 34 MW is used for propulsion, and halving one of the two 550 thermal MW
269:
A reassessment in 2007 suggested splitting the CG(X) into two classes, fourteen
1000:. This article provides an overview of the CG(X) program as of September 2008.
1019:
847:
333:
stated that it was "unlikely the hull could be used in the CG(X) program".
277:
884:
H.R. 4986, originally H.R. 1585, passed on 28 January 2008 as P.L. 110-181
995:
899:
383:
379:
736:
Cavas, Christopher P (2 April 2007). "Is New U.S. Destroyer
Unstable?".
329:
433:
432:
class. It might also have been influenced by the replacement for the
375:
211:
813:. Department of The Navy. February 2008. p. 250. Archived from
204:. Original plans were for 18–19 ships, based on the 14,500 ton
904:
is a broad discussion of the issues relating to nuclear propulsion.
477:
is developing targetable anti-ship ballistic missiles based on the
421:
420:
The CG(X) radar system would likely have been a development of the
409:
400:
for power, while the second option probably would not fit into the
240:
875:
Quotes letter of 2 July 2008 from John Young to Rep. Gene Taylor.
201:
132:
341:
The CG(X) would have used the IPS electric propulsion system of
659:
CRS RL34179 Navy CG(X) Cruiser
Program: Background for Congress
25:
939:. Office of the Secretary of Defense. p. 2 (p12 of PDF).
478:
474:
194:
research program to develop a replacement vessel for its 22
784:. Committee on Armed Services. 31 July 2008. Archived from
496:
368:
The AOA apparently looked at two options, using two of the
898:. Congressional Research Service. RL33946. Archived from
568:. Congressional Research Service. RS22595. Archived from
934:"Military Power of the People's Republic of China 2008"
720:. Defense Industry Daily. 12 April 2007. Archived from
308:
However, concerns began to grow about the stability of
345:, as of the FY09 budget estimates in February 2008.
1011:
CG(X) Next Generation Cruiser on GlobalSecurity.org
287:. The CG(X)'s mission will instead be performed by
757:
755:
753:
751:
749:
747:
1017:
994:. Congressional Research Service. Archived from
973:"MDA Request Kills KEI, Focuses on Ascent Phase"
907:
744:
989:
893:
560:
538:. Global Security. July 2011. Archived from
841:
839:
837:
835:
513:List of cruisers of the United States Navy
261:
1036:Cancelled ships of the United States Navy
764:"25,000-ton cruiser under consideration"
396:. The first option would not even match
832:
718:"Will DDG-1000 Destroyers Be Unstable?"
674:. Department of Defense. 29 April 2002.
530:
528:
171:1 × 155 mm (6 in)/62 caliber
1018:
990:O'Rourke, Ronald (20 September 2007).
914:Cavas, Christopher P (4 August 2008).
283:The program was cancelled in the 2010
245:Surface Combatant for the 21st Century
87:$ 3.2 billion (forecast for lead ship)
916:"Missile Threat Helped Drive DDG Cut"
913:
762:Cavas, Christopher P (26 July 2007).
761:
735:
587:"Things you should know about budget"
436:Cobra Judy missile-tracking radar on
864:
561:O'Rourke, Ronald (1 February 2007).
525:
30:CG(X) may have used the hull of the
845:
609:"Quadrennial Defense Review Report"
426:active electronically scanned array
243:. The U.S. Navy's response was the
13:
1031:Cruisers of the United States Navy
983:
14:
1047:
1004:
957:. 12 January 2005. Archived from
894:O'Rourke, Ronald (22 May 2008).
57:
24:
16:US Navy cruiser research program
965:
943:
926:
887:
878:
858:
800:
774:
672:"News Transcript 29 April 2002"
710:
678:
664:
652:
633:
601:
579:
554:
1:
518:
336:
234:
865:Fein, Geoff (11 July 2008).
853:. Naval Sea Systems Command.
661:. CRS, 10 June 2010, page 5.
289:DDG-51 Flight III destroyers
34:-class destroyer, seen here.
7:
506:
186:program, also known as the
10:
1052:
493:Kinetic Energy Interceptor
457:
415:
285:Quadrennial Defense Review
229:
294:
216:ballistic missile defense
123:
39:
23:
649:. CRS, 26 February 2010.
95:Cancelled (planned 2017)
406:directed-energy weapons
299:
262:Next Generation Cruiser
188:Next Generation Cruiser
124:General characteristics
955:Jane's Defence Weekly
846:Webster; et al.
645:23 April 2010 at the
462:A CG(X) based on the
961:on 19 February 2009.
820:on 10 December 2014
788:on 10 February 2009
621:on 28 February 2010
173:Advanced Gun System
158:Integrated Electric
698:on 14 October 2008
440:Observation Island
192:United States Navy
142:20,000–25,000 tons
65:United States Navy
542:on 25 August 2021
394:aircraft carriers
224:-class destroyers
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724:on 27 April 2007
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452:-class destroyer
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214:with additional
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998:on 22 May 2011.
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984:Further reading
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975:. Defense News.
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190:program, was a
147:Installed power
58:
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35:
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5:
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1005:External links
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40:Class overview
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996:the original
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909:
900:the original
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880:
870:
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822:. Retrieved
815:the original
802:
790:. Retrieved
786:the original
776:
767:
737:
726:. Retrieved
722:the original
712:
700:. Retrieved
693:the original
680:
666:
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623:. Retrieved
616:the original
603:
591:. Retrieved
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570:the original
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544:. Retrieved
540:the original
500:
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139:Displacement
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31:
18:
920:DefenseNews
738:DefenseNews
625:24 February
546:20 November
328:s stealthy
256:Ticonderoga
220:Flight III
197:Ticonderoga
76:Ticonderoga
71:Preceded by
1020:Categories
824:13 October
792:13 October
768:Navy Times
734:, quoting
728:13 October
702:13 October
519:References
438:USNS
424:dual-band
376:submarines
337:Propulsion
330:tumblehome
235:Background
155:Propulsion
434:AN/SPQ-11
212:destroyer
116:Cancelled
53:Operators
643:Archived
593:28 April
507:See also
422:AN/SPY-3
410:railguns
386:used in
378:' 43 MW
241:Cold War
202:cruisers
163:Armament
108:Building
536:"CG-21"
501:Zumwalt
483:Zumwalt
468:Zumwalt
464:Zumwalt
458:Weapons
430:Zumwalt
416:Sensors
402:Zumwalt
398:Zumwalt
371:Seawolf
363:Zumwalt
347:Zumwalt
343:Zumwalt
323:Zumwalt
318:Zumwalt
310:Zumwalt
271:Zumwalt
250:Zumwalt
230:History
207:Zumwalt
150:Nuclear
133:Cruiser
100:Planned
32:Zumwalt
499:and a
391:-class
389:Nimitz
373:-class
295:Design
252:-class
209:-class
199:-class
62:
937:(PDF)
851:(PDF)
818:(PDF)
811:(PDF)
696:(PDF)
689:(PDF)
619:(PDF)
612:(PDF)
589:. CNN
573:(PDF)
566:(PDF)
497:SM-3s
486:'
479:DF-21
475:China
471:'
445:AEGIS
350:'
326:'
313:'
184:CG(X)
78:class
48:CG(X)
826:2008
794:2008
730:2008
704:2008
627:2022
595:2010
548:2021
491:The
408:and
300:Hull
182:The
129:Type
111:none
84:Cost
45:Name
1022::
953:.
918:.
869:.
834:^
766:.
746:^
527:^
454:.
226:.
119:19
103:19
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597:.
550:.
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