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the rotorcraft's final weight; there were concerns that, when outfitted with actual equipment required for operations, the
Comanche's engines would be incapable of lifting the total weight of the helicopter. Additionally, it has been claimed that it proved difficult to convince the Army that the program suffered from serious troubles while key individuals failed to realize the existence of insurmountable technical problems. Prized elements of the program, such as certain software capabilities and its integration, failed to foster confidence with Army overseers; several capabilities were viewed as having been unproven and risky, while the anticipated consumption of up to 40 percent of the aviation budget by the Comanche alone for a number of years was considered to be extreme. According to Williams, it was concluded that the Army's aviation budget would be better spent on the delivery of less risky and more critical needs.
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phase was to last for six years with five
Comanches to be constructed for the testing regime. During 2003, production on the third RAH-66, which was to be the first EMD-conformant helicopter, was started. Subsequently, eight RAH-66s were to be constructed for operational testing purposes. The initial production RAH-66s were to be completed in a Block I configuration that included the majority of the rotorcraft's planned weapons and sensors. From the 16th Comanche onwards, deliveries would have been made to the Block II standard with all of the planned capabilities.
320:. Following a demonstration of its ability to meet certain key criteria, on 1 June 2000, the RAH-66 entered the $ 3.1 billion engineering and manufacturing development (EMD) phase of the program. Through the early 2000s, the U.S. Army maintained its plans for the intended purchase of over 1,200 Comanches, which were to fill both the scout helicopter and light attack roles; as late as 2003, it was being anticipated that deliveries of operational RAH-66s would commence as scheduled during 2006.
42:
335:, had accumulated 103.5 flight hours and 93 sorties by May 2001. During late 2001 and early 2002, testing with the second RAH-66 was halted while the aircraft underwent extensive modifications, received both mission equipment and more powerful T800-LHT-801 engines. On 23 May 2002, the second prototype re-commenced flight testing with the additional equipment fitted. Accordingly, the expanded test programme involved new aspects such as the testing of the armaments and
409:, had led to some senior figures within the Army to place a greater emphasis on the use of unmanned platforms for conducting many of the same roles for which the Comanche was being developed to perform. By 2000, Williams postulates that the primary reason for retaining the program was out of concern for the state of the helicopter industry—Sikorsky's production and employment figures were at their lowest for decades and the contract was considered critical.
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432:", and a protracted development period, to have caused problems with the program, rather than dysfunctionality on their part. Under the Comanche program, each company was responsible for the construction of different elements of the rotorcraft. Since the termination, both companies have decided to team up again to produce a jointly-developed prototype, designated as the
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196:(GAO) had reported that it had "serious doubts" about the program, observing that the Comanche would "consume almost two thirds of the whole Aviation budget by Fiscal Year 2008". Multiple government agencies had acted to cut the number of Comanches on order, but, as a consequence of the heavy reductions to the numbers to be procured, the unit costs soared.
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rotorcraft resulted in the formation of a negative cycle that functioned to greatly extend the rotorcraft's development schedule. Over the course of the
Comanche's development, multiple government agencies had acted to cut the number of helicopters that were intended to be ordered; one particularly common basis for such curtailments was that the
293:. The first flight had been originally planned to take place during August 1995, but had been delayed by a number of structural and software problems that had been encountered. On 30 March 1999, the second prototype conducted its first flight, before joining the flight test program shortly thereafter.
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as an example of excessive requirements being present in a project's design phase and of their costly repercussions. Williams observes that the
Comanche's weight requirements were unachievable, and claimed that this was due to poor management, in which no party was allegedly aware of or in control of
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threats; however, the Army had instead decided to re-direct the bulk of its funding for rotary development toward the renovation of its existing helicopter fleet of attack, utility, and reconnaissance aircraft. Specifically, the Army also had plans to reuse the funds allocated to the
Comanche program
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systems; these test flights continued into 2003. During testing, the
Comanche was recorded as having attained a cruise speed of 162 knots (186 mph; 300 km/h), as well as having achieved a "dash speed" of 172 knots (198 mph; 319 km/h). It also demonstrated ability to perform a 180°
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team's design as the contest winner, shortly after which a contract for construction of prototypes was awarded. The
Comanche was to incorporate several advanced elements, such as stealth technologies, and a number of previously untried design features. Operationally, it was to employ advanced sensors
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As intended, the
Comanche was to be equipped with sophisticated avionics, including navigation and detection systems, which would have enabled operations at night and in inclement weather. Its primary mission was scouting using its advanced sensors, in particular locating and designating targets for
424:
In a report published during 2008, the GAO recorded that an Army spokesperson had stated that "the program's costs could no longer be justified". Author Cindy
Williams stated of the Comanche: "The rationale for cutting Comanche... is twofold. First, the doctrinal niche that the Comanche occupies is
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On 23 February 2004, the U.S. Army announced that they had decided to terminate all work on the
Comanche program. At the time, it was stated that the Army had determined that a number of upgrades would be necessary in order for the RAH-66 to be capable of surviving on the battlefield in the face of
199:
On 23 February 2004, the U.S. Army announced the termination of the Comanche program, stating they had determined that the RAH-66 would require numerous upgrades to be viable on the battlefield and that the service would instead direct the bulk of its rotary systems funds to renovating its existing
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During 2002, the Comanche program underwent heavy restructuring; consequently, the planned number of Comanches to be purchased was decreased to 650 rotorcraft. At the time, the projected total cost for the full production of the Comanche in such numbers stood at $ 26.9 billion. Originally, the EMD
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Two RAH-66 prototypes were constructed and underwent flight testing between 1996 and 2004. On 1 June 2000, the program entered its $ 3.1 billion engineering and manufacturing development (EMD) phase. However, during 2002, the Comanche program underwent heavy restructuring; the number of Comanches
567:. Beyond storing munitions internally, the Comanche could also mount external stub wings to carry up to eight Hellfire missiles or sixteen Stinger missiles. However, operations performing with armaments mounted externally would reduce the effectiveness of the Comanche's stealth technologies.
384:
A multitude of reasons contributed to the ultimate cancellation of the RAH-66 program. According to aviation author James Williams, efforts to speed up the program via the elimination of risk-mitigation measures and the stream of continuous adjustments to account for annual budget cuts to the
362:(UAVs), which could also perform the scouting role intended for the vehicle. At the time of its termination, the Comanche program had reportedly spent US$ 6.9 billion. The contract termination fees involved were estimated to total US$ 450–680 million for the main program partners
381:, being selected and developed with the intention to replace the OH-58D in place of the Comanche. However, on 16 October 2008, the Department of Defense notified Congress and Bell that it was canceling the program, reportedly due to cost overruns on its development.
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reduced the number of planned prototypes to two as the services shifted budgets to pay for increased troop salaries. On 25 May 1995, the first Comanche prototype was formally rolled out at Sikorsky's production facility, after which it was transferred to
400:
As early as 1995, it is claimed by Williams that the Comanche had been facing complete cancellation as a choice between which defense development programs were to be scrapped. During mid-1999, the Comanche was subject to substantial governmental scrutiny; the
394:
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2x 112 US gal (93 imp gal; 420 L) optional side weapon bay tanks; Total 1,201.6 US gal (1,000.5 imp gal; 4,549 L) / 1,425.6 US gal (1,187.1 imp gal; 5,396 L) with weapon bay
405:(GAO) reported that it had "serious doubts" about the program and noted that the Comanche would "consume almost two thirds of the whole Aviation budget by Fiscal Year 2008". In addition, wartime experiences, such as from the
548:
rotary cannon, which could be pointed rearwards and retracted under a fairing when not in use to decrease the helicopter's radar cross-section. In addition, the RAH-66 was capable of internally carrying a maximum of six
393:"). However, significant reductions in volume directly resulted in the rapid climbs in the projections of the Comanche's unit cost; in turn, this stimulated and gave validity to critics of the program, such as the
479:; it was designed to be capable of fitting more readily onto transport ships, enabling the Comanche to be more rapidly deployed to flash points and other rapidly-developing situations. However, in the event of
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that were to be purchased was cut to 650. At the time, the projected total cost for the full production of the Comanche in such numbers stood at $ 26.9 billion. As early as the late 1990s, the
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241:(RFP) was issued to various manufacturers; the requirement had evolved into a battlefield reconnaissance helicopter by this time. In October 1988, the Army announced two teams, these being
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204:(UAVs), which could also perform the scouting role intended for the Comanche, but with less risk. Since program cancellation, both of the prototypes have been placed on public display.
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The Comanche was intended to be an advanced armed reconnaissance and attack helicopter. The Comanche was specifically tailored to the role of armed scout to replace the U.S. Army's
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unnecessary in the near term and probably not viable in the longer term. Secondly, as with all rotary-wing aircraft, the Comanche is a voracious consumer of strategic airlift."
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of the helicopter was also reported to be noticeably lower than that of comparable helicopters; this reduction had been partially achieved through the adoption of an all-
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by approximately 200 lb (91 kg) or 2.1 percent in order to conform with its established target weight had been initiated. The first Comanche prototype, serial
261:(LH). In April 1991, the Army awarded the Boeing–Sikorsky team a $ 2.8 billion contract to complete six prototypes. Later that month the helicopter was officially named
1621:
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to commence flight testing activities. On 4 January 1996, the prototype Comanche, flown by test pilots Bob Gradle and Rus Stiles, performed its 39-minute
155:
During the early 1980s, the U.S. Army started to formulate requirements for the replacement of its helicopters then in service, which resulted in the launch of the
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For the light attack role, the RAH-66 was to be furnished with various armaments. It was equipped with a single chin-mounted 20 mm three-barrel
510:-suppressant paint; as a result of these combined measures, the Comanche's RCS was stated to be 360 times smaller than that of the AH-64 Apache. The
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engines, each capable of generating up to 1,563 hp (1,165 kW) of power. The RAH-66's fuselage was 43 feet (13 m) long and composed of
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159:(LHX) program. Nearly a decade later, following the refinement of requirements, evaluation of submissions, and the rebranding of the program as the
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Defense Acquisitions: Termination Costs are generally not a Compelling Reasons to continue Programs or Contracts that otherwise Warrant Ending
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331:, completed 318 flights over 387 hours before reaching the end of its testing career during January 2002. The second prototype, serial
280:. Later all of the rotorcraft's sub-assemblies were transferred to the former location where final assembly occurred. In December 1994, the
148:. Following decades of study and development, the RAH-66 program was cancelled in 2004 before mass production began, by which point nearly
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An RAH-66 Comanche flying in formation with an AH-64 Apache. Part of the Comanche's planned role was to designate targets for the Apache.
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news/08253news.xml&headline=Comanche%20Weight%20Control%20Gets%20Special%20Attention Comanche Weight Control Gets Special Attention
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In 2001, the Army sought to procure a "heavy attack" variant of the Comanche, which was intended to begin replacing Apaches in 2025.
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James Ambrose, who had prominently declared that the Army would not receive any aircraft "costing a dollar over $ 7.5 million".
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The manufacturing team, Sikorsky and Boeing, have attributed factors that were outside of their control, such as budget cuts, "
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257:, received contracts to further develop their concepts. During the 1990s, the program's name was changed from LHX to simply
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attack, utility, and reconnaissance helicopters. The Army also announced new plans to accelerate the development of
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of 1,200 nmi (2,200 km) would have allowed it to fly itself to battlefields overseas on its own.
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The flight test program was conducted using the pair of prototypes produced, which had been assigned the
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498:(RCS) along with other areas of visibility and detectability. The exterior surfaces of the RAH-66 were
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Subsequently, the Army decided to pursue development of another battlefield scout helicopter under the
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221:(LHX) program with the aim of producing a replacement for several existing rotorcraft, including the
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attack helicopters, such as the AH-64 Apache, to strike. The Comanche was furnished with a digital
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criticized the program's requirement for the Comanche to be capable of ferrying itself across the
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Baumgardner, Neil (16 November 2001). "'Heavy Comanche' To Replace Apache, Army Officials Say".
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During November 1993, assembly of the first prototype commenced at Sikorsky's facility in
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attack helicopter that it had been intended to accompany. The RAH-66 was powered by a pair of
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Fulghum, David A.; Wall, Robert (29 February 2004). "Comanche Helicopter Program Killed".
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Jane's All the World's Aircraft 2005–2006, Frawley, Boeing and Sikorsky, Bonds and Miller
494:, incorporating a number of different techniques and technologies in order to reduce its
1253:"Comanche Restructuring Gives Additional Nine Months To Work Weight, Integration Issues"
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533:. Each of the two crew members were to be provided with a pair of multi-functional
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in its reconnaissance role, in which it was intended to designate targets for the
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1958:
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had ended and thus such quantities were unnecessary (a phenomenon known as the "
378:
234:
230:
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443 sq ft (41.2 m) 5-bladed main rotor with fenestron tail rotor
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688:
602:
472:
469:
406:
1997:
1942:
1903:
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1375:"Armed Reconnaissance Helicopter program halted, need for capability remains"
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301.6 US gal (251.1 imp gal; 1,142 L) internal fuel
3345:
3238:
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564:
41:
323:
During late 2000, it was revealed that an effort to reduce the Comanche's
3642:
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507:
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163:(LH) program, during April 1991, the Army announced the selection of the
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Optional stub wings: 8× Hellfires, 16× Stingers, or 56× Hydra 70 rockets
673:
2x 450 US gal (370 imp gal; 1,700 L) drop tank
1755:
Bonds, Ray and David Miller (2002). "Boeing Sikorsky RAH-66 Comanche".
480:
188:
in internal bays and optionally on stub wings for light attack duties.
181:
2019:
Holding the line: U.S. defense alternatives for the early 21st century
464:-era observation helicopter. It was both smaller and lighter than the
185:
2285:
2039:
A History of Army Aviation: From its Beginnings to the War on Terror
1651:(96th ed.). London: Jane's Publishing Group. pp. 633–634.
880:
601:
545:
499:
447:
300:
1478:
Sikorsky-Boeing confident SB-1 Defiant won’t be the next Comanche
1278:"Briefing on the Restructure and Revitalization of Army Aviation"
377:
program; this resulted in another rotorcraft, designated as the
3051:
2289:
2159:
1349:"Comanche contractors will see funding hikes in other programs"
663:
17,408 lb (7,896 kg) maximum fuel for self-deployment
149:
563:, which would be evenly divided between a pair of retractable
534:
639:
6 ft 8.25 in (2.0384 m) maximum fuselage width
1957:
Siuru, William D (1993). "Boeing Sikorsky RAH-66 Comanche".
757:
165 kn (190 mph, 306 km/h) without mast radar
732:
175 kn (201 mph, 324 km/h) without mast radar
1716:(4732). London: Reed Business Information: 6. 6 June 2000.
1377:(Press release). U.S. Army. 17 October 2008. Archived from
3093:
Numerical sequence used by USAAC/USAAF/USAF 1941–present;
1861:
Harding, Stephen (1997). "Boeing-Sikorsky H-66 Comanche".
3856:
Cancelled military aircraft projects of the United States
1960:
Future Flight: The Next Generation of Aircraft Technology
1500:"Comanche RAH-66 – 21st Century Multi-Mission Helicopter"
862:
0.13 hp/lb (0.21 kW/kg) at MTOW, take-off power
768:
149 kn (171 mph; 276 km/h) with mast radar
743:
166 kn (191 mph; 307 km/h) with mast radar
2121:
1159:(Press release). Boeing. 4 January 1996. Archived from
1092:"Pentagon to Cut $ 7.7 Billion in New Weapons Programs"
1781:
The Design of Design: Essays from a Computer Scientist
522:
main rotor and pioneering canted tail rotor assembly.
1301:
1299:
1211:"Army Aviation: The RAH-66 Comanche Helicopter Issue"
1050:
1048:
1046:
1044:
1042:
1040:
1038:
1036:
1034:
788:
150 nmi (170 mi, 280 km) internal fuel
3851:
1990s United States military reconnaissance aircraft
1898:(4680). London: Reed Business Information: 112–116.
1133:(Press release). Boeing. 25 May 1995. Archived from
3782:
3681:
3492:
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3418:
3206:
3115:
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957:
Aircraft of comparable role, configuration, and era
122:
117:
109:
99:
91:
75:
67:
56:
51:
34:
2187:Boeing Vertol/Boeing Helicopters/Boeing Rotorcraft
1862:
1799:
1783:. Upper Saddle River, New Jersey: Addison Wesley.
1622:"U.S. Army Aviation Museum prepares for expansion"
1459:Government Accountability Office 2008, p. 10.
1428:
1426:
1015:
1013:
1011:
836:500 ft/min (152.4 m/min) with mast radar
825:895 ft/min (4.55 m/s) without mast radar
1823:The International Directory of Military Aircraft
1758:Illustrated Directory of Modern American Weapons
1624:. The Southeast Sun. 2 July 2014. Archived from
1280:. U.S. Department of Defense. 23 February 2004.
1216:. Congressional Research Service. Archived from
924:Litton laser ring gyro and GPS Nav/Attack system
1937:(4723). London: Reed Business Information: 29.
1840:Government Accountability Office (March 2008).
1494:
1492:
1490:
1992:(4923). London: Reed Business Information: 4.
1131:"First Comanche Helicopter Prototype Unveiled"
3063:
2301:
2171:
1869:. Atglen, Pennsylvania: Schiffer Publishing.
1204:
1202:
794:1,200 nmi (1,400 mi, 2,200 km)
691:engines, 1,563 shp (1,166 kW) each
483:assets not being available, the helicopter's
8:
1738:The Encyclopedia of Modern Military Aircraft
898:air-to-air missiles, or 24× 2.75 in (70 mm)
1398:
1396:
1180:
1178:
1116:
1114:
1112:
1001:
999:
997:
995:
490:As intended, it would have functioned as a
3426:
3112:
3070:
3056:
3048:
2308:
2294:
2286:
2178:
2164:
2156:
1761:. Grand Rapids, Michigan: Zenith Imprint.
1584:
1582:
1580:
1537:
1535:
1533:
539:Helmet-Integrated Display and Sight System
31:
2061:. Fyshwick, ACT: Aerospace Publications.
1846:. Darby, Pennsylvania: DIANE Publishing.
1825:. Fyshwick, ACT: Aerospace Publications.
1802:Twenty-First Century Military Helicopters
633:46 ft 10.25 in (14.2812 m)
217:During 1982, the U.S. Army initiated the
152:7 billion had been spent on the program.
2088:. Borouge, ACT: Aerospace Publications.
1806:. St. Louis, Minnesota: MBI Publishing.
1157:"Comanche Helicopter Makes First Flight"
2021:. Cambridge, Massachusetts: MIT Press.
1674:"The Incomplete Guide to Airfoil Usage"
1649:Jane's All the World's Aircraft 2005-06
1553:"Airbus Removes Veil From H160 Project"
1502:. Boeing Sikorsky. 1998. Archived from
1324:. CNN. 23 February 2004. Archived from
991:
782:262 nmi (302 mi, 485 km)
645:11 ft 0.75 in (3.3719 m)
272:and at Boeing's manufacturing plant in
27:Attack helicopter prototype (1996–2004)
1963:. New York: McGraw-Hill Professional.
1064:Stevenson, Richard W. (6 April 1991).
850:71 lb/sq ft (350 kg/m)
606:A cutaway drawing of a RAH-66 Comanche
2086:Combat and Firing Aircraft since 2003
1480:- Flightglobal.com, 22 October 2013.
7:
1558:Aviation Week & Space Technology
1209:Bolkcom, Christopher (2 July 2003).
460:, which is an upgraded version of a
3846:1990s United States attack aircraft
2042:. Bloomington, Indiana: iUniverse.
1978:Trimble, Stephen (2–8 March 2004).
951:U.S. Helicopter Armament Subsystems
800:2 hours 30 minutes on internal fuel
697:40 ft 0 in (12.19 m)
237:helicopters. Then in 1988 a formal
3841:United States military helicopters
1527:Bonds & Miller 2002, pp.81–82.
1322:"Army cancels Comanche helicopter"
1090:Schmitt, Eric (10 December 1994).
1066:"Boeing-Sikorsky Gets Copter Pact"
588:United States Army Aviation Museum
25:
3082:designations, Army/Air Force and
2249:Attack/reconnaissance helicopters
1565:from the original on 4 March 2015
1347:Klamper, Amy (24 February 2004).
2134:RAH-66 Comanche EMD Forges Ahead
2122:RAH-66 Comanche site (rah66.com)
2110:Boeing RAH Comanche history page
1980:"US Army calls time on Comanche"
1355:from the original on 6 June 2011
1284:from the original on 8 June 2011
935:
403:Government Accountability Office
194:Government Accountability Office
40:
3881:1990s United States helicopters
1588:Bonds & Miller 2002, p. 80.
1541:Bonds & Miller 2002, p. 81.
894:air-to-ground missiles, or 12×
375:Armed Reconnaissance Helicopter
134:Boeing–Sikorsky RAH-66 Comanche
18:Boeing-Sikorsky RAH-66 Comanche
1923:Lopez, Ramon (11 April 2000).
1884:Lewis, Paul (9–15 June 1999).
1551:Osborne, Tony (3 March 2015).
1251:Strass, Marc (18 March 2002).
657:12,349 lb (5,601 kg)
95:Cancelled in 2004 by U.S. Army
1:
1865:U.S. Army Aircraft Since 1947
806:14,980 ft (4,570 m)
651:9,300 lb (4,218 kg)
219:Light Helicopter Experimental
176:. It was also armed with one
157:Light Helicopter Experimental
3891:Aircraft first flown in 1996
3097:1948–1956 and 1962–present;
340:turn in under five seconds.
1647:Jackson, Paul, ed. (2005).
1602:. Vol. 3, no. 3.
1600:Defense Daily International
1432:Williams 2005, pp. 346–347.
1351:. Governmentexecutive.com.
358:to speed up development of
3912:
2059:Combat Aircraft since 1945
2036:Williams, James W (2005).
395:Army Acquisition Executive
46:The first RAH-66 prototype
3819:
3091:
578:Both prototype airframes
452:RAH-66 prototype in 1997.
140:armed reconnaissance and
39:
3886:Twin-turbine helicopters
3866:Experimental helicopters
3861:Boeing military aircraft
2084:Garcia, Stewart (2000).
2057:Wilson, Stewart (2000).
2017:Williams, Cindy (2001).
1821:Frawley, Gerard (2002).
1798:Crawford, Steve (2003).
1736:Eden, Paul, ed. (2004).
1028:Harding 1997. pp. 75–76.
598:Specifications (RAH-66A)
504:radar-absorbent material
360:unmanned aerial vehicles
287:West Palm Beach, Florida
202:unmanned aerial vehicles
3107:Army/Air Force sequence
2838:(military designations)
2540:(military designations)
2206:CH-47/Model 234 Chinook
2201:CH-46/BV-107 Sea Knight
1740:. London: Amber Books.
1678:m-selig.ae.illinois.edu
1441:Brooks 2010, pp. 39–41.
618:General characteristics
2608:(company designations)
2327:(company designations)
1468:Williams 2001, p. 169.
1450:Williams 2005, p. 349.
1420:Williams 2005, p. 346.
1411:Williams 2005, p. 343.
1402:Williams 2005, p. 342.
887:(capacity: 500 rounds)
607:
554:air-to-ground missiles
502:and covered with both
453:
306:
270:Stratford, Connecticut
2995:Experimental aircraft
2907:CH-53E Super Stallion
2118:on Globalsecurity.org
1704:"Comanche EMD Signed"
1184:Crawford 2003, p. 88.
902:air-to-ground rockets
605:
586:, are located at the
531:flight control system
451:
304:
282:Department of Defense
3420:Tri-Service sequence
3207:Prefix H-, 1948–1962
3116:Prefix R-, 1941–1948
2912:CH-53K King Stallion
2538:Fixed-wing aircraft
2325:Fixed-wing aircraft
2194:Transport rotorcraft
2127:16 June 2013 at the
2116:RAH-66 Comanche page
1985:Flight International
1930:Flight International
1891:Flight International
1709:Flight International
1194:Flight International
1019:Frawley 2007, p. 50.
973:Eurocopter Tiger ARH
695:Main rotor diameter:
458:OH-58D Kiowa Warrior
438:Future Vertical Lift
239:request for proposal
3896:Stealth helicopters
3876:Fantail helicopters
3430:1962 redesignations
2439:S-22/23/24/25/26/27
877:Turreted Gun System
661:Max takeoff weight:
574:Aircraft on display
561:air-to-air missiles
537:in addition to the
506:(RAM) coatings and
496:radar cross-section
481:strategic transport
477:composite materials
60:Reconnaissance and
52:General information
3682:Alternate sequence
2902:CH-53 Sea Stallion
2230:XCH-62 (Model 301)
2225:YUH-61 (Model 179)
2004:on 5 November 2012
1910:on 5 November 2012
1328:on 25 October 2012
1241:Lopez 2000, p. 29.
1120:Eden 2004, p. 139.
1096:The New York Times
1070:The New York Times
1005:Eden 2004, p. 138.
890:Internal bays: 6×
686:LHTEC T800-LHT-801
608:
512:acoustic signature
492:stealth helicopter
454:
307:
146:United States Army
104:United States Army
82:Boeing Helicopters
3871:Sikorsky aircraft
3826:
3825:
3815:
3814:
3414:
3413:
3045:
3044:
2283:
2282:
2152:, 24 August 2003.
2028:978-0-262-73140-9
1853:978-1-4379-0335-5
1790:978-0-201-36298-5
1777:Brooks, Frederick
1672:Lednicer, David.
1381:on 24 August 2011
1223:on 28 August 2013
963:Bell 360 Invictus
436:, for the Army's
430:requirement creep
297:Prototype testing
255:McDonnell Douglas
144:designed for the
142:attack helicopter
130:
129:
86:Sikorsky Aircraft
62:attack helicopter
16:(Redirected from
3903:
3654:
3493:New designations
3427:
3407:
3402:
3372:
3362:
3113:
3072:
3065:
3058:
3049:
3002:Cypher/Cypher II
2949:SH-60B/F Seahawk
2944:MH-60R/S Seahawk
2934:HH-60G Pave Hawk
2929:UH-60 Black Hawk
2310:
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2157:
2099:
2072:
2053:
2032:
2013:
2011:
2009:
2000:. Archived from
1974:
1953:
1951:
1949:
1925:"Paying its way"
1919:
1917:
1915:
1906:. Archived from
1886:"Digital Domain"
1880:
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1628:on 28 March 2016
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1484:on 22 July 2014.
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892:AGM-114 Hellfire
870:
804:Service ceiling:
725:
717:Sikorsky SSC-A09
701:Main rotor area:
620:
556:or up to twelve
551:AGM-114 Hellfire
259:Light Helicopter
180:and could carry
161:Light Helicopter
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2966:RAH-66 Comanche
2897:HH-52A Seaguard
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2270:RAH-66 Comanche
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2129:Wayback Machine
2106:
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2078:Further reading
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440:(FVL) program.
350:
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263:RAH-66 Comanche
215:
213:Origins and LHX
210:
136:is an American
68:National origin
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35:RAH-66 Comanche
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3455:
3452:
3448:
3445:
3443:
3440:
3439:
3438:
3435:
3434:
3432:
3428:
3425:
3421:
3417:
3404:
3399:
3397:
3394:
3392:
3389:
3387:
3384:
3382:
3379:
3377:
3374:
3369:
3367:
3364:
3359:
3357:
3354:
3352:
3349:
3347:
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3342:
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3337:
3334:
3332:
3329:
3327:
3324:
3322:
3319:
3317:
3314:
3312:
3309:
3307:
3304:
3302:
3299:
3297:
3294:
3292:
3289:
3287:
3284:
3282:
3279:
3277:
3274:
3272:
3269:
3267:
3264:
3262:
3259:
3257:
3254:
3250:
3247:
3246:
3245:
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3240:
3237:
3235:
3232:
3230:
3227:
3225:
3222:
3220:
3217:
3215:
3212:
3211:
3209:
3205:
3199:
3196:
3194:
3191:
3189:
3186:
3184:
3181:
3179:
3176:
3174:
3171:
3169:
3166:
3164:
3161:
3159:
3156:
3154:
3151:
3149:
3146:
3144:
3141:
3139:
3136:
3134:
3131:
3129:
3126:
3124:
3121:
3120:
3118:
3114:
3111:
3105:
3100:
3096:
3090:
3085:
3081:
3073:
3068:
3066:
3061:
3059:
3054:
3053:
3050:
3038:
3035:
3033:
3030:
3028:
3025:
3023:
3020:
3018:
3015:
3013:
3010:
3008:
3005:
3003:
3000:
2999:
2997:
2993:
2987:
2984:
2982:
2979:
2977:
2974:
2972:
2971:VH-92 Patriot
2969:
2967:
2964:
2960:
2957:
2955:
2952:
2950:
2947:
2945:
2942:
2940:
2939:HH-60J/MH-60T
2937:
2935:
2932:
2931:
2930:
2927:
2925:
2922:
2918:
2915:
2913:
2910:
2908:
2905:
2904:
2903:
2900:
2898:
2895:
2893:
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2880:
2878:
2875:
2873:
2870:
2868:
2865:
2863:
2860:
2858:
2855:
2851:
2848:
2847:
2846:
2845:SH-3 Sea King
2843:
2842:
2840:
2834:
2828:
2825:
2823:
2820:
2818:
2815:
2813:
2810:
2808:
2805:
2803:
2800:
2798:
2795:
2793:
2790:
2788:
2785:
2783:
2780:
2778:
2775:
2773:
2770:
2768:
2765:
2763:
2760:
2758:
2755:
2753:
2750:
2748:
2745:
2743:
2740:
2738:
2735:
2733:
2730:
2728:
2725:
2723:
2720:
2718:
2715:
2713:
2710:
2708:
2705:
2701:
2698:
2696:
2693:
2692:
2691:
2688:
2686:
2683:
2681:
2678:
2676:
2673:
2671:
2668:
2666:
2663:
2661:
2658:
2656:
2653:
2651:
2648:
2646:
2643:
2641:
2638:
2636:
2633:
2631:
2628:
2626:
2623:
2621:
2618:
2616:
2615:VS-300 (S-46)
2613:
2612:
2610:
2604:
2598:
2595:
2593:
2590:
2588:
2585:
2583:
2580:
2578:
2575:
2573:
2570:
2568:
2565:
2563:
2560:
2558:
2555:
2553:
2550:
2548:
2545:
2544:
2542:
2536:
2530:
2527:
2525:
2522:
2520:
2517:
2515:
2512:
2510:
2507:
2505:
2502:
2500:
2497:
2495:
2492:
2490:
2487:
2485:
2482:
2480:
2477:
2475:
2472:
2470:
2467:
2465:
2462:
2460:
2457:
2455:
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2445:
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2437:
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2432:
2430:
2427:
2425:
2422:
2420:
2417:
2415:
2412:
2410:
2407:
2405:
2402:
2400:
2397:
2395:
2392:
2390:
2387:
2385:
2382:
2380:
2377:
2375:
2372:
2370:
2367:
2365:
2362:
2360:
2357:
2355:
2352:
2350:
2347:
2345:
2342:
2340:
2337:
2335:
2332:
2331:
2329:
2323:
2318:
2311:
2306:
2304:
2299:
2297:
2292:
2291:
2288:
2276:
2273:
2271:
2268:
2266:
2265:WAH-64 Apache
2262:
2259:
2257:
2254:
2253:
2251:
2247:
2241:
2238:
2236:
2233:
2231:
2228:
2226:
2223:
2221:
2218:
2216:
2213:
2211:
2207:
2204:
2202:
2199:
2198:
2196:
2192:
2188:
2181:
2176:
2174:
2169:
2167:
2162:
2161:
2158:
2151:
2150:Aviation Week
2147:
2144:
2141:
2140:
2139:Aviation Week
2135:
2132:
2130:
2126:
2123:
2120:
2117:
2114:
2112:on Boeing.com
2111:
2108:
2107:
2103:
2097:
2095:1-875671-50-1
2091:
2087:
2082:
2081:
2077:
2070:
2068:1-875671-50-1
2064:
2060:
2055:
2051:
2049:0-595-36608-2
2045:
2041:
2040:
2034:
2030:
2024:
2020:
2015:
2003:
1999:
1995:
1991:
1987:
1986:
1981:
1976:
1972:
1970:0-8306-4376-1
1966:
1962:
1961:
1955:
1944:
1940:
1936:
1932:
1931:
1926:
1921:
1909:
1905:
1901:
1897:
1893:
1892:
1887:
1882:
1878:
1876:0-7643-0190-X
1872:
1867:
1866:
1859:
1855:
1849:
1845:
1844:
1838:
1834:
1832:1-875671-55-2
1828:
1824:
1819:
1815:
1813:0-7603-1504-3
1809:
1804:
1803:
1796:
1792:
1786:
1782:
1778:
1774:
1770:
1768:0-7603-1346-6
1764:
1760:
1759:
1753:
1749:
1747:1-904687-84-9
1743:
1739:
1734:
1723:
1719:
1715:
1711:
1710:
1705:
1701:
1700:
1695:
1679:
1675:
1668:
1665:
1660:
1658:9780710626844
1654:
1650:
1643:
1640:
1627:
1623:
1617:
1614:
1609:
1605:
1601:
1594:
1591:
1585:
1583:
1581:
1577:
1564:
1560:
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1547:
1544:
1538:
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1530:
1524:
1521:
1505:
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1495:
1493:
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1487:
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1479:
1474:
1471:
1465:
1462:
1456:
1453:
1447:
1444:
1438:
1435:
1429:
1427:
1423:
1417:
1414:
1408:
1405:
1399:
1397:
1393:
1380:
1376:
1370:
1367:
1354:
1350:
1343:
1340:
1327:
1323:
1317:
1314:
1309:
1308:Aviation Week
1302:
1300:
1296:
1283:
1279:
1273:
1270:
1258:
1257:Defense Daily
1254:
1247:
1244:
1238:
1235:
1219:
1212:
1205:
1203:
1199:
1195:
1190:
1187:
1181:
1179:
1175:
1162:
1158:
1152:
1149:
1136:
1132:
1126:
1123:
1117:
1115:
1113:
1109:
1097:
1093:
1086:
1083:
1071:
1067:
1060:
1057:
1054:Jackson 2007.
1051:
1049:
1047:
1045:
1043:
1041:
1039:
1037:
1035:
1031:
1025:
1022:
1016:
1014:
1012:
1008:
1002:
1000:
998:
996:
992:
985:
980:
978:
974:
971:
969:
966:
964:
961:
960:
959:
958:
952:
949:
948:
944:
933:
928:
923:
921:
920:Longbow radar
918:Miniaturised
917:
916:
915:
912:
904:
901:
897:
893:
889:
886:
885:rotary cannon
883:three-barrel
882:
879:with a 20 mm
878:
874:
873:
872:
869:
861:
859:
855:
853:
849:
848:Disk loading:
846:
845:
835:
834:
833:
832:
831:
830:
829:
828:
824:
821:
811:
808:
805:
802:
799:
796:
793:
790:
787:
786:Combat range:
784:
781:
778:
777:
767:
766:
765:
764:
763:
762:
761:
760:
756:
755:Cruise speed:
753:
752:
742:
741:
740:
739:
738:
737:
736:
735:
731:
728:
727:
726:
724:
716:
712:
708:
705:
702:
699:
696:
693:
690:
687:
683:
680:
668:
665:
662:
659:
656:
655:Gross weight:
653:
650:
649:Empty weight:
647:
644:
641:
638:
635:
632:
629:
626:
623:
622:
621:
619:
614:
612:
604:
597:
595:
593:
589:
585:
581:
573:
571:
568:
566:
562:
559:
555:
552:
547:
542:
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536:
532:
529:
523:
521:
517:
513:
509:
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501:
497:
493:
488:
486:
482:
478:
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471:
467:
463:
459:
450:
443:
441:
439:
435:
431:
426:
422:
419:
415:
410:
408:
404:
398:
396:
392:
388:
382:
380:
376:
371:
369:
365:
361:
356:
355:anti-aircraft
347:
345:
341:
338:
334:
330:
326:
321:
319:
315:
312:
303:
296:
294:
292:
291:maiden flight
288:
283:
279:
275:
271:
266:
264:
260:
256:
252:
248:
244:
240:
236:
232:
228:
224:
220:
212:
207:
205:
203:
197:
195:
189:
187:
183:
179:
178:rotary cannon
175:
170:
166:
162:
158:
153:
151:
147:
143:
139:
135:
125:
121:
116:
112:
108:
105:
102:
98:
94:
90:
87:
83:
80:
78:
74:
71:United States
70:
66:
63:
59:
55:
50:
43:
38:
33:
30:
19:
3828:
3821:Not assigned
3637:
3101:1962–present
2965:
2887:CH-37 Mojave
2882:H-34 Choctaw
2836:Helicopters
2606:Helicopters
2261:AH-64 Apache
2210:Chinook (UK)
2149:
2142:, June 2001.
2137:
2085:
2058:
2038:
2018:
2006:. Retrieved
2002:the original
1989:
1983:
1959:
1946:. Retrieved
1934:
1928:
1912:. Retrieved
1908:the original
1895:
1889:
1864:
1842:
1822:
1801:
1780:
1757:
1737:
1725:. Retrieved
1713:
1707:
1696:Bibliography
1681:. Retrieved
1677:
1667:
1648:
1642:
1630:. Retrieved
1626:the original
1616:
1599:
1593:
1567:. Retrieved
1556:
1546:
1523:
1511:. Retrieved
1504:the original
1473:
1464:
1455:
1446:
1437:
1416:
1407:
1383:. Retrieved
1379:the original
1369:
1357:. Retrieved
1342:
1330:. Retrieved
1326:the original
1316:
1307:
1286:. Retrieved
1272:
1262:10 September
1260:. Retrieved
1256:
1246:
1237:
1225:. Retrieved
1218:the original
1193:
1189:
1165:. Retrieved
1161:the original
1151:
1139:. Retrieved
1135:the original
1125:
1099:. Retrieved
1095:
1085:
1073:. Retrieved
1069:
1059:
1024:
977:
956:
955:
910:
908:
867:
865:
856:
851:
847:
822:
809:
803:
797:
792:Ferry range:
791:
785:
779:
754:
729:
722:
720:
714:
710:
706:
700:
694:
681:
666:
660:
654:
648:
642:
636:
630:
624:
617:
615:
610:
609:
592:Fort Novosel
583:
579:
577:
569:
543:
524:
489:
466:AH-64 Apache
455:
434:SB-1 Defiant
427:
423:
411:
399:
383:
374:
372:
351:
348:Cancellation
342:
337:night vision
332:
328:
325:empty weight
322:
317:
313:
308:
278:Pennsylvania
274:Philadelphia
267:
262:
258:
216:
198:
190:
174:AH-64 Apache
160:
154:
133:
131:
123:First flight
110:Number built
100:Primary user
77:Manufacturer
29:
3800:CH-92/VH-92
3551:HH-53/MH-53
3109:(1941–1962)
3084:Tri-Service
2924:CH-54 Tarhe
2235:V-22 Osprey
1196:2000, p. 6.
968:Bell OH-58X
723:Performance
682:Powerplant:
594:, Alabama.
528:fly-by-wire
485:ferry range
462:Vietnam War
414:Fred Brooks
379:Bell ARH-70
208:Development
3835:Categories
3080:helicopter
981:References
858:Power/mass
798:Endurance:
689:turboshaft
473:turboshaft
470:LHTEC T800
407:Kosovo War
3737:CH-3/HH-3
3099:U.S. Navy
3095:U.S. Army
2275:MELB/AH-6
2220:Model 360
1998:0015-3710
1948:28 August
1943:0015-3710
1904:0015-3710
1727:5 October
1722:0015-3710
1608:217303908
1227:28 August
1101:20 August
1075:20 August
986:Citations
810:g limits:
611:Data from
541:(HIDSS).
516:composite
3017:Raider X
2319:aircraft
2317:Sikorsky
2125:Archived
1779:(2010).
1683:16 April
1604:ProQuest
1563:Archived
1482:Archived
1353:Archived
1282:Archived
929:See also
911:Avionics
900:Hydra 70
868:Armament
508:infrared
418:Atlantic
387:Cold War
364:Sikorsky
353:current
247:Sikorsky
182:missiles
169:Sikorsky
3086:systems
3007:Firefly
2954:H-60J/K
2850:HH-3E/F
2695:S-61L/N
2256:ACH-47A
1632:18 July
1569:4 March
852:YRAH-66
643:Height:
631:Length:
584:95-0001
580:94-0327
500:faceted
412:Author
333:95-0001
329:94-0327
318:95-0001
314:94-0327
186:rockets
138:stealth
118:History
3032:XBLR-3
3012:Raider
2582:XBLR-3
2449:S-29-A
2215:BV-347
2092:
2065:
2046:
2025:
2008:8 July
1996:
1967:
1941:
1914:8 July
1902:
1873:
1850:
1829:
1810:
1787:
1765:
1744:
1720:
1655:
1606:
1513:8 July
1385:8 July
1359:8 July
1332:8 July
1288:8 July
1167:8 July
1141:8 July
780:Range:
637:Width:
444:Design
368:Boeing
243:Boeing
233:, and
165:Boeing
92:Status
3807:H-139
3698:J/T/W
3606:MH-60
3601:HH-60
3596:SH-60
3591:UH-60
3587:H-60
3538:CH-53
3534:H-53
3447:H-13J
3442:H-13F
3249:H-13J
2959:VH-60
2917:MH-53
2892:XH-39
2827:S-434
2822:S-333
2817:S-300
2812:S-103
2807:S-102
2802:S-100
2700:S-61R
2524:VS-44
1507:(PDF)
1221:(PDF)
1214:(PDF)
881:XM301
711:root:
678:tanks
625:Crew:
546:XM301
520:blade
518:five-
235:OH-58
3795:H-92
3790:H-90
3772:OH-6
3767:MH-6
3762:AH-6
3758:H-6
3742:SH-3
3733:H-3
3707:UH-1
3694:AH-1
3673:H-73
3668:H-72
3663:H-71
3658:H-70
3653:H-69
3648:H-68
3643:H-67
3638:H-66
3633:H-65
3628:H-64
3623:H-63
3618:H-62
3613:H-61
3583:H-59
3578:H-58
3573:H-57
3568:H-56
3563:H-55
3558:H-54
3530:H-52
3525:H-51
3520:H-50
3515:H-49
3510:H-48
3505:H-47
3500:H-46
3484:H-43
3479:H-37
3474:H-34
3469:H-25
3464:H-23
3459:H-21
3454:H-19
3437:H-13
3406:H-45
3401:H-44
3396:H-43
3391:H-42
3386:H-41
3381:H-40
3376:H-39
3371:H-38
3366:H-37
3361:H-36
3356:H-35
3351:H-34
3346:H-33
3341:H-32
3336:H-31
3331:H-30
3326:H-29
3321:H-28
3316:H-27
3311:H-26
3306:H-25
3301:H-24
3296:H-23
3291:H-22
3286:H-21
3281:H-20
3276:H-19
3271:H-18
3266:H-17
3261:H-16
3256:H-15
3244:H-13
3239:H-12
3234:H-11
3229:H-10
3198:R-16
3193:R-15
3188:R-14
3183:R-13
3178:R-12
3173:R-11
3168:R-10
3037:XV-2
3022:SB-1
2872:H-18
2797:S-97
2792:S-95
2787:S-92
2782:S-80
2777:S-76
2772:S-75
2767:S-74
2762:S-73
2757:S-72
2752:S-71
2747:S-70
2742:S-69
2737:S-68
2732:S-67
2727:S-66
2722:S-65
2717:S-64
2712:S-63
2707:S-62
2690:S-61
2685:S-60
2680:S-59
2675:S-58
2670:S-57
2665:S-56
2660:S-55
2655:S-54
2650:S-53
2645:S-52
2640:S-51
2635:S-50
2630:S-49
2625:S-48
2620:S-47
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