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Sikorsky R-4

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302: 416: 541: 170: 583: 781: 657: 249:' series for "Rotorcraft". The XR-4 first flew on 14 January 1942 and was accepted by the Army on 30 May 1942. The XR-4 exceeded all the previous helicopter endurance altitude and airspeed records that had been set before it. The XR-4 completed a 761 mi (1,225 km) cross-country flight from Bridgeport, Connecticut, to Wright Field, Ohio, set a helicopter peak altitude record of 12,000 ft (3,700 m), while achieving 100 flight hours without a major incident and top airspeed approaching 90 mph (78 kn; 145 km/h) 339:. Despite the high altitude, humidity, and capacity for only a single passenger, Harman rescued a downed liaison aircraft pilot and his three British soldier passengers, two at a time. On 22–23 January 1945, another rescue by the R-4 involved several legs for refueling and navigating through passes between mountains nearly 10,000 feet (3,000 m) tall, to reach a weather station located at an elevation of 4,700 feet (1,400 m). The higher-than-normal altitude required a downhill run of 20 ft (6.1 m) to get airborne. 370:. Carle flew one of his ship's Sikorsky R-4 helicopters and landed near the front lines, much to the amazement of the soldiers, who had never seen a helicopter. The helicopter was not configured to handle stretchers, and they removed a seat and placed the wounded man on the aircraft floor. Carle flew the soldier to the 311th General Field Hospital near Manila. Once word got out of their availability, they were called on again and again. Carle flew seven hours and made six evacuations on the same day. 509: 40: 424: 346:) in the South Pacific. On 23 May 1944, six ships set sail with two R-4s on board each vessel. The ships had been configured as floating repair depots for damaged Army Air Forces aircraft in the South Pacific. When the helicopters were not being used to fly the parts from one location to another, they were enlisted for 401:
The helicopter was difficult to fly. The aircraft's blades were made of wood ribs around a steel spar and covered with doped fabric. The blades were difficult to keep rotating in the same plane and vibrated excessively. The cyclic made continuous small orbits, vibrating continuously. There was no
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in the prototype, and a rotor diameter increased by 1 ft (30 cm). Evaluation of the YR-4A demonstrated a need for further improvements, including moving the tailwheel further aft on the tailboom, venting the exhaust to the side instead of downward, and increasing the fuel capacity by
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reported on Carle's efforts to transport the wounded. They wrote that the "control stick shakes like a jackhammer, and the pilot must hold it tightly at all times. Should he relax for even a minute the plane falls out of control. Pilots of regular planes say it's easy to identify a helicopter
354:, the Fifth Aircraft Repair Unit. From June 15 to July 29, 1945, Carle and five other pilots evacuated 75 to 80 wounded soldiers, one or two at a time, from the highlands northeast of Manila. They were the second group of helicopter pilots after Lieutenant 358:
to evacuate wounded via helicopter during World War II. Unlike Harman, they were targeted by Japanese soldiers who tried to shoot them down with machine guns. Their six-week effort constitutes the largest combat helicopter operation before the Korean War.
2199: 327:, U.S. Coast Guard Commander Frank Erickson flew the first U.S. helicopter rescue in a Sikorsky R-4 carrying life saving blood plasma for the casualties from New York City. On 22–23 April 1944, U.S. Army Lieutenant 281:
On 5 January 1943, the United States Army Air Forces ordered 29 prototypes. The first three were designated YR-4A and used for evaluation testing. The YR-4A benefited from a 180 hp (130 kW)
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5 US gal (4.2 imp gal; 19 L). These and other design changes led to the designation of later prototypes as YR-4B, which were used for service testing and flight training.
623: 1580: 5612: 385:, was the first British military unit to be equipped with the helicopter. Many RAF Hoverfly Mark Is were transferred to the Royal Navy for training and one was used in 1945–46 by 1839: 5067: 4731: 3252: 1616: 490:
UK military designation of the R-4 for the Royal Air Force and Royal Navy; 52 delivered and one later transferred to the Royal Canadian Air Force. 133 were built
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United Aircraft announced on 5 November 1944 that the one hundredth helicopter had been completed, and that the production rate had reached five every six days.
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While the R-4 was being used for rescues in Burma and China, it was also being used to ferry parts between floating Aviation Repair Units (part of
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An R-4B modified as a sesqui-tandem helicopter with an observer's seat aft of the main rotor gearbox for trials. First flown on December 20, 1948.
5604: 4311: 4306: 4286: 4249: 4239: 4234: 4209: 4159: 2184: 262:, fitted with an 80 ft Ă— 40 ft (24 m Ă— 12 m) landing platform, intended to show the USN their work with ship-borne 648:. Supplied under lend-lease, it arrived in Britain in February 1945. It flew with the RAF, later the Royal Navy, until 1951. It was used by the 4339: 4264: 4259: 4254: 4244: 4229: 4224: 4204: 4179: 4174: 4149: 4134: 4124: 4109: 4074: 4054: 4049: 4044: 4034: 4024: 4019: 4009: 3994: 3989: 3984: 3979: 3969: 3964: 3959: 3954: 3949: 3944: 3939: 3929: 3914: 3904: 3899: 3894: 3874: 3869: 3864: 3859: 3849: 3839: 3834: 3829: 3824: 3819: 3814: 3809: 3799: 3794: 3784: 3779: 3769: 3764: 3759: 3754: 3744: 3739: 3734: 3729: 3719: 3714: 3699: 3694: 3689: 3659: 3644: 3634: 3569: 3549: 3544: 3524: 3519: 3504: 3489: 3479: 3469: 3459: 3449: 3434: 3429: 3424: 3414: 3404: 3394: 3364: 3359: 3354: 3349: 3339: 3334: 3329: 3309: 3304: 3187: 3182: 3077: 3072: 3067: 3062: 3052: 3047: 1591: 697: 428: 4169: 4029: 4014: 4004: 6110: 4214: 4194: 4164: 4144: 4129: 2231: 6135: 2179: 5498: 2993: 1809: 1297: 712: 336: 6125: 4717: 780: 1361: 4695: 1145: 363: 458:
Version with detailed changes; 27 built for development testing followed by a further batch of 14, seven to US Navy as HNS-1s.
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governor to control rotor speed, and the pilot had to correlate the throttle continuously with collective pitch inputs. The
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RAF Squadrons. A comprehensive record of the movement and equipment of all RAF squadrons and their antecedents since 1912
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with a single, three-bladed main rotor and powered by a radial engine. The R-4 was the world's first large-scale
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200 hp (150 kW) engine; 100 built including 20 for the US Navy and 45 for the Royal Air Force.
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Three YR-4Bs and 22 R-4Bs transferred to the US Navy; three diverted to the United States Coast Guard.
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were carried out in 1944. The British received two of the first eight helicopters built.
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to evacuate two soldiers with head injuries from a spot 35 miles (56 km) east of
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and publicly demonstrated in 1940. The VS-316 was designated the XR-4, under the
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and other mercy missions. Helicopter pilot 2LT Louis Carle was assigned to the
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Sikorsky YR-4B/HNS-1 helicopters is seen in the 30 Ă— 60 full-scale tunnel.
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Sikorsky R-4 page at the National Museum of the United States Air Force
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A History Of Army Aviation: From Its Beginnings To The War On Terror.
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7-cylinder air-cooled radial piston engine, 185 hp (138 kW)
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conducted the first combat rescue by helicopter using a YR-4B in the
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Freeman AAF contains the story of America's first Helicopter School
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180 hp (130 kW) engine with the larger YR-4A-type rotor.
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One prototype Model VS-316A with a crew of two and dual controls,
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On June 15, 1945, the Fifth Air Force received a request from the
2081:(Weapons and Warfare Series). Santa Barbara, CA: ABC-CLIO, 2005. 544:
Royal Air Force Hoverfly I in use by Fairey Aviation in late 1945
2143:. Wright-Patterson AFB, Ohio: Air Force Museum Foundation, 1975. 3002: 2037: 1703:"Airframe Dossier – Sikorsky R-4B Hoverfly, s/n 43-46521 USAAF" 645: 423: 407:
pilot – he has a permanent case of the shakes."
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The Hamlyn Concise Guide to American Aircraft of World War II
1949:(1995 ed.). New York: Military Press. pp. 256–257. 1131:
Associated Press, “Firm Completes Its Hundredth Helicopter”,
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Numerical sequence used by USAAC/USAAF/USAF 1941–present;
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Following the explosion and sinking in January 1944 of
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The VS-316 was developed from the famous experimental
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New-England Air Museum R-4 exhibit Google street view
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Stroud, Gloucestershire, UK: The History Press, 2008
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Helicopters: An Illustrated History of Their Impact
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Aircraft of comparable role, configuration, and era
1042:"Sikorsky R-4B – Canada Aviation and Space Museum" 816:48 ft 1 in (14.66 m) rotors turning 285:engine, compared to the 165 hp (123 kW) 2008: 652:until it was presented to the RAF museum in 1966. 6102: 2195:HELIS.com Sikorsky R-4/HNS-1/Hoverfly I Database 2128:RAF Flying Training and Support Units since 1912 1184: 197:helicopter and the first helicopter used by the 2170:Sikorsky S-47/R-4 page at the Sikorsky Archives 2009:Howard, Lee; Burrow, Mick; Myall, Eric (2011). 1304:. Archived from the original on 31 October 2012 1681:National Museum of the United States Air Force 987:National Museum of the United States Air Force 827:33 ft 8 in (10 m) fuselage only 698:National Museum of the United States Air Force 452:180 hp (130 kW) engine; three built. 442:165 hp (123 kW) engine, became XR-4C 429:National Museum of the United States Air Force 6121:1940s United States military utility aircraft 5492: 4711: 2987: 2225: 1063: 1061: 1362:"S-54 Sesque Tandem Experimental Helicopter" 1193: 779: 2130:, Air-Britain (Historians), England, 2007, 1175: 6116:1940s United States civil utility aircraft 5499: 5485: 4718: 4704: 2994: 2980: 2232: 2218: 1976:Aircraft-Carrying Ships of the Royal Navy. 1380: 1378: 1213: 1058: 992: 914:8,000 ft (2,438 m) in 45 minutes 670:41-18874 – XR-4C on static display at the 2185:Photo gallery of Sikorsky R-4B Hoverfly I 1623:. Smithsonian Institution. Archived from 1209: 1207: 1205: 1001: 976: 737:43-46592 – R-4B on static display at the 713:National Museum of the United States Army 711:43-46521 – R-4B on static display at the 696:43-46506 – R-4B on static display at the 685:43-46503 – R-4B on static display at the 448:Version with larger rotor diameter and a 225:. In British service it was known as the 27:Two-seat military helicopter of the 1940s 5574: 2141:United States Air Force Museum Guidebook 1947:Jane's Fighting aircraft of World War II 1944: 1938: 1895:"Aircraft : R-4 Sikorsky Hover Fly" 1505:"History of Coast Guard Aviation pg. 25" 902:130 mi (210 km, 110 nmi) 896:65 mph (105 km/h, 56 kn) 775: 655: 630:. It was acquired by the Museum in 1983. 539: 422: 414: 300: 168: 5724: 2180:RAF Museum Sikorsky R4 Hoverfly webpage 2054: 1989: 1578: 1469: 1375: 1271:"Lift Yanks out of Luzon by Helicopter" 890:75 mph (121 km/h, 65 kn) 784:3-view line drawing of the Sikorsky R-4 752:39047 – HNS-1 on static display at the 274:. The first deck-landing trials aboard 14: 6103: 2111:Myall, Eric and Ray Sturtivant (ed.). 2092: 1407: 1405: 1403: 1268: 1214:Magazine, Smithsonian; Connor, Roger. 1202: 1099: 1097: 660:R-4B Hoverfly, US Army Aviation Museum 622:43-46565 – R-4B in the storage at the 396: 296: 5480: 4699: 2975: 2239: 2213: 2205:RAF Muesuem document on R-4's history 2031: 1754:"Our Collection – Restoration Hangar" 1454: 1423: 810:1x casualty litter carried externally 726:43-46534 – R-4B under restoration at 640:KL110 – Hoverfly I on display at the 611: 2097:. London: Aerospace Publishing Ltd. 2011:Fleet Air Arm Helicopters since 1943 1581:"Individual History [KL110]" 1078:"Sikorsky Archives | First Delivery" 1022:National Museum of the US Air Force™ 875:1,134 sq ft (105.4 m) 352:Brigadier General Clinton W. Russell 173:In this image taken in 1944, one of 1926:. U.S. Department of Transportation 1400: 1295: 1094: 389:to develop rotor systems for their 24: 6111:United States military helicopters 2150:Bloomington, IN: Iuniverse, 2005. 1994:. New York: Crown Publishers Inc. 1814:United States Army Aviation Museum 1534:Canadian Aviation and Space Museum 841:12 ft 5 in (3.78 m) 763:c/n 95 – R-4B in storage with the 739:United States Army Aviation Museum 624:Canadian Aviation and Space Museum 25: 6152: 6136:Single-engined piston helicopters 4730:designations, Army/Air Force and 2163: 1647:"Sikorsky R-4B (S-47) 'Hoverfly'" 1411:Howard/Burrow/Myall 2011, pp. 3-9 1172:, Air Force Times, 22 March 2004. 754:National Museum of Naval Aviation 650:College of Aeronautics, Cranfield 474:Prototype XR-4 re-engined with a 313:, Sikorsky Helicopter HNS-1 C.G. 5510:helicopter designations pre-1962 1816:. 2 January 2003. Archived from 581: 507: 377:service, the R-4 was called the 38: 6126:1940s United States helicopters 5812:Helicopter, Transport 1944-1962 1945:Bridgman, Leonard, ed. (1989). 1924:Federal Aviation Administration 1920:"FAA Registry [N4605V]" 1912: 1887: 1862: 1832: 1802: 1776: 1746: 1728:"Hanging around in Ft. Belvoir" 1720: 1695: 1669: 1639: 1609: 1572: 1547: 1522: 1497: 1475: 1429: 1354: 1330: 1289: 1262: 1233: 1162: 1138: 1125: 1844:National Naval Aviation Museum 1298:"Sikorsky R-4B Hoverfly (HNS)" 1269:Veysey, Arthur (21 Jun 1945). 1116: 1070: 1034: 1010: 266:. After her loss in 1942 to a 232: 13: 1: 5988:Helicopter, Utility 1950-1962 5747:Helicopter, Trainer 1948-1962 2040:: Putnam Aeronautical Books. 1621:National Air and Space Museum 964: 853:2,540 lb (1,152 kg) 676:National Air and Space Museum 642:Royal Air Force Museum London 596:United States Army Air Forces 247:United States Army Air Forces 199:United States Army Air Forces 96:United States Army Air Forces 6141:Aircraft first flown in 1942 5905:Helicopter, Utility pre-1949 5718:Helicopter, Trainer pre-1948 4745:1948–1956 and 1962–present; 2034:Westland Aircraft since 1915 1133:The San Bernardino Daily Sun 908:8,000 ft (2,400 m) 500: 7: 918: 847:2,011 lb (912 kg) 672:Steven F. Udvar-Hazy Center 410: 283:Warner R-550-1 Super Scarab 10: 6157: 5516:Helicopter, Anti-submarine 1555:"Sikorsky R-4B Hoverfly 1" 1437:"Helicopters for training" 1388:. globalsecurity.org. 2014 1338:"Sikorsky R-4B Hoverfly 1" 1302:www.fleetairarmarchive.net 989:. Retrieved: 25 July 2016. 691:Windsor Locks, Connecticut 562:Helicopter Training Flight 464:Production version with a 305:Comdr. Frank A. Erickson, 6071: 6053: 6035: 6017: 5994: 5987: 5965: 5947: 5929: 5911: 5904: 5872: 5854: 5836: 5818: 5811: 5789: 5771: 5753: 5746: 5717: 5675: 5657: 5639: 5621: 5603: 5596: 5567: 5540: 5522: 5515: 5467: 5430: 5329: 5140: 5077: 5066: 4854: 4763: 4754: 4739: 4633: 4597: 4590: 4565: 4544: 4508: 4415: 4327: 4320: 3018: 2918: 2759: 2529: 2461: 2248: 1322:: CS1 maint: unfit URL ( 1190:Williams 2005, pp. 30–31. 1150:United States Coast Guard 1146:"Sikorsky HNS-1 Hoverfly" 601:United States Coast Guard 550:Royal Naval Flying School 337:China-Burma-India theater 270:, she was replaced by SS 207:United States Coast Guard 175:Langley Research Center's 157: 147: 139: 131: 123: 118: 110: 100:United States Coast Guard 91: 79: 67: 57: 52: 37: 32: 1810:"Rotary Wing Collection" 1784:"Sikorsky R‑4B Hoverfly" 1677:"Sikorsky R-4B Hoverfly" 1579:Simpson, Andrew (2007). 1082:www.sikorskyarchives.com 1018:"Sikorsky R-4B Hoverfly" 983:"Sikorsky R-4B Hoverfly" 704:. It was donated by the 241:helicopter, invented by 5597:Helicopter, Observation 4755:Army/Air Force sequence 2762:(military designations) 2464:(military designations) 2146:Williams, Dr. James W. 1617:"Vought-Sikorsky XR-4C" 1460:Sturtivant 2007, p. 203 1111:: 643, 12 December 1946 795:General characteristics 765:Commemorative Air Force 2532:(company designations) 2251:(company designations) 2093:Mondey, David (1996). 1990:Gunston, Bill (1986). 1651:New England Air Museum 1588:Royal Air Force Museum 1559:Royal Air Force Museum 1485:. sikorskyarchives.com 930:Vought-Sikorsky VS-300 869:38 ft (12 m) 785: 721:Mount Vernon, Virginia 706:University of Illinois 687:New England Air Museum 661: 545: 537:771 Naval Air Squadron 532:705 Naval Air Squadron 527:703 Naval Air Squadron 431: 420: 364:38th Infantry Division 333:1st Air Commando Group 317: 178: 152:Vought-Sikorsky VS-300 2919:Experimental aircraft 2831:CH-53E Super Stallion 2055:Jefford, C G (1988). 1483:"S-47/R-4 Helicopter" 1199:Williams 2005, p. 31. 947:Focke-Achgelis Fa 223 783: 776:Specifications (R-4B) 659: 543: 426: 418: 304: 189:that was designed by 172: 5068:Tri-Service sequence 4855:Prefix H-, 1948–1962 4764:Prefix R-, 1941–1948 2836:CH-53K King Stallion 2462:Fixed-wing aircraft 2249:Fixed-wing aircraft 2077:McGowen, Stanley S. 2017:Historians Limited. 1732:Fairfax County Times 1220:Smithsonian Magazine 1216:"Medevac From Luzon" 1181:McGowen 2005, p. 34. 1122:Cocker 2008, p. 114. 1067:McGowen 2005, p. 29. 998:Gunston 2005, p. 88. 867:Main rotor diameter: 572:No. 657 Squadron RAF 567:No. 529 Squadron RAF 344:Operation Ivory Soap 44:A Sikorsky R-4 in a 5078:1962 redesignations 2363:S-22/23/24/25/26/27 1597:on 23 December 2010 1007:Mondey 2005, p. 29. 924:Related development 680:Chantilly, Virginia 397:Piloting difficulty 297:Operational history 53:General information 5330:Alternate sequence 2826:CH-53 Sea Stallion 1992:American Warplanes 1899:CAF Operations.org 1850:on 3 December 2018 1657:on 6 November 2020 1046:ingeniumcanada.org 786: 758:Pensacola, Florida 747:Daleville, Alabama 662: 612:Surviving aircraft 606:United States Navy 546: 432: 421: 348:medical evacuation 318: 203:United States Navy 179: 6131:Sikorsky aircraft 6098: 6097: 6094: 6093: 5983: 5982: 5900: 5899: 5807: 5806: 5742: 5741: 5713: 5712: 5592: 5591: 5568:Helicopter, Crane 5563: 5562: 5474: 5473: 5463: 5462: 5062: 5061: 4693: 4692: 4689: 4688: 4586: 4585: 2969: 2968: 2156:978-0-595-67396-4 2126:Sturtivant, Ray. 2113:The Hoverfly File 2087:978-1-85109-468-4 2032:James, D (1991). 2024:978-0-85130-304-8 1984:978-0-7524-4633-2 1974:Cocker, Maurice. 1790:. 5 February 2017 1734:. 9 February 2019 1296:Drucker, Graham. 1277:. Chicago Tribune 957:Platt-LePage XR-1 912:Time to altitude: 732:Chino, California 427:Sikorsky R-4B at 254:British Admiralty 167: 166: 132:Introduction date 74:Sikorsky Aircraft 18:Sikorsky Hoverfly 16:(Redirected from 6148: 5992: 5991: 5909: 5908: 5816: 5815: 5751: 5750: 5722: 5721: 5601: 5600: 5572: 5571: 5520: 5519: 5501: 5494: 5487: 5478: 5477: 5302: 5141:New designations 5075: 5074: 5055: 5050: 5020: 5010: 4761: 4760: 4720: 4713: 4706: 4697: 4696: 4595: 4594: 4325: 4324: 2996: 2989: 2982: 2973: 2972: 2926:Cypher/Cypher II 2873:SH-60B/F Seahawk 2868:MH-60R/S Seahawk 2858:HH-60G Pave Hawk 2853:UH-60 Black Hawk 2234: 2227: 2220: 2211: 2210: 2108: 2074: 2051: 2028: 2005: 1961: 1960: 1942: 1936: 1935: 1933: 1931: 1916: 1910: 1909: 1907: 1905: 1891: 1885: 1884: 1882: 1880: 1866: 1860: 1859: 1857: 1855: 1846:. Archived from 1836: 1830: 1829: 1827: 1825: 1806: 1800: 1799: 1797: 1795: 1788:Yanks Air Museum 1780: 1774: 1773: 1771: 1769: 1760:. Archived from 1758:Yanks Air Museum 1750: 1744: 1743: 1741: 1739: 1724: 1718: 1717: 1715: 1713: 1699: 1693: 1692: 1690: 1688: 1673: 1667: 1666: 1664: 1662: 1653:. Archived from 1643: 1637: 1636: 1634: 1632: 1627:on 28 March 2021 1613: 1607: 1606: 1604: 1602: 1596: 1590:. Archived from 1585: 1576: 1570: 1569: 1567: 1565: 1551: 1545: 1544: 1542: 1540: 1526: 1520: 1519: 1517: 1515: 1509: 1501: 1495: 1494: 1492: 1490: 1479: 1473: 1467: 1461: 1458: 1452: 1451: 1450: 1448: 1433: 1427: 1421: 1412: 1409: 1398: 1397: 1395: 1393: 1382: 1373: 1372: 1370: 1368: 1358: 1352: 1351: 1349: 1348: 1334: 1328: 1327: 1321: 1313: 1311: 1309: 1293: 1287: 1286: 1284: 1282: 1266: 1260: 1259: 1257: 1255: 1249:flightglobal.com 1237: 1231: 1230: 1228: 1226: 1211: 1200: 1197: 1191: 1188: 1182: 1179: 1173: 1166: 1160: 1159: 1157: 1156: 1142: 1136: 1129: 1123: 1120: 1114: 1112: 1101: 1092: 1091: 1089: 1088: 1074: 1068: 1065: 1056: 1055: 1053: 1052: 1038: 1032: 1031: 1029: 1028: 1014: 1008: 1005: 999: 996: 990: 980: 906:Service ceiling: 883: 873:Main rotor area: 797: 728:Yanks Air Museum 587: 585: 584: 513: 511: 510: 419:YR-4B at Langley 143:January 14, 1942 42: 30: 29: 21: 6156: 6155: 6151: 6150: 6149: 6147: 6146: 6145: 6101: 6100: 6099: 6090: 6067: 6049: 6031: 6013: 5979: 5961: 5943: 5925: 5896: 5868: 5850: 5832: 5803: 5785: 5767: 5738: 5709: 5671: 5653: 5635: 5617: 5588: 5559: 5536: 5511: 5505: 5475: 5470: 5459: 5426: 5325: 5300: 5136: 5070: 5058: 5053: 5048: 5018: 5008: 4850: 4756: 4750: 4735: 4724: 4694: 4685: 4661:Flying Flapjack 4646:Crusader (I/II) 4629: 4582: 4561: 4540: 4504: 4411: 4316: 3020: 3014: 3007:Vought-Sikorsky 3000: 2970: 2965: 2914: 2900:CH-124 Sea King 2890:RAH-66 Comanche 2821:HH-52A Seaguard 2761: 2755: 2531: 2525: 2463: 2457: 2250: 2244: 2238: 2166: 2161: 2105: 2071: 2048: 2025: 2002: 1965: 1964: 1957: 1943: 1939: 1929: 1927: 1918: 1917: 1913: 1903: 1901: 1893: 1892: 1888: 1878: 1876: 1868: 1867: 1863: 1853: 1851: 1838: 1837: 1833: 1823: 1821: 1820:on 13 July 2012 1808: 1807: 1803: 1793: 1791: 1782: 1781: 1777: 1767: 1765: 1764:on 18 July 2011 1752: 1751: 1747: 1737: 1735: 1726: 1725: 1721: 1711: 1709: 1701: 1700: 1696: 1686: 1684: 1683:. 20 April 2015 1675: 1674: 1670: 1660: 1658: 1645: 1644: 1640: 1630: 1628: 1615: 1614: 1610: 1600: 1598: 1594: 1583: 1577: 1573: 1563: 1561: 1553: 1552: 1548: 1538: 1536: 1530:"Sikorsky R-4B" 1528: 1527: 1523: 1513: 1511: 1507: 1503: 1502: 1498: 1488: 1486: 1481: 1480: 1476: 1468: 1464: 1459: 1455: 1446: 1444: 1435: 1434: 1430: 1422: 1415: 1410: 1401: 1391: 1389: 1384: 1383: 1376: 1366: 1364: 1360: 1359: 1355: 1346: 1344: 1336: 1335: 1331: 1315: 1314: 1307: 1305: 1294: 1290: 1280: 1278: 1267: 1263: 1253: 1251: 1239: 1238: 1234: 1224: 1222: 1212: 1203: 1198: 1194: 1189: 1185: 1180: 1176: 1170:History in Blue 1167: 1163: 1154: 1152: 1144: 1143: 1139: 1130: 1126: 1121: 1117: 1103: 1102: 1095: 1086: 1084: 1076: 1075: 1071: 1066: 1059: 1050: 1048: 1040: 1039: 1035: 1026: 1024: 1016: 1015: 1011: 1006: 1002: 997: 993: 981: 977: 967: 952:Flettner Fl 282 921: 879: 793: 778: 628:Ottawa, Ontario 614: 582: 580: 557:Royal Air Force 508: 506: 503: 413: 404:Chicago Tribune 399: 387:Fairey Aviation 375:Royal Air Force 299: 235: 215:Royal Air Force 106: 104:Royal Air Force 102: 87: 48: 28: 23: 22: 15: 12: 11: 5: 6154: 6144: 6143: 6138: 6133: 6128: 6123: 6118: 6113: 6096: 6095: 6092: 6091: 6089: 6088: 6083: 6077: 6075: 6069: 6068: 6066: 6065: 6059: 6057: 6051: 6050: 6048: 6047: 6041: 6039: 6033: 6032: 6030: 6029: 6023: 6021: 6015: 6014: 6012: 6011: 6006: 6000: 5998: 5989: 5985: 5984: 5981: 5980: 5978: 5977: 5971: 5969: 5963: 5962: 5960: 5959: 5953: 5951: 5945: 5944: 5942: 5941: 5935: 5933: 5927: 5926: 5924: 5923: 5917: 5915: 5906: 5902: 5901: 5898: 5897: 5895: 5894: 5889: 5884: 5878: 5876: 5870: 5869: 5867: 5866: 5860: 5858: 5852: 5851: 5849: 5848: 5842: 5840: 5834: 5833: 5831: 5830: 5824: 5822: 5813: 5809: 5808: 5805: 5804: 5802: 5801: 5795: 5793: 5787: 5786: 5784: 5783: 5777: 5775: 5769: 5768: 5766: 5765: 5759: 5757: 5748: 5744: 5743: 5740: 5739: 5737: 5736: 5730: 5728: 5719: 5715: 5714: 5711: 5710: 5708: 5707: 5702: 5697: 5692: 5687: 5681: 5679: 5673: 5672: 5670: 5669: 5663: 5661: 5655: 5654: 5652: 5651: 5645: 5643: 5637: 5636: 5634: 5633: 5627: 5625: 5619: 5618: 5616: 5615: 5609: 5607: 5598: 5594: 5593: 5590: 5589: 5587: 5586: 5580: 5578: 5569: 5565: 5564: 5561: 5560: 5558: 5557: 5552: 5546: 5544: 5538: 5537: 5535: 5534: 5528: 5526: 5517: 5513: 5512: 5504: 5503: 5496: 5489: 5481: 5472: 5471: 5468: 5465: 5464: 5461: 5460: 5458: 5457: 5452: 5451: 5450: 5440: 5434: 5432: 5431:Non-sequential 5428: 5427: 5425: 5424: 5423: 5422: 5417: 5412: 5404: 5399: 5394: 5393: 5392: 5387: 5379: 5378: 5377: 5367: 5366: 5365: 5352: 5333: 5331: 5327: 5326: 5324: 5323: 5318: 5313: 5308: 5303: 5298: 5293: 5288: 5283: 5278: 5273: 5268: 5263: 5258: 5257: 5256: 5251: 5246: 5241: 5233: 5228: 5223: 5218: 5213: 5208: 5203: 5202: 5201: 5196: 5180: 5175: 5170: 5165: 5160: 5155: 5150: 5144: 5142: 5138: 5137: 5135: 5134: 5129: 5124: 5119: 5114: 5109: 5104: 5099: 5098: 5097: 5092: 5081: 5079: 5072: 5071:(1962–present) 5064: 5063: 5060: 5059: 5057: 5056: 5051: 5046: 5041: 5036: 5031: 5026: 5021: 5016: 5011: 5006: 5001: 4996: 4991: 4986: 4981: 4976: 4971: 4966: 4961: 4956: 4951: 4946: 4941: 4936: 4931: 4926: 4921: 4916: 4911: 4906: 4901: 4900: 4899: 4889: 4884: 4879: 4874: 4869: 4864: 4858: 4856: 4852: 4851: 4849: 4848: 4843: 4838: 4833: 4828: 4823: 4818: 4813: 4808: 4803: 4798: 4793: 4788: 4783: 4778: 4773: 4767: 4765: 4758: 4752: 4751: 4740: 4737: 4736: 4726:United States 4723: 4722: 4715: 4708: 4700: 4691: 4690: 4687: 4686: 4684: 4683: 4678: 4673: 4668: 4663: 4658: 4653: 4648: 4643: 4637: 4635: 4631: 4630: 4628: 4627: 4622: 4617: 4615:Corsair Junior 4612: 4607: 4601: 4599: 4592: 4588: 4587: 4584: 4583: 4581: 4580: 4575: 4569: 4567: 4563: 4562: 4560: 4559: 4554: 4548: 4546: 4542: 4541: 4539: 4538: 4533: 4528: 4523: 4518: 4512: 4510: 4506: 4505: 4503: 4502: 4501: 4500: 4490: 4485: 4480: 4475: 4470: 4465: 4460: 4455: 4450: 4445: 4440: 4435: 4430: 4425: 4419: 4417: 4416:Scout / Attack 4413: 4412: 4410: 4409: 4404: 4399: 4398: 4397: 4387: 4382: 4377: 4372: 4367: 4362: 4357: 4352: 4347: 4342: 4337: 4335:VE-7/VE-8/VE-9 4331: 4329: 4322: 4318: 4317: 4315: 4314: 4309: 4304: 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3472: 3467: 3462: 3457: 3452: 3447: 3442: 3437: 3432: 3427: 3422: 3417: 3412: 3407: 3402: 3397: 3392: 3387: 3382: 3377: 3372: 3367: 3362: 3357: 3352: 3347: 3342: 3337: 3332: 3327: 3322: 3317: 3312: 3307: 3302: 3297: 3292: 3287: 3282: 3277: 3276: 3275: 3265: 3260: 3255: 3250: 3245: 3240: 3235: 3230: 3225: 3220: 3215: 3210: 3205: 3200: 3195: 3190: 3185: 3180: 3175: 3170: 3165: 3160: 3155: 3150: 3145: 3140: 3135: 3130: 3125: 3120: 3115: 3110: 3105: 3100: 3095: 3090: 3085: 3080: 3075: 3070: 3065: 3060: 3055: 3050: 3045: 3040: 3035: 3030: 3024: 3022: 3016: 3015: 2999: 2998: 2991: 2984: 2976: 2967: 2966: 2964: 2963: 2958: 2953: 2948: 2943: 2938: 2933: 2928: 2922: 2920: 2916: 2915: 2913: 2912: 2907: 2905:CH-148 Cyclone 2902: 2897: 2892: 2887: 2886: 2885: 2880: 2875: 2870: 2865: 2860: 2850: 2845: 2844: 2843: 2838: 2833: 2823: 2818: 2813: 2808: 2803: 2801:H-19 Chickasaw 2798: 2793: 2788: 2783: 2778: 2777: 2776: 2765: 2763: 2757: 2756: 2754: 2753: 2748: 2743: 2738: 2733: 2728: 2723: 2718: 2713: 2708: 2703: 2698: 2693: 2688: 2683: 2678: 2673: 2668: 2663: 2658: 2653: 2648: 2643: 2638: 2633: 2628: 2627: 2626: 2621: 2611: 2606: 2601: 2596: 2591: 2586: 2581: 2576: 2571: 2566: 2561: 2556: 2551: 2546: 2541: 2535: 2533: 2527: 2526: 2524: 2523: 2518: 2513: 2508: 2503: 2498: 2493: 2488: 2483: 2478: 2473: 2467: 2465: 2459: 2458: 2456: 2455: 2450: 2445: 2440: 2435: 2430: 2425: 2420: 2415: 2410: 2405: 2400: 2395: 2390: 2385: 2380: 2375: 2370: 2365: 2360: 2355: 2350: 2345: 2340: 2335: 2330: 2325: 2320: 2315: 2310: 2305: 2300: 2295: 2290: 2285: 2280: 2275: 2270: 2265: 2260: 2254: 2252: 2246: 2245: 2237: 2236: 2229: 2222: 2214: 2208: 2207: 2202: 2197: 2192: 2187: 2182: 2177: 2172: 2165: 2164:External links 2162: 2160: 2159: 2144: 2138: 2124: 2109: 2103: 2090: 2075: 2069: 2052: 2046: 2029: 2023: 2006: 2000: 1987: 1971: 1970: 1969: 1963: 1962: 1955: 1937: 1911: 1886: 1874:Aerial Visuals 1861: 1840:"HNS Hoverfly" 1831: 1801: 1775: 1745: 1719: 1707:Aerial Visuals 1694: 1668: 1638: 1608: 1571: 1546: 1521: 1496: 1474: 1472:, p. 135. 1462: 1453: 1428: 1426:, p. 306. 1413: 1399: 1374: 1353: 1329: 1288: 1275:Newspapers.com 1261: 1232: 1201: 1192: 1183: 1174: 1168:Dorr, Robert. 1161: 1137: 1124: 1115: 1093: 1069: 1057: 1033: 1009: 1000: 991: 974: 973: 972: 971: 966: 963: 960: 959: 954: 949: 938: 937: 932: 920: 917: 916: 915: 909: 903: 897: 891: 888:Maximum speed: 877: 876: 870: 864: 861:Warner R-550-1 854: 848: 842: 835: 834: 833: 832: 831: 830: 829: 828: 818: 817: 811: 805: 777: 774: 773: 772: 761: 750: 735: 724: 709: 694: 683: 667: 666: 654: 653: 637: 636: 635:United Kingdom 632: 631: 619: 618: 613: 610: 609: 608: 603: 598: 592: 591: 577: 576: 575: 574: 569: 564: 554: 553: 552: 547: 534: 529: 518: 517: 515:United Kingdom 502: 499: 498: 497: 494: 491: 488: 485: 482: 479: 476:Warner R-550-1 472: 469: 466:Warner R-550-3 462: 459: 456: 453: 450:Warner R-550-1 446: 443: 440:Warner R-500-3 436: 412: 409: 398: 395: 298: 295: 287:Warner R-500-3 234: 231: 223:Sikorsky HNS-1 211:United Kingdom 185:is a two-seat 165: 164: 159: 158:Developed into 155: 154: 149: 148:Developed from 145: 144: 141: 137: 136: 135:5 January 1943 133: 129: 128: 125: 121: 120: 116: 115: 112: 108: 107: 98: 93: 89: 88: 83: 81: 77: 76: 71: 65: 64: 59: 55: 54: 50: 49: 43: 35: 34: 33:R-4 / Hoverfly 26: 9: 6: 4: 3: 2: 6153: 6142: 6139: 6137: 6134: 6132: 6129: 6127: 6124: 6122: 6119: 6117: 6114: 6112: 6109: 6108: 6106: 6087: 6084: 6082: 6079: 6078: 6076: 6074: 6070: 6064: 6061: 6060: 6058: 6056: 6052: 6046: 6043: 6042: 6040: 6038: 6034: 6028: 6025: 6024: 6022: 6020: 6016: 6010: 6007: 6005: 6002: 6001: 5999: 5997: 5993: 5990: 5986: 5976: 5973: 5972: 5970: 5968: 5964: 5958: 5955: 5954: 5952: 5950: 5946: 5940: 5937: 5936: 5934: 5932: 5928: 5922: 5919: 5918: 5916: 5914: 5910: 5907: 5903: 5893: 5890: 5888: 5885: 5883: 5880: 5879: 5877: 5875: 5871: 5865: 5862: 5861: 5859: 5857: 5853: 5847: 5844: 5843: 5841: 5839: 5835: 5829: 5826: 5825: 5823: 5821: 5820:Boeing Vertol 5817: 5814: 5810: 5800: 5797: 5796: 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2687: 2684: 2682: 2679: 2677: 2674: 2672: 2669: 2667: 2664: 2662: 2659: 2657: 2654: 2652: 2649: 2647: 2644: 2642: 2639: 2637: 2634: 2632: 2629: 2625: 2622: 2620: 2617: 2616: 2615: 2612: 2610: 2607: 2605: 2602: 2600: 2597: 2595: 2592: 2590: 2587: 2585: 2582: 2580: 2577: 2575: 2572: 2570: 2567: 2565: 2562: 2560: 2557: 2555: 2552: 2550: 2547: 2545: 2542: 2540: 2539:VS-300 (S-46) 2537: 2536: 2534: 2528: 2522: 2519: 2517: 2514: 2512: 2509: 2507: 2504: 2502: 2499: 2497: 2494: 2492: 2489: 2487: 2484: 2482: 2479: 2477: 2474: 2472: 2469: 2468: 2466: 2460: 2454: 2451: 2449: 2446: 2444: 2441: 2439: 2436: 2434: 2431: 2429: 2426: 2424: 2421: 2419: 2416: 2414: 2411: 2409: 2406: 2404: 2401: 2399: 2396: 2394: 2391: 2389: 2386: 2384: 2381: 2379: 2376: 2374: 2371: 2369: 2366: 2364: 2361: 2359: 2356: 2354: 2351: 2349: 2346: 2344: 2341: 2339: 2336: 2334: 2331: 2329: 2326: 2324: 2321: 2319: 2316: 2314: 2311: 2309: 2306: 2304: 2301: 2299: 2296: 2294: 2291: 2289: 2286: 2284: 2281: 2279: 2276: 2274: 2271: 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1945 1442: 1438: 1432: 1425: 1420: 1418: 1408: 1406: 1404: 1387: 1381: 1379: 1363: 1357: 1343: 1339: 1333: 1325: 1319: 1303: 1299: 1292: 1276: 1272: 1265: 1250: 1246: 1244: 1236: 1221: 1217: 1210: 1208: 1206: 1196: 1187: 1178: 1171: 1165: 1151: 1147: 1141: 1134: 1128: 1119: 1110: 1106: 1100: 1098: 1083: 1079: 1073: 1064: 1062: 1047: 1043: 1037: 1023: 1019: 1013: 1004: 995: 988: 984: 979: 975: 969: 968: 962: 958: 955: 953: 950: 948: 945: 944: 943: 942: 936: 933: 931: 928: 927: 926: 925: 913: 910: 907: 904: 901: 898: 895: 894:Cruise speed: 892: 889: 886: 885: 884: 882: 874: 871: 868: 865: 862: 858: 855: 852: 851:Gross weight: 849: 846: 845:Empty weight: 843: 840: 837: 836: 826: 825: 824: 823: 822: 821: 820: 819: 815: 812: 809: 806: 803: 800: 799: 798: 796: 791: 790: 782: 770: 769:Dallas, Texas 766: 762: 759: 755: 751: 748: 744: 740: 736: 733: 729: 725: 722: 718: 714: 710: 707: 703: 699: 695: 692: 688: 684: 681: 677: 673: 669: 668: 665:United States 664: 663: 658: 651: 647: 643: 639: 638: 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5469:Not assigned 4785: 4749:1962–present 4651:Crusader III 4509:Experimental 3267: 3021:designations 3019:Manufacturer 2811:CH-37 Mojave 2806:H-34 Choctaw 2780: 2760:Helicopters 2578: 2543: 2530:Helicopters 2147: 2140: 2127: 2112: 2094: 2078: 2056: 2033: 2010: 1991: 1975: 1968:Bibliography 1946: 1940: 1928:. Retrieved 1923: 1914: 1902:. Retrieved 1898: 1889: 1877:. Retrieved 1873: 1864: 1852:. Retrieved 1848:the original 1843: 1834: 1822:. Retrieved 1818:the original 1813: 1804: 1792:. Retrieved 1787: 1778: 1766:. Retrieved 1762:the original 1757: 1748: 1736:. Retrieved 1731: 1722: 1710:. Retrieved 1706: 1697: 1685:. Retrieved 1680: 1671: 1659:. Retrieved 1655:the original 1650: 1641: 1629:. Retrieved 1625:the original 1620: 1611: 1599:. Retrieved 1592:the original 1587: 1574: 1562:. Retrieved 1558: 1549: 1537:. Retrieved 1533: 1524: 1512:. Retrieved 1499: 1487:. Retrieved 1477: 1470:Jefford 1988 1465: 1456: 1445:, retrieved 1440: 1431: 1390:. Retrieved 1365:. Retrieved 1356: 1345:. Retrieved 1341: 1332: 1306:. Retrieved 1301: 1291: 1279:. Retrieved 1274: 1264: 1252:. Retrieved 1248: 1242: 1235: 1223:. Retrieved 1219: 1195: 1186: 1177: 1169: 1164: 1153:. Retrieved 1149: 1140: 1132: 1127: 1118: 1108: 1085:. Retrieved 1081: 1072: 1049:. Retrieved 1045: 1036: 1025:. Retrieved 1021: 1012: 1003: 994: 986: 978: 961: 940: 939: 935:Sikorsky R-5 923: 922: 911: 905: 899: 893: 887: 880: 878: 872: 866: 856: 850: 844: 838: 813: 807: 801: 794: 792: 788: 787: 743:Fort Novosel 717:Fort Belvoir 702:Dayton, Ohio 403: 400: 393:helicopter. 378: 372: 361: 351: 341: 323: 319: 314: 292: 280: 275: 271: 258: 251: 236: 226: 222: 183:Sikorsky R-4 182: 180: 162:Sikorsky R-6 140:First flight 124:Manufactured 111:Number built 69:Manufacturer 5448:CH-92/VH-92 5199:HH-53/MH-53 4757:(1941–1962) 4732:Tri-Service 4402:V-505/V-507 2848:CH-54 Tarhe 2063:: Airlife. 2015:Air-Britain 881:Performance 857:Powerplant: 383:RAF Andover 233:Development 6105:Categories 4728:helicopter 4681:Vindicator 4666:Kingfisher 2061:Shrewsbury 1956:0517679647 1514:21 October 1510:. uscg.mil 1489:21 October 1447:21 October 1424:James 1991 1392:21 October 1367:7 December 1347:2023-11-07 1342:RAF Museum 1281:9 February 1225:9 February 1155:2022-05-05 1087:2019-03-24 1051:2019-03-24 1027:2019-03-24 965:References 487:Hoverfly I 309:& Dr. 219:Royal Navy 187:helicopter 62:Helicopter 6037:McCulloch 5931:McDonnell 5913:McDonnell 5838:McDonnell 5576:McDonnell 5385:CH-3/HH-3 4747:U.S. Navy 4743:U.S. Army 1386:"R-4/H-4" 808:Capacity: 789:Data from 501:Operators 276:Daghestan 272:Daghestan 264:autogyros 127:1942–1944 6073:Sikorsky 6055:Piasecki 5967:Sikorsky 5949:Piasecki 5874:Sikorsky 5856:Piasecki 5726:Sikorsky 5677:Sikorsky 5641:Gyrodyne 5542:Sikorsky 4676:Sea Wolf 4641:Bluebird 4625:A-7 (II) 4328:Fighters 3148:100 (II) 3013:aircraft 2941:Raider X 2243:aircraft 2241:Sikorsky 1879:14 March 1854:14 March 1824:15 March 1794:14 March 1768:14 March 1738:15 March 1712:15 March 1687:14 March 1661:14 March 1631:14 March 1601:14 March 1564:14 March 1539:14 March 1318:cite web 1308:31 March 919:See also 708:in 1967. 411:Variants 391:Gyrodyne 379:Hoverfly 227:Hoverfly 209:and the 80:Designer 4734:systems 4656:Cutlass 4598:Corsair 4591:By name 4545:Unbuilt 4390:F8U/F-8 4321:By role 3143:100 (I) 2931:Firefly 2878:H-60J/K 2774:HH-3E/F 2619:S-61L/N 1254:3 April 839:Height: 814:Length: 674:of the 331:of the 119:History 5755:Hiller 5623:Hiller 4671:Pirate 4634:Others 4620:F4U/AU 4536:XQM-93 4531:XC-142 4407:V-1600 4395:XF8U-3 3009:, and 3003:Vought 2956:XBLR-3 2936:Raider 2506:XBLR-3 2373:S-29-A 2154:  2134:  2119:  2101:  2085:  2067:  2044:  2038:London 2021:  1998:  1982:  1953:  1441:Flight 1243:Flight 1109:Flight 900:Range: 646:London 617:Canada 586:  512:  368:Manila 324:Turner 268:U-boat 239:VS-300 205:, the 201:, the 5996:Kaman 5773:Kaman 5659:Kaman 5555:HSS-2 5550:HSS-1 5455:H-139 5346:J/T/W 5254:MH-60 5249:HH-60 5244:SH-60 5239:UH-60 5235:H-60 5186:CH-53 5182:H-53 5095:H-13J 5090:H-13F 4897:H-13J 4578:V-100 4573:VE-10 4566:Other 4526:V-326 4521:V-173 4516:L450F 4473:XSB3U 4453:XSO2U 4350:V-143 4345:V-141 4340:VE-11 4280:Super 2883:VH-60 2841:MH-53 2816:XH-39 2751:S-434 2746:S-333 2741:S-300 2736:S-103 2731:S-102 2726:S-100 2624:S-61R 2448:VS-44 1930:7 May 1904:7 May 1595:(PDF) 1584:(PDF) 1508:(PDF) 1245:1946" 970:Notes 802:Crew: 745:near 719:near 481:HNS-1 471:XR-4C 455:YR-4B 445:YR-4A 315:39040 46:hover 6086:HU2S 6019:Bell 6009:HU2K 5892:HR3S 5887:HR2S 5791:Bell 5705:HO5S 5700:HO4S 5695:HO3S 5690:HO2S 5524:Bell 5443:H-92 5438:H-90 5420:OH-6 5415:MH-6 5410:AH-6 5406:H-6 5390:SH-3 5381:H-3 5355:UH-1 5342:AH-1 5321:H-73 5316:H-72 5311:H-71 5306:H-70 5301:H-69 5296:H-68 5291:H-67 5286:H-66 5281:H-65 5276:H-64 5271:H-63 5266:H-62 5261:H-61 5231:H-59 5226:H-58 5221:H-57 5216:H-56 5211:H-55 5206:H-54 5178:H-52 5173:H-51 5168:H-50 5163:H-49 5158:H-48 5153:H-47 5148:H-46 5132:H-43 5127:H-37 5122:H-34 5117:H-25 5112:H-23 5107:H-21 5102:H-19 5085:H-13 5054:H-45 5049:H-44 5044:H-43 5039:H-42 5034:H-41 5029:H-40 5024:H-39 5019:H-38 5014:H-37 5009:H-36 5004:H-35 4999:H-34 4994:H-33 4989:H-32 4984:H-31 4979:H-30 4974:H-29 4969:H-28 4964:H-27 4959:H-26 4954:H-25 4949:H-24 4944:H-23 4939:H-22 4934:H-21 4929:H-20 4924:H-19 4919:H-18 4914:H-17 4909:H-16 4904:H-15 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Index

Sikorsky Hoverfly

hover
Helicopter
Manufacturer
Sikorsky Aircraft
Igor Sikorsky
United States Army Air Forces
United States Coast Guard
Royal Air Force
Vought-Sikorsky VS-300
Sikorsky R-6

Langley Research Center's
helicopter
Igor Sikorsky
mass-produced
United States Army Air Forces
United States Navy
United States Coast Guard
United Kingdom
Royal Air Force
Royal Navy
VS-300
Igor Sikorsky
United States Army Air Forces
British Admiralty
Empire Mersey
autogyros
U-boat

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