Sikorsky R-4
[5] 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)[6][7] The British Admiralty, having learned of the VS-300, made a ship available, Empire Mersey, fitted with an 80 ft × 40 ft (24 m × 12 m) landing platform, intended to show the USN their work with ship-borne autogyros.[10] Following the explosion and sinking in January 1944 of USS Turner, 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.[11] On 22–23 April 1944, U.S. Army Lieutenant Carter Harman of the 1st Air Commando Group conducted the first combat rescue by helicopter using a YR-4B in the China-Burma-India theater.The ships had been configured as floating repair depots for damaged Army Air Forces aircraft in the South Pacific.[15] Helicopter pilot 2LT Louis Carle was assigned to the Brigadier General Clinton W. Russell, the Fifth Aircraft Repair Unit.[16] On June 15, 1945, the Fifth Air Force received a request from the 38th Infantry Division to evacuate two soldiers with head injuries from a spot 35 miles (56 km) east of Manila.Many RAF Hoverfly Mark Is were transferred to the Royal Navy for training and one was used in 1945–46 by Fairey Aviation to develop rotor systems for their Gyrodyne helicopter.
HelicopterManufacturerSikorsky AircraftIgor SikorskyUnited States Army Air ForcesUnited States Coast GuardRoyal Air ForceVought-Sikorsky VS-300Sikorsky R-6Langley Research Center'smass-producedUnited States NavyUnited KingdomRoyal NavyVS-300British AdmiraltyautogyrosU-boatWarner R-550-1 Super ScarabWarner R-500-3USS TurnerCarter Harman1st Air Commando GroupChina-Burma-India theaterOperation Ivory Soapmedical evacuation38th Infantry DivisionManilaRAF AndoverFairey AviationGyrodyneNational Museum of the United States Air ForceWarner R-550-1Warner R-550-3Fleet Air Arm703 Naval Air Squadron705 Naval Air Squadron771 Naval Air SquadronRoyal Naval Flying SchoolNo. 529 Squadron RAFNo. 657 Squadron RAFUnited StatesCanada Aviation and Space MuseumOttawa, OntarioRoyal Air Force Museum LondonLondonCollege of Aeronautics, CranfieldSteven F. Udvar-Hazy CenterNational Air and Space MuseumChantilly, VirginiaNew England Air MuseumWindsor Locks, ConnecticutDayton, OhioUniversity of IllinoisNational Museum of the United States ArmyFort BelvoirMount Vernon, VirginiaYanks Air MuseumChino, CaliforniaUnited States Army Aviation MuseumFort NovoselDaleville, AlabamaNational Museum of Naval AviationPensacola, FloridaCommemorative Air ForceDallas, TexasSikorsky R-5Focke-Achgelis Fa 223Flettner Fl 282Platt-LePage XR-1Air-BritainShrewsburySikorskyS-22/23/24/25/26/27S-29-AXBLR-3VS-300 (S-46)S-61L/NSH-3 Sea KingHH-3E/FH-19 ChickasawH-34 ChoctawCH-37 MojaveHH-52A SeaguardCH-53 Sea StallionCH-53E Super StallionCH-53K King StallionCH-54 TarheUH-60 Black HawkHH-60G Pave HawkHH-60J/MH-60TMH-60R/S SeahawkSH-60B/F SeahawkH-60J/KRAH-66 ComancheVH-92 PatriotCH-124 Sea KingCH-148 CycloneCypher/Cypher IIFireflyRaiderRaider XVoughtVought-SikorskyLTV Aerospace100 (I)100 (II)VE-7/VE-8/VE-9F8U/F-8XF8U-3V-1600XC-142XQM-93Corsair JuniorF4U/AUA-7 (II)BluebirdCrusader (I/II)Crusader IIICutlassFlying FlapjackKingfisherPirateSea WolfVindicatorTri-Service