Sikorsky R-4

R-4
Tüüp	Helikopter
Päritoluriik	Ameerika Ühendriigid
Teenistusajalugu
Kasutajad	Loend
Tootmise ajalugu
Konstruktor	Igor Sikorski
Tootja	Sikorsky Aircraft
Tootmises	1942–1944
Toodetud ühikuid	131
Tehnilised andmed
Kaal	912 kg
Pikkus	14,66 m
Kõrgus	3,78 m
Meeskond	2
Mootor	1 Warner R-550-1 7-silindriline õhkjahutusega ridamootor; 185 hj (138 kW)
Tegevusulatus	210 km
Kiirus	121 km/h

Sikorsky R-4 (USA mereväes ja rannavalves Sikorsky HNS-1, Suurbritannias Hoverfly) on kahekohaline, kolmeharulise rootori ja radiaalmootoriga Ameerika Ühendriikide helikopter, mille konstrueeris Igor Sikorski. R-4 oli esimene masstoodetud ning esimene Ameerika Ühendriikide armee õhuvägede, mereväe, rannavalve ja Suurbritannia kuningliku õhuväe ning mereväe poolt kasutusse võetud helikopter.^[1]

Kasutajad

↑ "Sikorsky R-4B Hoverfly". National Museum of the United States Air Force. Retrieved: 25 July 2016.

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