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Piasecki H-21 cockpit. Piasecki Helicopter designed and successfully sold to the United States Navy a series of tandem rotor helicopters, starting with the HRP-1 of 1944. The HRP-1 was nicknamed the "flying banana" because of the upward angle of the aft fuselage, which ensured that the large rotors could not strike the fuselage in any flight attitude.
Boeing-Vertol H-47 Chinook, an American helicopter; HMS Blanche (H47), a Royal Navy B-class destroyer; HMS H47, a Royal Navy H-class submarine; Hyampom Airport, in Trinity County, California, United States
Both the H-45 and the H-47 were powered by a single, uncowled, Pratt & Whitney 9-cylinder radial: the H-45 had a 450 hp (335 kW) Wasp and the H-47 a 525 hp (390 kW) Hornet. The Hornet gave a 10 mph (16 km/h) increase in cruising speed and a slight (3%) increase in useful load to 2300 lb (1043 kg). [2] Both types first flew in 1928.
The Kaman HH-43 Huskie is a helicopter developed and produced by the American rotorcraft manufacturer Kaman Aircraft. [2] It is perhaps most distinctive for its use of twin intermeshing rotors, having been largely designed by the German aeronautical engineer Anton Flettner.
Lioré et Olivier received an order for a prototype of its design to meet this specification, the LeO H-47 on 10 August 1935. [2] The H-47 was a cantilever high-wing monoplane, with a streamlined hull. A flight deck, which accommodated a crew of five (two pilots, a navigator, a radio operator and a mechanic) and a cabin for four to eight ...
The tandem overlapping rotor configuration was a development by Piasecki and was used in future helicopter designs by the company and successors including the H-21, HRB-1/CH-46, and CH-47. The original HUP-1 was powered by a single Continental R-975-34 radial engine, with a take-off rating of 525 hp (391 kW), while later versions used the ...
An offensive armament subsystem developed for the ACH-47 helicopter, the XM34 provides two M24A1 20mm cannons with ammunition boxes on sponsons at the front of the aircraft fixed forward. [7] These sponsons were also fitted with aircraft-style hardpoints that allowed the mounting of XM159B/XM159C 19-tube 2.75"-rocket launchers or M18/M18A1 7.62 ...
HMS H47 was a British H class submarine built by William Beardmore and Company, Dalmuir.She was laid down on 20 November 1917 and was commissioned on 25 February 1919. It had a complement of twenty-two crew members.