Search results
Results from the WOW.Com Content Network
Disadvantages of the tandem rotor system are a complex transmission [1] and the need for two large rotors. The two rotors are linked by a transmission that ensures the rotors are synchronized and do not hit each other, even during an engine failure. [2] Tandem-rotor designs achieve yaw by applying opposite left and right cyclic to each rotor ...
The Kellett XR-8 (later redesignated XH-8) was a helicopter built in the United States during World War II.It was a two-seat machine intended to demonstrate the feasibility of a twin-rotor system and, while it accomplished this, it also demonstrated a number of problems that prevented further development of this particular design.
An intermeshing-rotor helicopter (or synchropter) is a helicopter with a set of two main rotors turning in opposite directions, with each rotor mast mounted with a slight angle to the other, in a transversely symmetrical manner, so that the blades intermesh without colliding.
The XR-10 resembled a scaled-up XR-8, although its twin engines were carried in nacelles at the fuselage sides, driving the rotors via long driveshafts, and the aircraft was skinned entirely in metal. The first of two prototypes flew on 24 April 1947, and at the time, was the largest rotorcraft to fly in the United States. [2]
The twin intermeshed rotors of this design The prominent exhaust tube the turbine powered version HOK-1 with SS-11 (M22) missiles. The design had two main rotors, each with two blades, the blades were made primarily of wood and the two main rotors were linked by a transmission to keep them synced correctly. [8]
Ospreys can take off vertically like helicopters, but then tilt their two rotors to fly like dual propeller planes. The military has about 400 Ospreys that are used by the Navy, Marines and Air ...
The Yakovlev Yak-24 (NATO reporting name "Horse") is a Soviet twin-engine, tandem rotor, transport helicopter developed by Yakovlev in the 1950s. The Yak-24 saw limited use in the Soviet Air Force , and the exact number produced and duration of service are unknown due to inconsistencies in data.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!