two-blade rotor
1Rotor/Stator Interaction — An important issue for the aeronautical industry is the reduction of aircraft noise. The characteristics of the turbomachinery noise are to be studied. The rotor/stator interaction is a predominant part of the noise emission.We will present an… …
2Helicopter rotor — This article is about helicopter main rotor systems. For antitorque control, see tail rotor. Helicopter rotor The rotor head of a Sikorsky S 92 A helicopter main rotor or rotor system is a type of fan that is used to generate both the aerodynamic …
3E-Flite Blade CX and CX2 — The E Flite Blade CX is an entry level, ready to fly electric micro R/C helicopter designed and distributed by E Flite, a division of Horizon Hobby of Champaign, Illinois, USA.Blade CXThis model was introduced in late 2005 as an easier to fly… …
4cross-beam rotor — Usually the tail rotor of a helicopter comprising a two blade assembly, superimposed on each other. The angle at which rotors are superimposed is normally 90°, but this superimposition can be at other angles as well …
5helicopter — /hel i kop teuhr, hee li /, n. 1. any of a class of heavier than air craft that are lifted and sustained in the air horizontally by rotating wings or blades turning on vertical axes through power supplied by an engine. v.i. 2. to fly in a… …
6NASA wind turbines — NASA experimental wind turbines drawn to the same scale Starting in 1975, NASA developed technologies and was the technical manager for the United States Department of Energy and the United States Department of Interior on a program to develop… …
7Kellett XR-8 — NOTOC The Kellett XR 8 (later redesignated XH 8) was a helicopter built in the United States during the Second World War. It was a two seat machine intended to demonstrate the feasibility of a twin rotor system, and while it accomplished this, it …
8Fairey Jet Gyrodyne — Infobox Aircraft name=Fairey Jet Gyrodyne type=Gyrodyne manufacturer=Fairey Aviation caption= designer= first flight=January 1954 (free flight) 1 March 1955 (transition flight) introduced= retired=1961 status= primary user= more users= produced=… …
9History of wind power — This article is about the history of wind power. Early history Sailboats and sailing ships have been using wind power for at least 5,500 years, and architects have used wind driven natural ventilation in buildings since similarly ancient times.… …
10Unmanned Combat Armed Rotorcraft — The Uninhabited Combat Armed Rotorcraft or UCAR was a program carried out by DARPA and the United States Army in 2003 2004 to develop an unmanned combat helicopter. Originally named the Robotic Rotary Wingman , a requirement was issued in the… …
