blade tip
71alpha hinge — The hinge at the root of a helicopter rotor blade with its axis perpendicular to the plane of rotation. It allows the blade tip to move back and forth in its plane of rotation. Movement about the alpha hinge is called drag. Drag dampers oppose… …
72lead-lag hinge — The hinge at the root of a helicopter rotor blade with its axis perpendicular to the plane of rotation. It allows the blade tip to move back and forth in its plane of rotation. Movement about the lead lag is called drag. Drag dampers oppose this… …
73Propulsor — A propulsor is a mechanical device that gives propulsion.The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle and Pump jet are examples.A propulsor, as… …
74Weston, Hertfordshire — infobox UK place country = England static static image caption=Cottages in Weston latitude= 51.95692 longitude= 0.16777 official name= Weston population= shire district= North Hertfordshire shire county = Hertfordshire region= East of England… …
75Compressor map — Each compressor (or fan) in a gas turbine engine has an operating map. Complete maps are either based on compressor rig test results or are predicted by a special computer program. Alternatively the map of a similar compressor can be suitably… …
76Bakke Mountain Wind Farm — is a proposed alternative energy wind plant located in Bakke Mountain, Massachusetts. It is also known as the Hoosac Wind Project.HistoryIn 1980, during a Bakke Mountain hike, the Bakke family noticed the region was quite breezy. The sparse tree… …
77XH-26 Jet Jeep — NOTOC The XH 26 Jet Jeep (known as the XA 8 by its manufacturer) was an experimental helicopter developed in 1951 by the American Helicopter Division of the Fairchild Engine and Airplane Corporation to meet a U.S. Army and USAF request for a… …
78Milton Keynes Wind Farm — Coordinates: 52°8′10.4″N 0°39′52″W / 52.136222°N 0.66444°W / 52.136222; 0.66444 …
79never-exceed speed — The speed beyond which it is not safe to fly an aircraft. It is normally less than the maximum diving speed (VD ). As it concerns rotary wing aircraft, the never exceed speed, VNE , must be established so that it is (i) not less than 40 knots… …
80propeller diameter — The diameter of the circle described by a rotating propeller. It is twice the distance from the center of the propeller hub to the blade tip …
