Aviation dictionary. 2014.
rotor system types — There are three types of rotors: rigid, semirigid, and fully articulated. In a rigid rotor, the blades are free to change pitch but otherwise are made as rigid as possible. The blades of rigid rotor have no hinges that allow them to flap or drag … Aviation dictionary
Helicopter 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 … Wikipedia
seesaw rotor — A rotor system in which the blades are fixed to the hub, generally by a teetering or seesaw hinge, allowing the blades to flap and feather but not lead lag or drag. The rotor pivots on the mast in much the same way a seesaw pivots on its fulcrum … Aviation dictionary
Bell 427 — Infobox Aircraft name= Bell 427 caption= Croatian Bell 427 landing type=Multipurpose utility helicopter manufacturer=Bell Helicopter Textron designer= first flight=11 december 1997 introduced=2000 retired= status=Active service primary user= more … Wikipedia
mast bumping — A phenomenon to which helicopters fitted with semirigid rotor systems, teetering types, and underslung types are susceptible. In this phenomenon, the fuselage begins to right roll in a low g or zero g condition. If a lateral cyclic is applied to… … Aviation dictionary
aerospace industry — Introduction assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the … Universalium
Molecular Hamiltonian — In atomic, molecular, and optical physics as well as in quantum chemistry, molecular Hamiltonian is the name given to the Hamiltonian representing the energy of the electrons and nuclei in a molecule. This Hermitian operator and the associated… … Wikipedia
ship — Synonyms and related words: Graf Zeppelin, address, aeroplane, aerostat, air express, aircraft, airfreight, airmail, airplane, airship, argosy, ark, avion, back, bag, balance rudder, ballonet, balloon, barge, barrel, bathyscaphe, batten, beak,… … Moby Thesaurus
