propeller blade


Also found in: Dictionary, Thesaurus, Medical.
Related to propeller blade: propeller blade angle, propeller blade pitch

propeller blade

[prə′pel·ər ‚blād]
(design engineering)
One of two or more plates radiating out from the hub of a propeller and normally twisted to form part of a helical surface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

blade

i. A rotating airfoil driven by a helicopter engine to produce vertical lift. Also called a rotor blade.
ii. A rotating airfoil driven by an aircraft engine to produce a thrust force approximately in line with the longitudinal axis of the aircraft. Also called a propeller blade. It is restricted to that part of a propeller arm or of a rotating wing from the shank outward (i.e., that part having an efficient airfoil shape that cleaves the air). See propeller.
iii. A rotating airfoil that is a part of a compressor in a gas turbine engine. Also called a compressor blade.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
A constant-speed prop will automatically change the propeller blades' angle of attack--perhaps minutely--to maintain the desired rpm as, for example, the throttle setting is changed, the airplane's angle of attack varies or it encounters a gust.
Force and energy moving through the region of space occupied by the propeller blade exits into the fluid on the inside surface of the foil; pushing the fluid mass away from the foil.
(2007) Design of a propeller blade for wind-mill motor.
At top right, the hard-to-see crack in this propeller blade also might be repairable, but probably not by your favorite A&P.
In another words, it is necessary to find such distribution of lifting forces--circulations along the propeller blade <0, R> which will assure the maximal efficiency.
Davis Instruments' Prop Sox system includes three injection-molded plastic covers that fit most boaters' propeller blades. They are ideal for keeping propeller blades safe from dings and dents while out of the water and work with most stemdrives and outboards too.
The turbo-prop powered Cebu Pacific, ATR 72-500 passenger aircraft was about to land at the Daniel Romualdez Airport around 5am when its propeller blades struck a bird.
An assortment of propeller blades keeps product moving to maintain uniform temperature, thickness and consistency.
Elsewhere, a woman was seriously injured by propeller blades after she fell off a boat near Llanddwyn Island, off Anglesey.
An AE2 was assigned to the flight station to begin moving the propeller blades, and another AE2 was acting as the outside observer.
In addition to these equivalents, the data requirements of 14 CFR Part 45, Identification and Registration Marking, for only aircraft, aircraft engines, propellers, and propeller blades and hubs are consistent with the data elements required by our UID constructs.