propeller blade section
1blade section — A cross section of a propeller blade that is perpendicular to the span of the blade …
2blade section — noun : a cross section of a propeller blade in a plane parallel to that containing the axis of rotation …
3blade — [blād] n. [ME blad < OE blæd, a leaf < IE * bhlē , var. of base * bhel , to swell, sprout: see BLOOM1] 1. a) the leaf of a plant, esp. of grass b) the flat, expanded part of a leaf; lamina 2. a) …
4Propeller — A propeller is essentially a type of fan which transmits power by converting rotational motion into thrust for propulsion of a vehicle such as an aircraft, ship, or submarine through a mass such as water or air, by rotating two or more twisted… …
5blade chord — A straight line joining the leading edge of a propeller blade with its trailing edge. blade cuff A metallic, wooden, or plastic structure designed for attachment to the shank end of the blade, with an outer surface that will transform the round… …
6Constant speed propeller — Cutaway constant speed propeller hub …
7fixed-pitch propeller — A propeller whose blade angle at the section under consideration is fixed and cannot be changed. This kind of propeller is most efficient at only one air speed and RPM. Fixed pitch propellers are generally made of wood …
8Counter-rotating propellers — Not to be confused with Contra rotating propellers. Counter rotating propellers Opposite propeller blade section can be clearly seen on this Piper PA 44 Seminole Counter rotating propellers, found on twin and multi engine propeller driven… …
9Advance ratio — Diameter of the propeller. In aeronautics and marine hydrodynamics, the advance ratio at which a propeller is operating is the ratio between the distance the propeller moves forward through the fluid during one revolution, and the diameter of the …
10Ship motion test — traight line testThe velocity dependent derivatives Yv and Nv of the ship at any draft and trim can be determined from the model test carried in towing tank. The model is towed with a constant velocity corresponding to a given ship Froude no. at… …
