- The circular area swept by a propeller.
Aviation dictionary. 2014.
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Propeller — 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… … Wikipedia
propeller radius — The radius of a propeller disc (i.e., the distance of a propeller tip from the axis of rotation). Also called a tip radius … Aviation dictionary
Military disc-shaped aircraft — The development of military disc shaped aircraft apparently dates back to World War II. A number of disc shaped aircraft have been proposed over the years, a few being built. Contents 1 Nemeth Umbrella Plane 2 Sack AS.6 3 Vought Flying Flapjack … Wikipedia
P-factor — P factor, also known as asymmetric blade effect and asymmetric disc effect, is an aerodynamic phenomenon experienced by a moving propeller, that is responsible for asymmetrical relocation of the propeller s center of thrust when aircraft is at … Wikipedia
Deflected slipstream — is an approach to creating an aircraft that can take off and land vertically (VTOL), or at least with a very short runway (STOL). The basic principle is to deflect the slipstream from one or more propellers approximately 90 degrees, to create an… … Wikipedia
Interrupter gear — is a term that covers two related technologies. The first is the synchronization gear, which is often incorrectly referred to as interrupter gear ; this is a triggering device attached to the machine gun armament of a tractor type fighter… … Wikipedia
P factor — One of the “left turning tendencies” of aircraft with a propeller, in which the loading of a propeller disc produces more thrust on one side than the other. If the nose of the aircraft points up relative to the oncoming wind, the downward moving… … Aviation dictionary
solidity — i. The ratio between the part of a propeller disc that when viewed from the front is solid and the part that is just air. This ratio is measured by adding up the blade chords at a certain radius and dividing the sum by the circumference at that… … Aviation dictionary
Caproni Ca.20 — Infobox Aircraft name=Caproni Ca.20 type=Fighter aircraft manufacturer=Caproni CA.20 at Museum of Flight designer= Gianni Caproni first flight=1914 introduced= retired= number built=1 status= unit cost= primary user= more users= variants with… … Wikipedia
coarse pitch — Making a large angle between the blade chord and the plane of the propeller disc, thus producing a high forward speed for a given rotational speed. Unlike at takeoff and landing, when forward air speeds are low and the propeller pitch is fine,… … Aviation dictionary