four-blade propeller
1Four-stroke engine — Four stroke cycle used in gasoline/petrol engines. The right blue side is the intake and the left yellow side is the exhaust. The cylinder wall is a thin sleeve surrounded by cooling liquid. A video montage of the Otto engines running at the… …
2Propeller — 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… …
3Blade — (bl[=a]d), n. [OE. blade, blad, AS. bl[ae]d leaf; akin to OS., D., Dan., & Sw. blad, Icel. bla[eth], OHG. blat, G. blatt, and perh. to L. folium, Gr. fy llon. The root is prob. the same as that of AS. bl[=o]wan, E. blow, to blossom. See {Blow} to …
4propeller — I (New American Roget s College Thesaurus) n. propulsor, impeller, prop (inf.); rotor, blade, airfoil, screw. See propulsion, rotation. II (Roget s IV) n. Types of propellers include: screw, Archimedean, fishtail, variable pitch, feathering,… …
5Controllable pitch propeller — A controllable pitch propeller (CPP) or variable pitch propeller is a type of propeller with blades that can be rotated around their long axis to change their pitch. If the pitch can be set to negative values, the reversible propeller can also… …
6Constant speed propeller — Cutaway constant speed propeller hub …
7Beta-propeller — A beta propeller is a type of all β protein architecture characterized by 4 8 blade shaped beta sheets arranged toroidally around a central axis. Each sheet typically has four antiparallel β strands twisted so that the first and fourth sheets are …
8Hawker Typhoon — Typhoon Typhoon Ib EK139 N Dirty Dora of 175 Sqn. being armed with 500 lb (227 kg) concrete practice bombs in late 1943 …
9Hawker Tempest — infobox Aircraft name = Hawker Tempest type = Fighter/Bomber manufacturer = Hawker Aircraft Limited caption = A late production Hawker Tempest V. designer =Sydney Camm first flight = 2 September 1942 introduced = January 1944 retired = status =… …
10Coandă-1910 — Coandă 1910 …
