subsonic area
51Mikoyan-Gurevich MiG-21 — MiG 21 Romanian MiG 21UM Lancer B Role Fighter Manufacturer …
52Fanno flow — refers to adiabatic flow through a constant area duct where the effect of friction is considered. Compressibility effects often come into consideration, although the Fanno flow model certainly also applies to incompressible flow. For this model,… …
53High-speed flight — In high speed flight the assumptions of incompressibility of the air used in low speed aerodynamics no longer apply. In subsonic aerodynamics, the theory of lift is based upon the forces generated on a body and a moving gas (air) in which it is… …
54People's Liberation Army —   中国人民解放军   Emblem of the People s Liberation Army Founded August 1, 1927 Service branches …
55Lockheed L-2000 — The Lockheed L 2000 was Lockheed s entry in a government funded competition to build the United States first supersonic transport (SST) in the 1960s. The L 2000 lost the contract to the Boeing 2707, but that competing design was ultimately… …
56Aspect ratio (wing) — In aerodynamics, the aspect ratio of a wing is defined as the square of the wing span divided by the wing area.:AR = {b^2 over S}where: b is the wing span, and: S is the wing area.Informally, a high aspect ratio indicates long, narrow wings,… …
57Douglas 2229 — Douglas Aircraft Company s Model 2229 was a proposed supersonic transport (SST) originally started as a private study. The design progressed as far as making mock ups of the cockpit area and wind tunnel models of the overall layout. After… …
58Next-Generation Bomber — Boeing/Lockheed Martin contender concept image Role …
59ГОСТ 23851-79: Двигатели газотурбинные авиационные. Термины и определения — Терминология ГОСТ 23851 79: Двигатели газотурбинные авиационные. Термины и определения оригинал документа: 293. Аварийное выключение ГТД Аварийное выключение Ндп. Аварийное отключение ГТД D. Notausschaltung Е. Emergency shutdown F. Arrêt urgent… …
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60Swept wing — A swept wing is a wing planform common on high speed aircraft, with the wing swept back instead of being set at right angles to the fuselage. This is a useful drag reducing measure for aircraft flying just below the speed of sound. Forward sweep… …
