subsonic performance
71airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …
729×39mm — Type Rifle Place of origin  Soviet Union …
73flight, history of — ▪ aviation Introduction development of heavier than air flying machines. Important landmarks and events along the way to the invention of the airplane include an understanding of the dynamic reaction of lifting surfaces (or wings), building… …
74Blue Angels — For the 1960 television series, see The Blue Angels (TV series). Blue Angels United States Navy Flight Exhibition Team The Blue Angels F/A 18 Hornets fly in tight diamond formation maintaining 18 inch wing …
75Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …
76Cartridge (firearms) — From left: .50 BMG, .300 Win Mag, .308 Winchester, 7.62×39mm, 5.56×45mm NATO, .22LR. A cartridge, also called a round, packages the bullet, gunpowder and primer into a single metallic case precisely made to fit the firing chamber of a firearm …
77Delta wing — HAL Tejas has a tailless delta wing configuration …
78Aviation history — deals with the development of mechanical flight, from the earliest attempts in kite powered and gliding flight, to powered heavier than air flight, and beyond. Humanity s desire to fly possibly first found expression in China, where people flying …
79Aspect 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,… …
80.45 ACP — Infobox Firearm Cartridge name= .45 ACP caption=.45 ACP cartridges origin=flag|United States type=Pistol designer= John Browning design date= 1904 [ [http://findarticles.com/p/articles/mi m0BQY/is 10 49/ai 107488554 The .45 ACP approaches its… …
