thrust+down
121Powered hang glider — A foot launched powered hang glider (FLPHG), also called powered harness, nanolight or hangmotor, is a powered hang glider harness with a motor and propeller in pusher configuration. An ordinary hang glider is used for its wing and control frame …
122Gravity turn — A gravity turn or zero lift turn is a maneuver (see trajectory optimization) used in launching a spacecraft into, or descending from, an orbit around a celestial body such as a planet or a moon. This launch trajectory offers two main advantages… …
123McDonnell Douglas F-15 Eagle — F 15 redirects here. For other uses, see F15 (disambiguation). F 15 Eagle USAF F 15C over Washington …
124Lockheed F-104 Starfighter — F 104 Starfighter A Fokker built, German owned F 104G in USAF markings in August 1979 Role Intercep …
125Mikoyan MiG-29 — MiG 29 redirects here. For other uses, see MiG 29 (disambiguation). MiG 29 …
126Mikoyan-Gurevich MiG-23 — MiG 23 A Soviet Air Force MiG 23MLD Role Interceptor/Fighter (M series) …
127F-15 Eagle — Infobox Aircraft name=F 15 Eagle type=Air superiority fighter manufacturer=McDonnell Douglas / Boeing IDS caption=USAF F 15 over Washington, D.C designer= first flight=July 27, 1972 introduction=January 9, 1976 retired= number built=… …
128Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …
