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Glossary Air Spike A focused point of energy created in GETO Ground Effect Take-off. A rolling take-off, © NACA National Advisory Committee on the path of a vehicle that cuts a channel initially using ground effect lift. Aeronautics - the forerunner of NASA. through the atmosphere and allows rapid ‘ . A f Ionic Propulsion The application of a high NASA National Aeronautics and Space acceleration to hypersonic velocity while ‘ . ‘ Pa lnkoat® avoiding thermal stress. voltage to the exterior of a vehicle, which Administration, created on Ist October 8 . produces a negative ion field that pulls 1958 by the Eisenhower Administration. Aspect Ratio The aspect of wingspan to mean surrounding air along its flow path. NERVA Nuclear Engine for Rocket Vehicle chord, usually calculated by dividing the ' Sat ae + acti square of the span by the wing area JPL Jet Propulsion Laboratory - Originally a Application. A multi-billion dollar US q pan by 8 . USAAF department and later a major programme to build a nuclear thermal Coanda Effect The tendency of a jet stream to NASA facility. propulsion system with significantly flow along a solid surface, which may curve away from the jet axis. more power than a chemical rocket. Work was undertaken from approximately 1961 to 1973, but Kinaesthetic Control Devised by Charles Zimmerman. The pilot of a small flying Collective Pitch Flight control (for rotary winged platform shifts his body weight to change development continued in the black aircraft) that simultaneously adjusts the flight direction. . . " ‘ P . domain as Project Timberwind. pitch of all blades used in a rotor to LD lify/drag ratio. A measurement of control lift. 8 . ‘ OAV Organic Air Vehicle - used by the aerodynamic efficiency, with a smallest operational unit. Cross Range The distance to a landing site on maximum of about 45:1 for sailplanes. P . either side of a spacecraft’s re-entry path. LUNEX Lunar Exploration Plan - USAF 1961 OKB pac ine eioataas deel comed Cyclic Pitch Flight control (for rotary-winged proposal for a military base on the Moon. P 8 with aerospace technology. Project Horizon US Army 1959 project for a military base on the Moon. aircraft) that tilts the rotor disc and controls the direction of flight. Mach Number Ratio of an air vehicle’s true speed to the speed of sound in air at the DARPA Defense Advanced Research Projects altitude the vehicle is flying. A vehicle Agency (US). travelling ata Mach number in excess of | RFGT Radial Flow Gas Turbine - An unusual Ducted Fan Design Enclosed rotor propulsion lis considered to be supersonic. At high-performance pancake-shaped velocities above Mach 5 it becomes engine, working edge-on during level system. ‘ 6 hypersonic. flight. Electrogravitics Electro-gravitational theory, MHD (Magnetohydrodynamic) Fanjet RLM __ Reichsluftfahrtministerium - with possible applications as a field- 4 : nae . A theoretical propulsive system German Air Ministry. effect propulsion system. . " producing a field of intense plasma STOL Short take off and landin: EHD _ Electrohydrodynamic propulsion. A beneath a vehicle, which is controlled by 8. proposed system to control the flow of superconducting magnets. TW __ Thrust to weight ratio. Plasma beneath a disc-shaped vehicle, MIT The Massachusetts Institute of VTOL Vertical take off and landing. producing thrust. Technology. Jet Propulsion Laboratory - Originally a USAAF department and later a major NASA facility. Coanda Effect The tendency of a jet stream to flow along a solid surface, which may curve away from the jet axis. lift/drag ratio. A measurement of aerodynamic efficiency, with a maximum of about 45:1 for sailplanes. Organic Air Vehicle - used by the smallest operational unit. Opytno Konstrucktorskoe Byuros - Soviet Special Design Bureau concerned with aerospace technology. Cyclic Pitch Flight control (for rotary-winged aircraft) that tilts the rotor disc and controls the direction of flight. DARPA Defense Advanced Research Projects Agency (US). system. Electrogravitics Electro-gravitational theory, with possible applications as a field- effect propulsion system. Reichsluftfahrtministerium - German Air Ministry. EHD Electrohydrodynamic propulsion. A proposed system to control the flow of plasma beneath a disc-shaped vehicle, producing thrust. Thrust to weight ratio. The Massachusetts Institute of Technology. 174 Ducted Fan Design Enclosed rotor propulsion Secret Projects: Flying Saucer Aircraft