This dictionary covers the entire complex of specialist terms encountered in the scientific-technical literature on aircraft and spacecraft engineering. A number of unclear or particularly complicated terms have had explanations added to promote lucidity.The basic word categories cover the following partial fields pertaining to aerospace engineering and related scientific-technological disciplines:- the scientific technological classification and operation of atmospheric and orbital flying vehicles (subsonic, transsonic, supersonic and hypersonic aeroplanes, short-take-off and vertical take-off aeroplanes, helicopters, hovercraft, space vehicles, space rocket systems, take-off and landing modules, orbital stations and orbital complexes, spacecraft etc.);- the construction, principles of mechanism, design and production, characteristic values and special features during the flights of different flying vehicles;- aero-engines and rocket motors, power systems, their special features and breakdown, power systems of spacecraft, aviation fuels and rocket propellants;- on-board and ground equipment of aeronautics and astronautics; navigation systems, control systems, guidance systems, life-support systems of flying vehicles;- materials and technologies in the production field of aircraft and spacecraft engineering, ground and flight operations, ground and flight testing and investigations of flying vehicles and their systems, scientific-methodological fundamentals and the technology of aerodynamics and space experiments;- aerodromes, helidromes, water aerodromes and cosmodromes; air traffic control, organisation of spaceflights (single and mass flights);- theoretical and applied aerodynamics, superaerodynamics, flight dynamics, gas dynamics, aerothermodynamics, magnetodynamics, ballistics of flying vehicles;- methods of calculation and projection of aeroplanes and spacecraft and questions of space research including those regarding long-time interplanetary flights.This dictionary is of use to a broad circle of specialists in aircraft and spacecraft engineering: scientists, engineers, pilots, specialists in the production, testing and operation of flying vehicles, related ground services and complexes. Furthermore, it will be found valuable by translators, teachers and students of higher education centres, and institutes and organizations concerned with the dissemination of scientific-technical findings. It will assist users to read and translate contemporary Russian, English and German literature devoted to these fields.