aerostats, airship, blimp, uav, dirigible, retroreflector, geosynchronous orbit, drogue chute, drogue parachute, ballon, gimbals, elint, radome, awacs, radars, sonobuoy, balloon, gradiometer, autorotation, obscuration, ornithopter, frustum, spacecraft, inertial navigation system, copter, inertial navigation, retrorockets, dipole, drogue, copters, payload, vtol, multispectral, geostationary, dscs, flyover, solar array, aerial, aircrews, parachute, klystron, gyroscope, cherenkov radiation, dropsonde, zoetrope, windsock, parabolic mirror, magnetoresistance, sailplane, afterburner, periscopes, imageries, exosphere, altimeters, omnidirectional antenna, ferris wheel, skysail, helicopter, cantilever, flying saucer, image intensifier, multirole, meteorological satellite, particle beam, aerostar, ehud, interferometer, inertial guidance, optical telescope, microcircuit, telescope, wind vane, cumulonimbus cloud, airglow, missile defense system, lunar excursion module, satellites, gnomon, bolometer, lidar, aircraft, thunderclouds, rotary wing, strain gauge, linga, flypast, charkha, helo, hang glider, parachutists, geostationary orbit, spectrometric, telemeter, glider, truss, geosynchronous, proton accelerator, spectrographic, nvis, directional antenna, air cushion, choppers, calabash, barrels, basket, blister, bowl, cask, float, granary, jug, kitchen, knapsack, loaf, mug, sponge, trench, tub, vat, anvil, auditorium