A panorama of vertical flight in all its forms, from aerostats and helicopters to VTOL/STOL aircraft, hovercraft, and individual equipment. The last four chapters (of ten) address astronautics: reaction propulsion in a vacuum, chemical and nuclear rocket engines, geostationary communication and weather satellites, and prospects for landing on the Moon and Mars. Published in 1966, the book reflects the state of knowledge on the eve of the first Apollo missions.