ADVANCED PROPULSION CONCEPTS AERODYNAMICS & AERONAUTICS ROCKET ENGINE TYPES A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site air-breathing engine Performance of air-breathing engines burning hydrogen fuel An engine that takes in air from its surroundings in order to burn fuel. Examples include the ramjet, scramjet, turbojet, turbofan, and pulse-jet. These contrast with a rocket which carries its own oxidizer and thus can operate in space. Some vehicles, such as space planes, may be fitted with both air-breathing and rocket engines for efficient operation both within and beyond the atmosphere. The maximum velocity of air-breathing engines is limited to 1-3 km/s due to extreme temperature and dissociation of the exhaust gas; however, the maximum velocity of a hydrogen-breathing engine of the same design is about 4 times higher. Related categories    • ADVANCED PROPULSION CONCEPTS    • AERODYNAMICS AND AERONAUTICS    • ROCKET ENGINE TYPES Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP