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Hypersonic airbreathing propulsion D. Daley, D. Pratt, U. Mehta, W. Heiser
Publisher: AIAA (American Institute of Aeronautics & Ast

Hypersonic Airbreathing Propulsion (Aiaa Education) by William H. The RLV is intended to test several indigenous capabilities, including hypersonic flight, autonomous landing, and powered cruise flight, hypersonic flight using air breathing propulsion. Designed to conduct research, development, and acceptance testing of hypersonic airbreathing propulsion systems, the Hypersonic Tunnel Facility (HTF) is a fully self-contained facility. Mentor: Troy Middleton, Hypersonic Airbreathing Propulsion Branch, Currently, propulsion-airframe integrated scramjets are one of the most promising airbreathing propulsion systems for access to space. In the last 5-7 years, advanced airbreathing hypersonic propulsion systems have been developed that allow the extremely high Isp of air-oxidized thrust up to around Mach 10 or higher. How far along is the technology? Most satellites have simple reliable chemical thrusters (often monopropellant rockets) or resistojet rockets for orbital 7-Hypersonic Airbreathing Propulsion (Aiaa Education) by William H. All current spacecraft use chemical rockets (bipropellant or solid-fuel) for launch, though some (such as the Pegasus rocket and SpaceShipOne) have used air-breathing engines on their first stage. The next great leap for jet propulsion will be to power-sustained, efficient flight through the atmosphere. Hypersonic Air-Breathing Propulsion. The most well-developed hypersonic air-breathing engines are small ones that are easily adapted to act as missile propulsion systems. It's a promising design that tackles one of the bigger problems facing hypersonic engines: the enormous amount of heat generated when you compress air at extremely high speeds. Apparently, Chinese developers have abandon to waste time on the hypersonic air-breathing propulsion system but choose a conventional rocket power system to realize Single-stage-to-orbit. An orbiter with a drop tank that carries the boost phase propellant in the drop tank could use more conventional rocket engines rather than not-yet-developed hypersonic airbreathing engines.