A Trans-Atmospheric Turbojet Engine

"Mass Injection Pre-Compressor Cooling (MIPCC) is a promising technology which can permit convention jet engines, normally limited in speed and altitude, to propel aircraft to substantially higher altitudes and velocities. By injecting coolant ahead of thecompressor and using its heat of vaporization to cool inlet gasses, the engine can operate at substantially higher velocities without exceeding internal temperature limits. An additional feature of this process is a significant increase in thrust that canbe used for added acceleration or climb to higher altitudes. Phase I engine cycle analysis and hardware demonstrations have proven the viability of the MIPCC concept. A Phase II program is suggested that will demonstrate full-scale MIPCC performanceusing an existing large military jet engine. This integrated system will be tested under conditions that are representative of those needed to support mission requirements for RASCAL and other high performance aircrafts. The end result of this effortwill be a preliminary design for a flight-type MIPCC system."