Abstract
The ability to efficiently develop ram and scramjet engines can be influenced by ground facilities. The National Aerospace Laboratory of Japan completed a ramjet engine test facility (RJTF) in 1994. It can duplicate engine test conditions in the range of flight Mach numbers from 4 to 8. The facility can supply non-vitiated air for M4 and M6 to identify the effects of contamination in vitiated air, providing a basis for evaluating engine performance in the M8 flight condition. In this paper, the unique features and operating characteristics of the RJTF are outlined. The quality of air stream obtained during facility calibration and the facility-engine interaction are described. Finally, we review tests of a H2-fueled scramjet and Ctfy-fueled ramjet engines currently underway.
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