Lift Jet Engine, JR100

As part of the program for developing VTOL craft, the National Aerospace Laboratory (NAL) of the Japanese Government installed two JR100 lift jet engines on their Flying Test Bed, following upon the successful outcome of tests on the Height Control Tower with other JR100 engines. These JR100 engines were developed in a joint effort between NAL and IHI. Five engines in three successively modified version have been produced, and the aggregate number of runs has already reached 1700, recording accumulated operating time of more than 200 hrs. The engine which has a 6-stage compressor, an annular combuster and a single-stage turbine, produces 3350 lb thrust and weighs 340 lb.Copyright © 1971 by ASME