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NASA completes record sustained burn of revolutionary rocket engine
To squeeze a bit more performance out of rocket engines, NASA is looking at a fundamentally different design with the RDRE
“Inside-out Wankel” rotary engine delivers 5X the power of a diesel
LiquidPiston says its new XTS-210 solves the efficiency, lubrication and fuel type issues of Wankel rotary engines

World’s 1st hydrogen-powered jet engine seeks turning point for aviation industry
A second round of tests on the engine is currently being planned
