Dragongeek t1_j6jr8yv wrote on January 30, 2023 at 8:46 PM Reply to comment by Bobandis458 in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680 iirc hydrogen-fueled air-breathing RDEs are theorized working up to Mach 5 at 8000-9000 isp and hydrocarbon fueled ones about half or a third that isp. It's all theory though, but very attractive Permalink Parent −1−
Dragongeek t1_j6jr8yv wrote
Reply to comment by Bobandis458 in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
iirc hydrogen-fueled air-breathing RDEs are theorized working up to Mach 5 at 8000-9000 isp and hydrocarbon fueled ones about half or a third that isp.
It's all theory though, but very attractive