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redpoint5 · 11-22-2022, 09:24 PM

I've been contemplating turbojet, to ramjet, to scramjet to rocket boost for orbital injection. Breathing air instead of hauling it with you is the most efficient way to gain initial speed and altitude.

11-22-2022, 09:24 PM	#624 (permalink)
redpoint5 Human Environmentalist Join Date: Aug 2010 Location: Oregon Posts: 12,771 Acura TSX - '06 Acura TSX 90 day: 24.19 mpg (US) Lafawnda - CBR600 - '01 Honda CBR600 F4i 90 day: 47.32 mpg (US) Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base 90 day: 21.82 mpg (US) Chevy ZR-2 - '03 Chevrolet S10 ZR2 90 day: 17.14 mpg (US) Model Y - '24 Tesla Y LR AWD Pacifica Hybrid - '21 Chrysler Pacifica Hybrid 90 day: 57.45 mpg (US) Thanks: 4,320 Thanked 4,474 Times in 3,439 Posts	I've been contemplating turbojet, to ramjet, to scramjet to rocket boost for orbital injection. Breathing air instead of hauling it with you is the most efficient way to gain initial speed and altitude. __________________ Gas and Electric Vehicle Cost of Ownership Calculator Give me absolute safety, or give me death!