[AR] Re: Flying to Orbit with Hydrogen?
- From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
- To: Arocket List <arocket@xxxxxxxxxxxxx>
- Date: Tue, 24 Dec 2019 00:11:11 -0500 (EST)
On Mon, 23 Dec 2019, Craig Fink wrote:
Hi Henry, what are you talking about? I'm not talking about the Rocket
Equation, Flying to Orbit in the Atmosphere.
My mistake -- I thought we were talking about practical ways of reaching
orbit, which invariably(*) begin by getting up out of the atmosphere
as quickly as possible, and thus inevitably involve the rocket equation.
(* For self-contained vehicles, anyway, disregarding things like space
elevators... )
Flying to orbit in the atmosphere is a wish-fulfillment fantasy for the
aviation crowd, not even remotely practical at this time. Hydrogen or no
hydrogen, at Mach 15, an oxygen atmosphere is not your friend.
Henry
Other related posts: