Re[2]: Re: Multiple engines (was RE: Liquox)

Pierce Nichols wrote:

PN>         You are thinking of two-axis gimballing with cryogenic propellants,
PN> which is hard. One axis gimballing with room temperature propellants
PN> uses the same technology as jet vanes, minus the high temperature bits.

In the small and medium vehicles, John used rather long braided PTFE tubing
to bring the peroxide to the engines. These would certainly be flexible enough
to allow for gimballing.
But personally I think his main problem at the moment is not the choice of
a appropriate arrangement but the fact that whatever system he is going to uses
the engine, or engines have to work in a consistent and predictable way.


Hans Ulrich Ammann
mailto:[email protected]
http://www.spl.ch