[AR] Re: Regarding Univerity solid rockets for cube-sat launch to orbit
- From: Wyatt Rehder <wyatt.rehder@xxxxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Sat, 3 Mar 2018 10:33:28 -0900
The method likely could be modified to gimbal a movable nozzle only as is
done with large solids. A big question though is whether the method would
work for rockets at supersonic speeds.
Modified in the same way that a Ford Fiesta could be modified to haul
a semi trailer. The long pole in the tent is the nozzle assembly and
the gas seal between the nozzle and the casing. A relatively easily
movable gas seal that can handle several thousand degree working fluid
at a thousand psi+ is a rather complicated thing to design properly.
Just gimbling the whole engine like in a liquid or the whole solid
casing relatively speaking, is an easy thing to do. The controls bit
is a fair amount harder than the mechanic construction of it though
and he's definitely put some great work into the system.
I've talked to him a bit about his controls, they haven't so far been
designed for supersonic flight; as that hasn't been his flight
envelope so far.
On Saturday, March 3, 2018, Darren Longhorn <darrenlonghorn@xxxxxxxxx>
wrote:
On 3 Mar 2018 07:14, "Robert Clark" <rgregoryclark@xxxxxxxxx> wrote:
<Snip>
And this company has shown rocket stability using engine gimbaling is
possible even with small solid rockets:
https://m.youtube.com/watch?v=9UqXtIlHfzU
Well, sure, because the motors in questions are small enough to gimbal the
entire thing. I can't see that scaling very well.
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