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.
By the way, the total impulse of the USC rocket ground-tested was 42,000
*lbs*-sec. This is half that of the Gofast rocket at 44,000 *kgf*-sec. that
was able to reach the 100 km Karman line:
http://www.astronautix.com/g/gofast.html
This rocket is essentially the same as the Cesaroni solid used on the
SpaceLoft XL commercial suborbital rocket:
https://www.freelists.org/archives/roc-chat/01-2014/pdf0PNbprKh1r.pdf
However, the USC rocket uses carbon fiber casing which saves about half
the dry mass off the casing weight, so it may still be able to reach
suborbital space.
Bob Clark
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.
