[AR] Re: Regarding Univerity solid rockets for cube-sat launch to orbit
- From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
- To: Arocket List <arocket@xxxxxxxxxxxxx>
- Date: Sat, 3 Mar 2018 15:15:27 -0500 (EST)
On Sat, 3 Mar 2018, William Claybaugh wrote:
...I concluded Liquid Injection was more achievable than pivoting the
nozzle. Both are much more expensive than fins in the exhaust or moveable
canards which are probably the lowest cost; cold gas jets may be the next
lowest in cost if one wants exoatmopheric steering.
Hot gas jets are also conceivable, although more complicated. The second
and third stages of Scout were steered by peroxide RCS systems. (The
first stage used the V-2 combination of exhaust vanes and fin control
surfaces; the fourth stage was spin-stabilized.)
Scout was actually quite an interesting rocket, although technical details
are often hard to find. It came out of the NASA sounding-rocket group
rather than the missile contractors, and it made a number of design
choices that seem unorthodox now, yet it was quite successful (after the
usual teething troubles).
Henry
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