Not to mention Starliner (Atlas V 422) or Dream Chaser (552), just in case
you're concerned that politics may be seeping into NASA's analysis of SLS's
SRBs.
As of a few years ago, the Russians were proposing solids for -- get this --
parachute-less controlled soft landings of Federatsiya (known at the time as
PTK NP), the proposed new crewed spacecraft. "Throttling" would be achieved by
vectoring motors in pairs to control cosine losses. The reason for solids
rather than liquids was a requirement for one-year lifetime in orbit.
On Mon, 5 Feb 2018 at 00:00 William Claybaugh <wclaybaugh2@xxxxxxxxx> wrote:
Space Launch System.
On Sun, Feb 4, 2018 at 2:57 PM John Stoffel <john@xxxxxxxxxxx> wrote:
Do you think they'll ever man-rate a system with solid boosters again?
I just can't see it happening, even if they're smaller ones that
produce much less of the total thrust at liftoff.