If you compare the plume shape and mach disc locations on Twitpic #1 versus Twitpic #2 and reference Aerospaceweb.org you can see the [Stiga's] nozzle is now over expanded, whereas before it was under expanded.
If you compare the plume shape and mach disc locations on Twitpic #1 versus Twitpic #2 and reference Aerospaceweb.org you can see the [Stiga's] nozzle is now over expanded, whereas before it was under expanded.
Is this to improve high-altitude performance?
ReplyDeleteThat's what I think.
ReplyDelete