Hi all
Hydrazine! Jesus wept! What about the airstart cart used for F4s and the like,built around an APU core and going from nothing to 10000 plus revs in about two seconds?! Guaranteed to wake the dead and get the engines rolling. I saw a Chippie started using the cartridge starter,JimGriff, and it makes a very satisfying BANG! followed by the usual Gipsy spluttering. When it doesn't go Bang! but goes HHssssss...,that's when the pilot and engineers go white and find excuses to be elsewhere.
regards
TDD