Greetings gents,
W.r.t. the thread...the only machines that I have personally seen doing any form of aerobatics where back in S.A where I saw my instructor do consecutive roll's in a BK117 and on another occasion I was witness to the ROOIVALK doing a barrel roll followed by a loop.This is part of it's demo that it does at airshows all over the world. Also included in it's demo is a 60 -70 knot climb out..backwards !!! and a demo of sideways flight at the same speed...
Not to shabby huh ?
Interesting thread by the way.
Cheers.
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** To hover is devine but to MOO is bovine **