B71,
Having just got back from theatre I can assure you that the PA for most FOBs starts at about 3500ft (KAF = approx 3300ft PA), and most ops are being conducted way above that often pushing 6000 - 7000 ft PA. With temps currently ISA +35 at most FOBs, you do the maths - I just don't think your Huey II will cut it.
Back to the thread, the reason why the MRH-90 doesn't work is because the pilots have been using the wrong engine shut-down procedures. See the latest link from the Eurocopter CEO speaking at Farnborough yesterday.
Farnborough 2010: Eurocopter diagnoses Australian MRH90 engine failure | Shephard Group
zic
