Crab,
Still alive and kicking matey. I remember the demos well. Static droop allowed in the gem hmg, no static droop in the astazou. The 701 series in the Apache has an impressive tq sqike if you arent careful. The digital control unit, not a full fadec, controls the tq spike when over the 100% mark but its rather easy to get a 30% tq swing when happily winging it around in roll and pitch (for other reasons of course). Hence the questioning of why does it do that. I have heard a few different reasons over the years and thought the experts would give me a defining answer. Of course to your normal 'student' it is easy enough to prove any of the answers to their satisfaction, but to the more enlightened the awkward question can always upset the board work.
Winnie,
I am inclined to think spinning objects/gyroscopic effects are something to do with it. I am waiting for someone to prove it to me
