apexlined Posted December 14, 2010 Share Posted December 14, 2010 Why we can only low speed ground idle when speed below 30 knots and shutting down engine when speed 20 knots for C130H? Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted December 14, 2010 Share Posted December 14, 2010 Easy answer NTS is cammed out in the ground range. We have a "combined wind and taxi speed of 20 Knots" limit. Engine shutdown (ground stop) is an induced power section failure (less energy driving the prop) so NTS is induced. (we check this each shutdown) Going to LSGI "looks" like a power section failure to the prop (less energy driving the prop) so NTS is induced. NTS is cammed out (below flight idle) so there is no way to "slow down" the prop (increase blade angle) so the driving force of the prop coupled with the "Wind" force can induce NTS at a level to accomplish prop decouple. Quote Link to comment Share on other sites More sharing options...
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