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Old 17th Sep 2017, 13:01
  #58 (permalink)  
chopjock
 
Join Date: Nov 2008
Location: UK
Age: 62
Posts: 907
H300 run up checks include a throttle chop to check disengagement of sprag clutch.
That's good for pistons as a throttle chop splits the needles quickly. Different on a 500 though as the turbine takes a while to wind down and the light inertia blades slow down with it and you don't get much of a split.
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