Pull Red Handle To Eject Posted March 7, 2007 Report Share Posted March 7, 2007 I am wondering if a Chinook gets pendular action & if there is any assistance in stability or is instability compounded by having the 2nd rotor system, either laterally or Longitudinally ? Cheers Quote Link to comment Share on other sites More sharing options...
KMWK Posted March 7, 2007 Report Share Posted March 7, 2007 When I was a crew chief on the Chinook back in the day, I'd have to say no. As a pilot, never having flown a Chinook, I would still think no. Quote Link to comment Share on other sites More sharing options...
Bob Loblaw Posted March 7, 2007 Report Share Posted March 7, 2007 (edited) I would think that the contra-rotating blades would effectively cancel any pendular action. Edited March 7, 2007 by Bob Loblaw Quote Link to comment Share on other sites More sharing options...
scubasteve Posted March 7, 2007 Report Share Posted March 7, 2007 I am wondering if a Chinook gets pendular action & if there is any assistance in stability or is instability compounded by having the 2nd rotor system, either laterally or Longitudinally ? Cheers OK...the aircraft is inherently unstable because of the fore and aft rotor systems. Both of these rotor systems want clean air, so the aft rotor system tries to come around and fly parallel to the fore rotor system. To combat this, there is a computer system that acutally flies the aircraft by converting pilot input into flight control movement. When this computer system is selected off or malfunctions, you really notice it, especially those in the rear of the aircraft. It really is more complex than that, but difficult to explain withough going on a while about all of the other influential factors which aid flight in a 47. As far as lateral or longitudal instability, this is usually a track/ balance issue. Hope the info helps. -Steve Quote Link to comment Share on other sites More sharing options...
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