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Autos and Rotor Stall
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28th Apr 2010, 10:02
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Shawn Coyle
Join Date: Dec 2001
Location: Philadelphia PA
Age: 73
Posts: 1,835
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Mungo:
Nearly all (new design) articulated heads have flap restrainers to prevent the blades from flapping up too high.
Even the S-61 had them, and it goes back quite a long time…
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Shawn Coyle
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