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Sikorsky X2 snatches Lynx's speed record

Gatordev

Gatordev

Well-Known Member
pilot
Site Admin
Contributor
Lawman said:
Bleeding edge speed with attack helicopters is often much more effected by flat plate drag than by the rotor system going into retreating blade stall. The only way Im gonna see Vne in an Apache carrying an FCR and a respectable load is to put the aircraft into a steep dive.
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VNe and blade stall aren't the same thing. You can get blade stall well under VNe and you can get to and exceed VNe w/out inducement of blade stall. I've experienced blade stall at ~80 knots. Why? Because we were heavy and at 10K'. Then in a completely different helo on a completely different day in a completely different country, we were flying at ~10.5K' and ~100-120 knots w/ no blade stall.
 
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