Sikorsky-Boeing SB-1 Defiant

Helicopters and tilt-rotor aircraft
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boilermaker

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  • Joined: 22 Jul 2015, 18:12

Unread post12 Nov 2020, 05:44

Looks like we are at BERP IV iteration. I had no idea about this development. I wonder what kind of tip they use for these new compounds. The blackhawk has the simple swept tip.

https://www.flightglobal.com/berp-iv-gi ... 52.article

https://dspace-erf.nlr.nl/xmlui/bitstre ... sequence=1

https://www.semanticscholar.org/paper/B ... c9adc?p2df
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AHS2009_BERPIV_Dynamics_Moffatt.pdf
Aerolasticity of BERP IV
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marauder2048

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Unread post13 Nov 2020, 00:42

boilermaker wrote:Looks like we are at BERP IV iteration. I had no idea about this development. I wonder what kind of tip they use for these new compounds. The blackhawk has the simple swept tip.


HH-60W has the same growth rotor blades found on the S-92. Same anhedral.
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