SB 1 Defiant Helicopter

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Defiant also got, or soon will have a new power plant in the form of a Honeywell HTS7500 7500shp turboshaft engine…


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Fly-by-wire, which would make me a little nervous after the Russians figured out how to interfere with the stabilator computer on the UH-60. The entire fleet was grounded until Sikorsky shielded the critical components. Several Blackhawks were destroyed in Granada, not by interference but by a stupid "quick fix". I'm sure our adversaries are still looking at how to bring us down with microwave bombardment.

BTW, the prop on the Defiant is reversible for deceleration which also keeps the pitch attitude down during landing. If the pusher prop is shot out, a clutch can disengage it (continue mission). As always, with highly automated flight controls, when thing go bad you better know how to aviate.
 
This new experimental helicopter is very promising, with counter rotating rotors and pusher prop that can be disengaged.

Lockheed Martin Sikorsky-Boeing Photo

Last program I worked with Lockheed, Sikorsky, and Boeing was the RAH-66 Comanche. That ended well.
 
With twice the rotor surface area, does this make it more susceptible to small-arms fire damage/failure?

Can it still auto-rotate down, as with a 'normal' design?
 
Guessing this is the outcome of the old X2 program?

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If I ever get back into flying RC helis, I might have to try to build a co-axial rotor.
 
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