Quote:
Originally Posted by aldaron327
There's one thing that would make a "stealth helicopter" stick out on radar that they can't fix: Rotor blades turning at hundreds of RPM. Those blades turning really stand out on radar.
Also, I'm not sure how much noise mitigation they've come up with over the years but from personal experience, a person can hear a helicopter coming from pretty far out depending on wind direction/velocity, altitude of the aircraft, etc.
Still, it's a cool concept... I just don't think that the physics of how a helicopter flies supports it.
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Coming from a former Navy Helo crewman who was able to work with Navy SEALs on Combat SAR training...
You'd be surprised what we can do do minimize the sound signature on approach...
Now in a hover that's a differnt story... you are obviously most vulnerable and noisy when in a hover.