Oh man so cool, there are great footages on YoyTube under Nasa Dryden I think. Like old research videos on flat spins, aeroelasticity, one these was in there th

Oh man so cool, there are great footages on YoyTube under Nasa Dryden I think. Like old research videos on flat spins, aeroelasticity, one these was in there the Vertol 76 that's a cool video that bubble canopy and those twin rotors.