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A comment on Why did the half-plane, half-helicopter not work?.

Re:Why did the half-plane, half-helicopter not work? by detaro on Saturday February 13, 2016 @06:11PM (#11096165)
What's the state of the art in active anti-noise technology for helicopters? I've read about that kind of thing a few times, but don't know what actual numbers are.
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Re:Why did the half-plane, half-helicopter not work? by TheOtherHobbes on Saturday February 13, 2016 @08:41PM (#11096704)
It would be hard to anti-noise the Rotodyne because it literally had small jet engines on the end of each rotor - which was why it so incredibly loud in VTOL.

I can't find actual noise figures for it, but I suspect it wasn't all the much louder than some modern jet liners. But jet liners land at out-of-city airports, and the whole point of the Rotodyne was that it could land in the middle of a city - and you're not going to get certification for that for a plane that can be heard miles away.

I'd guess it was unbearably noisy inside the cabin too.

Here's a sales video, with vintage cheesy music and equally vintage British accents:

https://www.youtube.com/watch?v=u4Z1UnRZDyo

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