# V22 Ospreys are Loud! **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [April 24, 2016, 9:55am UTC](https://boards.straightdope.com/t/v22-ospreys-are-loud/752985 "2016-04-24T09:55:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![GreedySmurf](https://avatars.discourse-cdn.com/v4/letter/g/a698b9/32.png) [@GreedySmurf](https://boards.straightdope.com/u/GreedySmurf)\ **Post date:** [April 24, 2016, 9:55am UTC](https://boards.straightdope.com/t/v22-ospreys-are-loud/752985/1 "2016-04-24T09:55:30Z")
Presumably tied to the fact that Obama is in London at the moment, I just had a V-22 fly over my building in East London. It was in helicopter mode, IE rotors were horizontal, and I was surprised at just how loud it was. I’ve heard plenty of helicopters before, which is why I was surprised at just how loud the V22 was. Presumably it’s the double rotors that cause it? I’ve never heard a Chinook before to compare. ---
**Author:** ![FairyChatMom](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/fairychatmom/32/21906_2.png) [@FairyChatMom](https://boards.straightdope.com/u/FairyChatMom)\ **Post date:** [April 24, 2016, 11:19am UTC](https://boards.straightdope.com/t/v22-ospreys-are-loud/752985/2 "2016-04-24T11:19:56Z")
My last job was on NAS Patuxent River where they do flight testing of the V-22. Our building was literally right next to the taxiway and there were 2 Ospreys in the hangar a few hundred yards from us. When those suckers were operating, our whole building shook! Yep, they’re loud! ---
**Author:** ![Ale](https://avatars.discourse-cdn.com/v4/letter/a/f19dbf/32.png) [@Ale](https://boards.straightdope.com/u/Ale)\ **Post date:** [April 24, 2016, 11:53am UTC](https://boards.straightdope.com/t/v22-ospreys-are-loud/752985/3 "2016-04-24T11:53:48Z")
Smaller rotors than a conventional helicopter spinning faster make more noise, also the exhaust from the engines is directed down, so again more noise; I would guess a flyby in horizontal flight configuration would be much more quiet, for certain values of quietness of course.