Yeah, I was watching some you tube vids of it. Sounds cool. Some of the video was shot inside the aircraft and you can’t here the rotors, at least on the video.
When it’s in helo mode they are very much like H53’s, you can hear and FEEL them coming!
Groot
The closest I’ve been to one was while I was in Amarillo TX. I was at one of the truck stops there (I was truck driver a few years back) and heard this strange noise. It didn’t sound like a helicopter or aircraft. It was about 5 miles away at what I found out was the V-22 assembly plant.