Originally Posted by
Matvey
Funny you should mention this. I notice the H130 much more than the 407s (or 350s), mostly because of what I think is the whine of the Fenestron. The lone 130 is the only Fenestroned helo that regularly operates from the pad, so maybe it just sticks out against the background noise.
Yes it is a distinctive sound but not one that makes people look upwards who do not know it. As said previously as well the fenestron whine depends on how you fly her pretty much-can be indistinctive enough to sound like a bike or truck passing by due the sound or can scream like a African Grey looking for attention esp during autos. Point is its not thats she doesnt have a noise signature, point is its not a sound generally associated with a helicopter and yes below 86db.