For a King Air. On our Decent out of FL280, riding the barber pole, we manage 382 knots over the ground. We had her @ 390 the other day but I didn't get photos. As far as flying around in King Airs go, this is pretty fast. It's as fast as I've ever been flying.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/44389375@N00">Shawn</a> from Airdrie, Canada
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/cdnav8r/525775280/">Screamin fast!</a>