[exabrial]

I've ridden on a King Air a few times. Surprised how fast the thing was, traveling west to east we sustained 600mph ground speed. Also pretty quiet interior given it's powered by turboprops.

[cpncrunch]

350mph true cruise airspeed for the stock aircraft, so I suspect you had a bit of a tailwind there.

[lostmsu]

I bet on km/h vs mph mistake.