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Turboprops
Aircraft P46T (PA-46-310P JetProp turbine conversion)
Airline Holland Aero
Name Travis Holland
Date January 2008
Groundspeed 403 kts
Notes

Aircraft was N323ML, location was in level flight between 62N040W inbound to 63N030W (between Greenland and Iceland).

It was the highlight of my day after intermittent GPS RAIM failures (dead reckoning over the North Atlantic) and vacuum pump failure over 600 miles of open water en-route Keflavik Iceland.

The PT6A-21 engine was in this airframe, rated top KTAS 245, although I was getting 258 KTAS due to the very very cold temps (-55C at FL270).