Larry Wood, King Air 350
We got our 350 back from Stevens Dayton with the XP67A. I flew the trip from Dayton to Georgetown along with another 350 with 60A’s at the same altitude. Looking at Flightaware, both planes at FL280, I was roughly 40KTS faster. Total fuel burn on the other 350 was 372 gallons with a flight time of 3:40. My fuel burn was 446 gallons and 3:08 flight time. I would have gone higher to save fuel but I wanted the comparison at the same altitude. Owner took his first trip the to the Kentucky Derby and commented he liked the performance and that the noise level was lower in the cabin.