I typically get better speeds than that at 65% when over 10000 ft in my
turbo T tail. Typically 16mph, and 180 to 200 mph TAS. Its really fun at the
end of a trip when you cut the throttle way back, and cruise down at Vno
while sipping gas.
My E6B says that I can get 175mph at 5000 ft and 20C when my IAS is 140 kts,
and I don't even need oxygen.

"Nathan Young" wrote in message
...
On 14 Jul 2005 07:08:34 -0700, "Paul kgyy"
wrote:

My low wing Arrow gets about 14mpg at 75%, 100 ROP, 175 mph. If I'm
willing to accept 150 and run LOP, I can get it all the way up to 16
mpg. But I don't own a car.

175mph is motoring for an Arrow. T-Arrow? Or do you have speed mods?