Guys,

 

The misprint is that it is suppose to be a TSIO550.  Let's use a little common sense here.  You can't have a pressurized airplane without it being turbo charged. 

 

Also,

 

If you take an IO550 powered ES.  It will do about 169 KIAS at 8000 ft.  Guys, you have the flying airplanes....(mine is not :(    ...I can only go on what I have experienced in N407L.   A TSIO550 powered ES will at 31" and 2500 will do about 176 KIAS at 8000 ft due to the extra 40 horse power.  If you take 169 KIAS at FL250 as powered is maintained, that is roughly 254 knots.  At 177 KIAS, that is 266 knots....pretty fast.  There are other factors to compensate for, but I have heard from a couple of TSIO550 powered ES's that they can cruise at 12000 at 220 knots (this is 177 KIAS). 

 

If these aren't correct, let me know where I'm wrong.  I don't know of an ES driver that has been above FL180 even with the a TSIO550.  Please be my guess and put the mask on and take her up to FL250.....I think you will be pleasantly surprised how fast this airplane is.

 

Ed....since you have a TSIO550 powered airplane, can you do the test, or we can do the test at the fly-in...I will be more than happy to pay for the gas. 

 

Just as a side note, here is what a 169 KIAS get you at different altitudes.

 

  8000  196 kts

12000  210 kts

18000  230 kts

22000  243 kts

25000  254 kts

 

The numbers at 8, 12, and 18 have been validated by numerous people I have talked with. 

 

My 2 Cents,

 

Timothy Ong