different tire size VS speed

[Snowbirdxx]

We had a discussion about tiresize and speed on another thread.

Here the numbers of my plane with 1980 Lbs weight, 850 with fairings, 3200TW with fairing and Ultra MT.

 

[belloypilot]

That’s impressive. What was your fuel flow?

 

[Snowbirdxx]

FF is 26l/hr thats 6.74 gal/ hr Avgas being 11$ per Gallon but I an using Cargas at 4.20/ gal


I am still having a static error , Airspeed reads about 5 mph too low