I did some speed testing today with my Extra 330 powered by a DA 50 and Zinger Pro 22x10. This was accomplished using a GPS system with a max and average speed recorder.

I was quite surprised by the results.

My normal cruising speed, 1/3 throttle or less........68mph.

HIGH speed pass, with a shallow dive but NOT full throttle.....103 mph !!!

It just doesn't look that fast in the air....I guess the size of the plane makes it look slower.

Just wanted to pass on my results for anyone interested.