I'm running a Saito 150 with a 16X8 prop and took off from a paved runway. Believe me, it had good air speed when it left the ground at 1/2 throttle. Maybe with the way I have the throws set-up it is actually more than half throttle but the throttle toggle was half way up when I reached flying speed. In fact, I made most of the flight at 1/2 throttle since I didn't do any aerobatics on the first flight except for a couple knife edge's. I actually never pushed it to full throttle during the first flight.

-Matt