Originally Posted by TTRotary
This prop stall business...how serious is it in actual use? I find myself needing to go to square props (e.g. APC-E 12x12, 14x14) in the calculators to achieve decent (80mph +) pitch speed at low amps for the scale warbirds. Also, how closely does pitch speed correlate to actual flight speed, realizing that variables such as available thrust and airframe drag come into play.
Finally, P-Calc (brantuas) seems to deliver massive thrust numbers. How accurate is this program?
With a square prop your acceleration is probably pretty poor.
I would look at the whole power system and select the right battery voltage, motor, ESC & prop combo to reach the desired speed.