this plane best flies at 32% engine power but can hit speeds faster that 700 mph but be warned, the front wings fall off. I haven't tested at 100% engine power for a long period of time but the faster you go the more the plane tilts up so u have to correct it during flight. I say the flight difficulty level of flying this plane is between intermediate and hardish. It depends on the pilot. One of my fastest most stable planes so far. Pls rate and comment below and dont forget to down nload. THIS PLANE IS BEING SUBMITTED FOR THE "USE ALL OF THESE CHALLENGE". PLS VOTE FOR ME TO WIN THIS CHALLENGE IN THE COMMENTS BELOW. Thank you. :) PS: this is the correct version of the plane for the challenge. both version fly the same.