I have been flying mine now for a few months with well over 75 flights using a DA60 with a 22x12 prop and I can tell you it flies it just fine. The plane weighs in the neighborhood of 28lbs and I can get a good 125mph+ on a straight and level pass. I have my timer set for 8 minutes with a 32oz tank and have about a little less than 1/2 tank left! It will amaze you just how slow this plane will fly, especially at half flaps. I had the Aero Works P-51 which flew fantastic also, unfortunately lost it in a mid-air, so replaced it with the H-9 and have been very happy since.