Thanks for the info guys. I used the 370, but I only had a 1300 mAh battery which was 1.5 ounces over the recommended weight. I was flying over grass so I opted for a hand launch from my Dad which resulted in a 6 foot death plunge. The fuse broke in half in front of the wing. After a while I finally repaired it, put in a 450 motor and 640 mAh batt and it flew great! I then tried the 1300 mAh with no weight problems at all. Love the plane now. Thanks for the tips on its fragility. I'll check out the DW Juka.