Thankyou guy .yes I'm very happy to get something in the air that myself and a friend have made .in the beginning we thought about power ,thrust and weight .but in the end I just made the lightest frame I could with out sacrificing safety. I will weigh the frame tonight and put up the results but the main result for me is still to come .how long can we fly under power at the end of the day that's all that matters . The test pilot weighs about 17 stone so I know take off power is spot on just need to get same pilot to fly round till he drops lol then I know my self at 13 stone should get a little longer out of it .obviously the type of wing will make a difference aswell .