well to all those who thought you would never hear from me again i have news i went down to ft polk to visit my daughter ist lt kayte thompson and son inlaw and they had a small jet club! i got to take off a Bvm mig 15 ,no buddy box, powered with a jet cat 60, flew well not too fast, i wont pUt a large turbine in mine i couldnt see the thing so i did loops rolls on THE flight no prob. i got hooked to a buddy box for landing just in case . came in downwind lowered power to 1/2 dropped gear and flap kept power on to the turn form base to final and held power at a little under half and deployed air brakes . That plane landed perfectly at 1/3 power no problems the buddy box wasnt needed. i am orderig my kit next week so this isnt that difficult, Now if the 15 had a 120 in it no way could i keep up with it. Its so funny i was told by one poster here this was imposible to transition form warbirds to scale jets, i did fine.those brakes are effective