Thanks buddy, I haven't tortured myself enough lately. I modified the protoglider. It now has two small vertical fins made from card stock ,small stick on elevons and a longer front dowel. First toss with dowel in original position and two elevons up---short flight to stall. I suspected this would happen so on the next few flights I slowly worked the dowel out until it was about 6 inches out. It flew well in this configuration,also the small vertical tails straightened out the wandering yaw problem. On the actual rocket the tails will be clear. This glider is very close to the actual size of the rocket--corrections will be made for mmt sizing. Here are some pics
View attachment 272518View attachment 272519View attachment 272520 the 4 pink squares are the elevons--I only used 2---The yellow square is the CG and the 3 green squares mark the relative position of the motor.The motor is well ahead of the free flight CG so it's added mass should help with powered flight stability. Also the longer neck profile will help with powered as well as free flight stability. Well that little part of the experiment is done . Now it's time to refine the profile a little ,retest, and build the rocket. This little glider has a 3 ft wingspan and weighs 1.9 oz I figure the rocket with balsa wings/paint/mache/ and mmt will come in around 7-8 oz. the higher wing loading "should" help a little with flight stability and increase flight speed. More later---H