How refreshing!! An on-topic post.....you don't see many of them these days. A friend has his Rocket Vision Pegasus just about ready to fly (mine's still in the "to be finished" pile). He's doing rocsim to guage engines. I suggested he ask here what motors you lucky few have used in your flights & with what results. I could get the finished of his if needed. -- Richard "my aching back!!" Hickok
I've flown one about 10 times on a G 80.....it started out flying like garbage, but I kept adding nose weight to correct the coning and all other aerodynamic antics. I don't have it nearby as it's out in the shed, but I seem to recall 22 ounces. Now I don't recall if I added 22 ounces of nose weight or the total weight of the payload section was brought up to 22 ounces. A word to the wise.....fibreglas he bottom 3 inches of the rocket as the fins will lever themselves and destroy the body tube on a regular flight landing. Mine came out of the sky, seperated, with no chute and had minor damage after fibreglassing.
I've got a second which I'm updating with a 38 mm mount to fly Pro 38s in......
IIRC, Bill was adamant about the fact that this rocket will fly with only a few different motors due to it's rather precarious stability factor. Does anyone remember if what I am saying is correct?
They did a lot of work to try and find a happy medium for flight, tell me that wasn't a fun job. The tail fins were canted about 5 degrees to offset the lift of the wing assembly. Remember the real Pegasus flies horizontally through thinner atmosphere. When I first started flying it the thing was a poor excuse for a vertical flying machine, and brought a few chuckles from the distinguished guests and dignitaries. Since the first flight I've increased noseweight by 2 ounces per flight and found that the rocket now actually nearly behaves on flight but still begins coning on engine burnout. It flies to around 400 feet, so to increase altitude an increase in thrust is necessary. Using the first Pegasus as a benchmark I'll start with near the same nose weight and move forward from there. I've heard of some folks flying the thing on G - 104s . I also believe by tweaking the rearward edges of the wing assembly some compensation can be made to improve it's aero behavior. If it doesn't work, I'll have parts. :-)
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