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I've been wanting to try adapting my already flown X-20 dynasoar to a titan booster. The X-20 is 11 oz rtf with a 24mm E-6 motor, 9 oz rtf without motor, it is 30" long and 20" wingspan, made of 3mm and 6mm depron, and approx 4" diameter. Booster will be 8" diameter.
It's very lightly constructed so I can't just slap it onto a normal rocket booster and fly it on high impulse motors or it will come apart. My though is to construct a large booster using model airplane construction, depron centering rings, carbon spar depron fins, 6mm depron stringers between the centering rings, a 29mm tube up the middle for support and a 2mm depron skin.
I'm planning on having the chute in a 4" compartment under the dyna soar with a capped coupler as a nose cone, and on ejection pop the glider off and deploy the chute and have it come nose down. Glider will attach via three carbon rods and aluminum guide tubes.
It's going to be very tough to keep the weight down, I've got a spreadsheet and am counting ounces already. It may turn out to be a complete failure, either over weight or not stiff enough, but if it works it will open up some other large designs I want to do that can fly on smaller motors.
If all else, it may bring you all some laughs.
here we go, rear centering ring and depron rings cut and the fins cut out. Should be around 110" long and be based on a photo I have, but since these were all concepts, i'm not going to get too hung up on scale.
Idea is to have the centering rings about 8" apart with 1" stringers, between each centering ring at the outer circumference and have 8 stringers around. This will give extra surface area to contact cement the 2mm skins to and help with stiffness.
Here are some simulations.
Frank
It's very lightly constructed so I can't just slap it onto a normal rocket booster and fly it on high impulse motors or it will come apart. My though is to construct a large booster using model airplane construction, depron centering rings, carbon spar depron fins, 6mm depron stringers between the centering rings, a 29mm tube up the middle for support and a 2mm depron skin.
I'm planning on having the chute in a 4" compartment under the dyna soar with a capped coupler as a nose cone, and on ejection pop the glider off and deploy the chute and have it come nose down. Glider will attach via three carbon rods and aluminum guide tubes.
It's going to be very tough to keep the weight down, I've got a spreadsheet and am counting ounces already. It may turn out to be a complete failure, either over weight or not stiff enough, but if it works it will open up some other large designs I want to do that can fly on smaller motors.
If all else, it may bring you all some laughs.
here we go, rear centering ring and depron rings cut and the fins cut out. Should be around 110" long and be based on a photo I have, but since these were all concepts, i'm not going to get too hung up on scale.
Idea is to have the centering rings about 8" apart with 1" stringers, between each centering ring at the outer circumference and have 8 stringers around. This will give extra surface area to contact cement the 2mm skins to and help with stiffness.
Here are some simulations.
Frank
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