SRM - Solid rocket motor design Apr.5/23.Richard Nakka's Experimental Rocketry Web Site They only cover a common range of rocket diameter and weight.Richard Nakka's Experimental Rocketry Site They require knowledge of total motor thrust, and assume medium Cd, air density, a neutral thrust curve, an average burn rate. Much simpler charts (only 5 pages!) based on motor total thrust ranges were prepared by Dean Roth and distributed by Tripoli Wisconsin as part of a larger packet of RSO information. They can be a little difficult to use, but very detailed, with 221 pages of tables.Ĥ. These are charts where you can look up altitude and time to apogee based on the selected Aerotech motor, rocket diameter, drag coefficient, air density, and rocket mass. Andreas Mueller made Performance Nomograms for rockets with Aerotech motors. Online flight simulators, like or The Rocket Simulator.ģ. It is a full-featured rocket design (all internal and external components) and flight simulation program.Ģ. SpaceCad is a commercial program that costs $80 and runs on Windows. It is a full-featured rocket design (all internal and external components) and flight simulation program. RockSim is a commercial program from Apogee Components that costs $125 and runs on Windows and Macs.wRASP is derived from older programs going back to an original BASIC program written by Harry Stine in 1979. wRASP is another older and free Windows program that simulates the flight of a rocket in one dimension (one degree-of-freedom), allowing determination of how high a rocket might fly with a particular motor and what the best ejection delay time might be.WinRoc is a free, older, but but simple and fast to use suite of Windows programs for flight simulation, and determination of optimal ejection delay. Algorithms are tuned with wind-tunnel and actual flight data by the authors. RASAero is likely the most accurate simulation program, with the ability to accurately calculate aerodynamic coefficients as a function of speed.
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