Canon EOS 5D Mark II
ƒ/7.1
130 mm
1/3,200
500
Each letter is a doubling of total impulse. So a Q is about 2^17 Estes A engines.
Scott Hertel and Guy Hardy’s 8″ Min Diameter Rocket called 8URKT flew successfully to 81,000 ft. MSL
Q-motor 8URKT Rocket Launch at BALLS 25
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Here is their
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