Hi - pretty new to rocketry and just discovered that OpenRocket (and the Estes Engine Chart I found online) gives the mass of a D12-5 as 42.6g or 43.1g, while the motors I've got in my hand weigh in at 48g. Have D12's gotten heavier since official figures were last published or are tolerances really that approximate?
Estes D Engines: published vs. actual mass?
- Thread starter car3107
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