Quote:
Originally Posted by aschen
Real answer, is depends on a lot of geometrical factors, the engine is canti-leavered off the side of the stand and the bolt spacing and effective moment arm of the motors cg changes the stress in the bolts
The practical answer is an m12 8.8 is good for something like 25 tons of tensile force. unless you have something crazy going on the bolt itself is not goning to fail
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Also, no need to tighten much - just adds to the stress.