Quote:
Originally Posted by ShrimpBurrito
Using the calculation and reference in the article, the grade 5 3/8" bolt that is used to fasten the safety chain to the tongue (and also the tongue jack) has a sheer strength of 8295 lbs. That is enough to pull the trailer straight up off the ground, so it would seem that one such bolt would be plenty to secure the safety chain.
|
Shock load ("snapping" the chain) as opposed to staic load (the weight of the TM) will play a big factor here. If I snap the chain fast enough (as might happen in a disconnect accident), I can generate enormous shock loads, far in excess of the weight of the TM.
Bill