Phil
Surely you must be able to purchase something you can inlude in your rig, an element, with a known failure rate, or measues the load. Something in your rope behind the hook, that gives you a load measurement, regardless of how many layers of rope are on the drum.
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Bluebell
Carrier Armoured O.P. No1 Mk3 W. T84991
Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6.
Dodge WC55. 37mm Gun Motor Carriage M6
Jeep Mb #135668
So many questions....
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