This link is a collection of towball weights for the MkII Tvan done by Owie on the Tvan forum
http://www.tracktrailerforums.com/index.php?topic=408.0Just thought I'd share my findings of the tow ball (hitch) weights I recently measured. I set up a load cell attached to a shed roof structure to measure the weight at the hitch (at tow height), with a load cell accurate to 1Kg.
2010 Mk II TVan short drawbar. Queen size inner spring mattress, Diesel heater with 8lt Diesel tank next to Gas cylinders.
Spare wheel is a steel rim 31 10.5 R15 BFG AT. 12v Battery is a N70 cranking battery.
I was curious to see the difference various jerry can weights/locations made. I generally do not fill the front jerry cans.
I use the LHS one for a rubbish bin (an old jerry can with the top cut off and a canvas cover), the centre one is the spares box (an old jerry can with the top cut off and a canvas cover), the RHS jerry can I fill only if needed.
No Gas, No water = 140Kg
No Gas, No water, 1x Front Jerry can = 154Kg
No Gas, No water, 2x Front Jerry can = 161Kg
No Gas, No water, 1x Rear, 1x Front jerrycan = 150Kg
No Gas, No water, 2x Rear jerry cans = 132Kg
4.5Kg + 2Kg Gas Cylinder, 70Lt water, no Jerry cans = 149Kg
4.5Kg + 2Kg Gas Cylinder, 70Lt water, 1x Rear jerry can = 144Kg
4.5Kg + 2Kg Gas Cylinder, 70Lt water, 2x Rear jerry can = 140Kg
4.5Kg + 2Kg Gas Cylinder, 70Lt water, 1x Front jerry can = 163Kg
4.5Kg + 2Kg Gas Cylinder, 70Lt water, 1x Front, 1x Rear jerry can = 158Kg
4.5Kg + 2Kg Gas Cylinder, NO water, 2x rear jerry can = 152Kg