1800kg/4000lb seems reasonable as a gross axle weight
rating, our 1975 Taurus tinwall 17.5 ft, single axle
, (with oven, furnace
, shower, and accommodation for 5) weighed in at 3500lb, fully loaded (with clothing, dishes, food, full water, propane
tanks and battery) ready to go. I ran the complete pkg, truck and all, over the scale, then just the truck, and did the math. Remember, F/G, if it's hand layup cloth, can be reasonable weight
, but gun blown (chopper) can be inconsistant (usually thick) in places, and therefore heavy.