I'm reading over the war diary of the Canadian 3rd Anti-Tank Regiment and have come across these two things: "FATs". These are vehicles for towing 17-pounders, but what exactly were they? Ford something? "BLR". One vehicle "had to be BLRd because of generator trouble, as we were unable to obtain a new part."
FAT is "Field Artillery Tractor" Field Artillery Tractor - Wikipedia I think it covers a range of vehicles rather than just being a single type/make Alistair