Caterpillar D6A

[Jakko Westerbeke]

Originally Posted by David Herbert

Those drawings are marked Caterpillar Tractor Co. I had thought that the armour was designed, made and fitted in the UK, possibly by Jack Olding Ltd.

That is a common misunderstanding. Jack Olding was the UK importer for Caterpillar, and fitted some D8s with waterproof hulls to use as BARVs, which is where I suspect the confusion comes from. However, as I understand it, the D6(Armored) and D7(Armored) were entirely built by Caterpillar itself in the USA. Caterpillar having made drawings of the armour is a strong indicator, IMHO. (Note that there are some mistakes in the drawings, mainly the rear view: the hydraulic cylinders are too far apart, most likely because someone overlooked that the bonnet is narrower than the rear plate.)