Any chance of finding CMP FAT project?

[Lynn Eades]

I don't know much about them really. 1940,development under serious pressure, 1941,These two models were the lend lease models that carried our guys through the North African campaigns. 1942. Improvements from lessons learned. Just like Dodges. 1941 1/2 ton WCs, weak axles, steering boxes, high silouette. etc. 1942 3/4 ton- great!

[rob love]

The 11 cab was based on British guidelines but with larger North American 6 cylinder or the mighty Ford V8. Access to the engine was difficult, the foot area for the driver extremely cramped, and the cabs were hot. To do any major work to the engine it was expected you would remove the cab.

Cab 12 offered better ventilation, slightly better access to the engine, but still retained the cramped pedal arrangement.

Dec of 41 came the "all Canadian" 13 cab which used production and design methods better suited to North America manufacture. The cab 13 is perhaps more iconic as a CMP with it's recognizable reverse slope windshield, but any of the CMP series are unique and tell a story.

Any version of the artillery tractors is desirable, despite the cramped entry of the early cabs.

[Niels V]

Correct as mentioned above the 11/12 are a bit fun to get in to and cramped feet space but once you are in the drives seat it the the larges/roomiest cab of all cmp's

[rob love]

Originally Posted by Niels V

Correct as mentioned above the 11/12 are a bit fun to get in to and cramped feet space but once you are in the drives seat it the the larges/roomiest cab of all cmp's

I find the large cab does little to counter effect the extremely cramped foot space. My very first CMP was Ford cab 11 cargo, and I remember the welts of the boots constantly catching each other when trying to operate the pedals.

[Lynn Eades]

I could do with someone explaining (photos?) the various rear end variations / models. This might help John as well.

[rob love]

Lynn

I will use the text and photos from the holy bible of CMPs: the AEDB Design Record.

Here is the text re gun tractors in general:

[rob love]

So the 7A1 and 7A2 were variations used on the early 11 and 12 cabs.
With the Cab 13, they went to the 7B2 body. Later, in order to correct some of the deficiencies, there was a final body in the 101 wheelbase, the 7B3, which is not commonly found in Canada.

There was a plan for a longer CMP 150" 6x6 wheelbase tractor based on the 7B3 body, but I'm not sure it ever came to fruition. The reasons for the longer one was to increase capacity and flotation. I suspect the difficulty of operating with the limbers may also have been part of the reason. Limbers were a throwback to the horsedrawn era, and not overly suited to mechanized transport.