AEC 850
Thanks for the comments, I am taking the liberty to post a few shots of the build.
The tyres were from the Bedford QL kit, I prefer the tread pattern, but they are a little wide.
They should be the 9 x 22, the kit ones are 10.50 x20.
The underside was the most complicated, the articulating rear axle had a very large movement. Rear axles were ball jointed at their ends, this allowed the wheels to remain upright, but involved a series of tie bars. The brakes were self compensating to allow for the movement oif the axles.
The front axle was beam mounted and again had a large travel, the front end of the springs were mounted on upright beams.
All in all one of thje most complicated arrangements I have ever encountered, and, a real challenge.
The engine appears to be mounted on a seperate sub chassis as well.
Unfortunately, whilst at Duxford, although having permission from the curator to get close up, and get details, one of the "security" chaps went ape when I was seen crawling on my back underneath to get some detailed photos. Despite my insistence that I had permission, I was then "under observation" for the rest of my visit.
I have my preliminary drawings and one day, hope to produce a set of drawings, presently there are 13 pages of sketch drawings that need to be translated into a proper format.
The example at Duxford is privately owned, and was the one seen at military vehicle rallies in the 80's, however, it's not going anywhere for a while, as the cylinder block is cracked.
I do hope that some other firm information surfaces re the remaining chassis, as I would like to clarify certain points about the chassis layout.
Again I can only thank Les Freathy for his invaluable help. it would seem he has an inexhaustable supply of rare photo's.
I have a number of other projects lined up, and have details of the Morris CDSW artillery tractor, (thanks Hanno), plus details of the No 24 limber and the split trail 18/25 pounder.
I have found this site of immense value, as a model maker, it is essential to get views and details not normally found on "stock" photo's, and seeing vehicles in their component form is of great help.
Thanks.
George.
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