The Mk1 tanks were a miracle of design considering the speed with which they went from drawing board to battle field, unfortunately using the same track wheels front and back did reduce the number of different parts but at the cost of extra wear & tear to the track.
The Gaza Tanks were a mix of unaltered MK1's and those with alterations similar to the MKIV's. Off the top of my head I am not sure what front track wheels 'we are all in it' was fitted with.
Hi Helen Thanks for your quick answer For sure if you have any information somewhere to help me on this ....That will be a great help I learned a lot on the MK I from your posts Best Regards Olivier
As the tracks gradually stretched with use, they had difficulty engaging properly with the toothed idler wheels used on the MkI tanks. To remedy this problem, smooth idler wheels were introduced on the MkII tanks, which appeared early in 1917. I suspect that HMLS "We're All In It" (A13, 544) still had a toothed idler when it was pictured ditched near St. Pierre Divion on Nov. 13, 1916, although existing photos do not show this detail. Another tank from that company, HMLS "Oh I Say" (A17, probably 531) was still equipped with a toothed idler when it was knocked out in the Arras battle of April 1917.
In contrast, the MkI tanks at Gaza were photographed with smooth idlers in April 1917. I believe that these replacement idlers were manufactured in Egypt.
Thanks Rhomboid Your ( And Helen's ) explanations are going on the direction of toothed teeth for " we are all in it " . I will make my model with. Best Regards Olivier