I've made a stab at an impression of the proposed St Chamond rhomboid tank based on the original outline drawing. Note the asymetric sponsons. Would make an interesting model, however warning the curve of the rhomboid is subtly different from the British Marks I to V so you can't just take an existing kit and add new sponsons etc.
Looks very top heavy and front heavy, but the additional 6 pounder(?) each side may have offset that. Is that a MG turret just behind the cab and another at the rear of the tank?
The thing on top of the hull you think may be another MG is, I suspect, an exhaust, given the location of the engine (again, look at the linked drawings, especially the plan view). Dunno what the thing at the rear is, though.
The four guns in sponsons are all machine guns - there was to have been a 75mm gun in the bow, between the horns. See the drawings at the very bottom of this page: http://www.chars-francais.net/archives/saint-chamond.htm The thing on top of the hull you think may be another MG is, I suspect, an exhaust, given the location of the engine (again, look at the linked drawings, especially the plan view). Dunno what the thing at the rear is, though. Nice drawings, by the way, Centurion.-- Edited by Roger Todd at 22:18, 2006-02-27
Thanks for that, I didn't know it was supposed to have been MG armed and carry the normal 75mm. I think though that the rear object is the exhaust; it seems to be located more above it. The forward oval-shaped turret object sits a little too far away. I've combined the images to show what I mean.
P.S.: BTW, the comment about the top and front heaviness was not a criticism of the drawing but of the design itself. The Germans had a similar problem with their attempt on the rhomboid A7V.
You're right, it does look top-heavy, I've always thought that. Still, big improvement on the original St Chamond...
I've had a go combining both views too; oddly the plan view was a bit smaller so I've had to muck about with scaling, but I think I've got it pretty close. Still can't make out the wording of the things either side near the rear, behind the electric motors, in the plan view - shame, it might help solve what that odd box thing is...
Albert Stern had a Mk.II sent to the St. Chamond factory to be fitted with a petrol-electric transmission prior to the Oldbury trials of March 1917. In the event, the tank was not ready in time and did not participate in the trial. Perhaps it remained at the factory, as the progenitor of this machine?
Albert Stern had a Mk.II sent to the St. Chamond factory to be fitted with a petrol-electric transmission prior to the Oldbury trials of March 1917. In the event, the tank was not ready in time and did not participate in the trial. Perhaps it remained at the factory, as the progenitor of this machine?
I tried laying a drawing of a Mk I over the original St Chamond and as I said earlier the curves do not match. I would suspect that the Mk II above was not the progenerator of this drawing. Its possible that when St Etienne attended one of the early demos of 'Mother' he took back a sketch and matters progressed from there.
The "machine gun" turret on the top of the hull is in fact far too small to house a gun much less a gunner and exhaust is probably the correct interpretation.
I think that the commander's tower would have been a relatively small part of the overall mass and therefore might not have had too bad a c of g effect. It would however have made it more difficult to conceal the tank in its approach.
The tank is l'homme because of the 75mm in the front hull (rather akin to the mountings in the Churchill Mk 1 and the Char B of WW2). The "6 pounders" in the sponsons are, as someone has correctly identified Hotchkiss mgs with a an arrmoured tube over the barrel. (note there is no taper as one would expect on the barrel of an artillery piece).
BTW whilst on the general subject of St Chamond does any one know how the rear wheels were driven on the St Chamond M 1921 wheel/tracked tank?