Minor question. It appears that an automobile engine would suffice for power for early tanks. Is there a weight where this would not be beneficial? I think the U.S. went for an airplane radial engine in the Lee? Pluses and minuses of this? Also had a question on suspensions. What would work well for these early tanks? Was the U.S. the only one who used the volute system? When did welding begin to replace rivets?
Thank you from an ex-sailor.