Highjohn wrote:
Further where tanks and armored cars really excel is in massed deployment. Ten tanks(or some other small number since it would be impossible to manufacture to many) even if they were deployed together would simply make a good target for the Temple artillery. Which would have little trouble penetrating them as any land tank simply could carry enough armor at this point stop solid shot. I would also like to point out that outside of a pitched battle tanks would be worse than useless as they couldn't contribute much to skirmishes or scouting and would be particularly vulnerable in such positions and would be loud easy to spot targets.
The advantage of speed should not be ignored. If you have a vehicle that can move faster than the sustained speed of a horse (round 10 mph) then you can get behind the oppositions defensive lines, and overrun the artillery before it can reload or escape.
The advantage of an armored landing craft is that your troops don't drown with the first hit on their timber oar driven long boats, and it doesn't take much armor (particularly if it is decently angled) to stop a low velocity round shot from a small field gun. (A high velocity spin stabilized cylindrical round, driven by smokeless powder - that's an entirely different animal, much higher sectional density, much higher velocity , and an explosive filling as an option, just what you want a tank firing back.)
Standardized engines would be a big boon to industry. If you can thump out a couple of dozen a day, prices drop rapidly and if you build modular so you have a family of engines where you add cylinders to step up the power, ditto for the boilers.