tetsu-katana said:Plus, it wouldn't be too hard to speed up the invention of the internal combustion engine, which, if I remember correctly, was invented in 1885, only twenty years after the ACW's end. If we could get an efficient gas powered engine during the Crimean War, tanks by the ACW gets a bit more plausible.
Mikey said:Again, IIRC, the first internal-combustion engine ran in 1861.
wkwillis said:Steam engines are less efficient but much lighter if you don't include a radiator. You can build a steam engine without a transmission because you can bleed in steam to get lots of torque at low speeds and then ramp up to a more efficient RPM.
The problem with tanks is that they would have been sitting ducks for the huge numbers of cannon that were typical of civil war battles. Tanks were designed to knock out machine gun nests. The civil war with lots of Spencer breechloaders would have necessitated tanks.
Say, the Republicans don't elect a president until 1872? The Colt factories are bigger and have more financial backing? People have spent longer thinking about a civil war? Even twelve years would have dramatically increased America's industrial base.
We were growing very rapidly back then. The French would just have been through the Franco-Prussian war and they would have had lots of surplus breechloaders. The British would not have been so provocative without the prospect of Napoleon III to back them. Especially with the Germans as a prospective threat.