tahzib1451

i keep my research investment at 100% and haven't used priorities...

hi, I am new to the game and the forums, so I don't know if this was asked before or not...I am playing a Japanese 1890 campaign, and currently I am in september of 1911 - but my ships are still running on coal...when do i move to oil? are the tech progression random? I checked via jsoneditor that the engine is researching turbo-electric drive which is 1919 tech...