Unless I'm being daft there does not seem to be a naval transport for the industrial era. Relying on Caravels when you've got a trans-continental empire is not ideal. Should we have some sort of steam ship when you unlock propellers?

I have talked about this before that I think there should be like a clipper or steamer transport in industrial era, maybe like move 4 (and make the contemporary transport move 5 to make late game tranports a bit faster as they are slow now, especially compared to teleporting airports).

I agree. Also, naval transport is hella slow.