Propulsion problems: help???

[Captain Kwok]

With such a wide range in ship sizes you'd be best to consider a mounted engine system - such as the one used in the Star Trek Mod. Decide on how many engines you want on the biggest ship and make engine components based on that decision, then use scale mounts to size down as necessary for the smaller ships.

A propulsion system like that used in my Space Food Empires mod would not be appropriate.

[NullAshton]

You could have 5kt engines that provide 1 movement point for a ship like an escort. That would fit on the tiny ships. However, it'll have a high speed.