Depends on the speed at which it travels of course. It has a fuel engine with turbo's so it will not have the best efficiency. Rather it is designed for reasonable power production in a small space.

At max speed (24 m/s) it uses 1.29 mat/sec. Which comes down to 18.6m per material.

I define economy cruise usually at 70% power but since every change resets it, it probably isn't set in the uploaded vessel.

At cruise speed (20 m/s) the ship uses 1 mat/sec.

A CJE generator will have a better efficiency, but at a much higher initial cost (and repair cost).

Hope that helps.

How Fuel efficient is it?

Thanks a lot raybeak! Really pleased that you like them :) There's 2 to 3 left in the pipeline still, after that the corvettes will start making an appearance!

I love your little boats 10/10