> TL;DW, fitting sails (or other wind power) is paid for by the ship's owner, but the benefits go to the ship's charterer. Okay? But if I could charter two dif

> TL;DW, fitting sails (or other wind power) is paid for by the ship's owner, but the benefits go to the ship's charterer. Okay? But if I could charter two different ships and one would cost X$ and the other X+10$ (due to extra gas usage) wouldn't I charter the ship with sails?