Ships float too high out of the water?

[Stonehouse]

Just starting out with the mission editor and began with setting up a column of tankers moving along a path with a camera. I've noticed that the ships float with the waterline well out of the water even more than just being no cargo as I can see the prop and most of the rudder and the bow wave is above the water. I can't see a way to lower them down to a more realistic position as the Y co-ordinate seems not editable. Can anyone advise how you can get them lower in the water please?

 

[Habu]

You can't. Try decreasing speed.

[Stonehouse]

Ok thanks. Will try that.