This is all messed up, because it dose say it has 3 engines, but at the back the wake trail only come from 2 and 2 only.But as i mentioned in the post above also 1 button controls 1 engine and the other controls apparently 2 other.... the only solution is to release an update to remove on the HUD when it says engine 3 or make another button which will represent the 3rd engine and maybe modify the way the wake trail comes out the back just keep everything else the same in this case.
Nowhere does it say there are three engines. There is an indicator on the HUD for a third engine, which you should ignore. Because there are only two screws, there will be only two screw wakes visible. The wake on the port side is from the screw on the port side. The wake on the starboard side is from the screw on the starboard side.
There are only two throttles: The one on the left controls the port screw, which generates the wake on the port side.
The throttle on the right controls the starboard screw, which generates the wake on the starboard side.
Please let me know if you cannot understand any of the above, and I will try to explain it more simply.
We try to accommodate those with special needs.
As for VSTEP issuing a patch to clear up your confusion, you would need a far better grasp of what is involved in order to understand what a silly idea that is.
The picture that I included in my post to Cob, above, is from the Ship Editor and shows the stern of JJ. The two larger orange circles are the twin screws with the twin rudders. The smaller circle marks the location of the AZ farther forward.