How to guess speed of a ship?

[Trevally.]

Originally Posted by GertFroebe_neu

Also very interesting! I guess it does this only applies when the ship ist moving exactly in front of my periscope, passing by. So I got to get ahead of the ship again to attack it, right?

cheers
Marc

PS.: The AOBF can not be moved. Same Problem with the Attack disc!

This just uses the time it takes for a ship to move its own length - so heading is ok - apart from close to a zero AOB or 180 AOB.

The middle ring of the RAOB can be moved by click and drag.