[joegrundman]

In the early version of the templates for that tool there was a silght error in the location of the two ship images labelled Vorh. Heck and Vorh. Bug, as the tool wasn't yet fully understood by us at subsim. Later Hitman managed to obtain the actual KM manual for the tool, and since then has shared how to use it with any who ask.These two features are intended to interact with the Vorhalt arm, that is the funny shaped wheel. The locations of the two boat images should be such that the short tails on each boat will neatly indicate a position on the Vorhalt wheel.Once you have an intercept course, and have gathered your necesssary data, you use slide rules to calculate the necessary lead angle (vorhalt) to hit the target. You then set the vorhalt arm to show the AOB of the target at the moment of firing. You then set the bearing indicator to show the correct lead angle on the vorhalt arm, taking into account whether it is a Bow (Bug) or Stern (Heck) shot, and read off the opposite side of the arm the course that you should follow to be able to shoot the target with a 000 gyro angle. Alternatively the difference between your course at the moment of firing and the indicated lead angle course is the gyro angle you should use