OK folks, another update to this file - I have added a tab for Ausdampfverfahren (method of calcing speed by achieving a constant bearing to target, then deriving target speed from own speed, that bearing, and AOB). I've been playing around with this method in WP while overtaking targets, and it works very well.
The long and short - While overtaking, pick a ship and a feature on that ship and adjust speed (use the 10 slower function on the EOT too!) so the bearing moves only a little, then fine-tune with course adjustments until the bearing line in the UZO stays on that spot on the ship over at least a couple minutes. Then, without moving the UZO:
1. Note the exact bearing per the TDC to the 10th of a degree.
2. Note exact own speed to the 10th of a knot.
3. Estimate the ship's AOB.
Input these values into the "Ausdampfen" tab and it will calc the target's speed.
Obviously the initial AOB estimate will likely be inaccurate - as the approach unfolds, you will be able to refine his course and thus will be able to "go back" and adjust the initial AOB (and thus the speed estimate) accordingly.
Please let me know if that doesn't make sense!
