(12.Apr.2010 edit)
I can get rid of the "Beta" description!
* Known Issue
- Grab Position of MiddleSlideRule
<--- SOLVED ![Grin](images/smilies/icon_biggrin.gif)
- Grab Position of SlideRuleCursor
<--- SOLVED
- This SlideRule's scale is not precision.
* Note
I don't know whether was or was not ARISTO's SlideRule used by U-Boat submariner, historically.
Besides, I could find only one picture of SlideRule on the net, Marineschule's No: 20 'Kiel' model.
http://www.atlantik-pirat.com/Gallery1.htm
* Special thanks
http://www.atlantik-pirat.com/
http://www.sliderulemuseum.com/
http://www.oughtred.org/