[Gray Lensman]

Originally Posted by derstosstrupp

It’s there. Please watch the lead angle ones carefully. It’s simply a matter of aligning the correct torpedo speed on the speed ring. The examples I put in the tutorials are just that - examples. They don’t mean that the numbers in them are all you can use. A slide rule is a calculator. Just as you can punch whatever numbers you want into a pocket calculator, so can you align whatever numbers you want on a slide rule.

Be advised though - the distance scale is calibrated to meters. All that means to go to imperial though is one extra step, not a big deal. That has no impact however on lead angle calculations.

Thanks... This makes my spreadsheet effort ridiculously obsolete especially since the onscreen measuring tools are subject to pixelated interpolation errors.