Nav tools mod question. Nm vs km

[Von Due]

Thanks, makman94.

Perhaps I failed to make it sufficiently clear but the idea is to avoid all calculations and instead rely solely on the plotting tools where the plot will reveal not just distance and heading, but also estimated time enroute. Draw the line, know own speed and and read the time directly off the plot. With say a marked ruler with Nm marked as well as 1/60th or 1/3600th of a nautical mile, one could also instantaneously figure out run distance over time for torpedos at various speed settings, again without using any form of calculation.

[makman94]

Originally Posted by Von Due

Thanks, makman94.

Perhaps I failed to make it sufficiently clear but the idea is to avoid all calculations and instead rely solely on the plotting tools where the plot will reveal not just distance and heading, but also estimated time enroute. Draw the line, know own speed and and read the time directly off the plot. With say a marked ruler with Nm marked as well as 1/60th or 1/3600th of a nautical mile, one could also instantaneously figure out run distance over time for torpedos at various speed settings, again without using any form of calculation.

but you don't have to make any calculations.
once you have found the intercept point, you can measure the distance with your ruler (in kms. ruler is measuring kms) and then you can use the rings for calculating the time you need to get there (or the torpedoes)