If you have ever been in the US Navy or US Coast Guard then you have seen this navigation tool before. The Nautical Slide Rule offers immediate solutions for all time-speed-distance problems. It also offers the following:
Equally appliable for nautical or statue miles.
Speed in knots or m.p.h.,time in hours, minutes or seconds and distance in nautical or statue miles (or yards if desired, and if speed is in knots).
