Welcome to Defender Canada! 
Description
The Weems & Plath Nautical Slide Rule 105 is a classic Time Speed Distance Calculator that delivers quick, accurate solutions to all speed, time, and distance problems. Designed for mariners, it handles knots, MPH, nautical and statute miles, and even yards with ease. Trusted by the U.S. Navy, it's a reliable navigation tool built to last.
Weems & Plath Nautical Slide Rule - 105 Item # 887589
Description
Sometimes referred to as a Time Speed Distance Calculator, the Weems & Plath Nautical Slide Rule gives an immediate solution to all speed-time-distance problems. It even allows the user to compute distance in yards if the speed is factored in knots.
Features:
- Gives an immediate solution to all speed-time-distance problems
- Computes distance in yards if the speed is factored in knots
- Sometimes referred to as a Time Speed Distance Calculator
- Speed in knots or MPH, time in hours, minutes, or seconds, and distance in nautical or statute miles (or yards if desired, and if speed is in knots)
- Easy to read and accurate
- Standard in U.S. Navy
- Dimensions: 7 3/8" square
- Lifetime warranty