The Nautical Slide Rule is sometimes referred to as a Time Speed Distance Calculator.

It allows the user to compute distance in yards if the speed is factored in knots.

Features:

• Immediate solution to all speed-time-distance problems
• Equally applicable for nautical or statute miles
• Speed in knots or mph time in hours, minutes or seconds distance in nautical or statute miles, or yards if speed is in knots

Specifications:

• Length: 7.25 in (18.42 cm)
• Width: 7.25 in (18.42 cm)
• Height: 0.09 in (0.23 cm)
• Weight: 0.3 lb (0.23 cm)

Item# 105.