39.67
Description
The CRP-9 is a circular computer of 140mm diameter Circular Slide Rule side is that of the CRP-5.
With clear durable cursor for calculation and conversion of Temperature, Time, Distance, Volume, Altitude and Density Altitude, Speed, Weight, Fuel, Endurance, Multiplication and Division, 1 in 60 rule, Compressibility Correction etc.
Coloured scales and lettering enhance operation and clarity.
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