CRP-1 Flight Computer
The CRP-1 is designed particularly for the student and private pilot. Easy to handle, it includes all the necessary functions for examination, planning and flying requirements. This model is widely used by flying training organisations in the United Kingdom and throughout the world.
Circular slide rule side... 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 etc. Coloured scales and lettering enhance operation and clarity.
Wind triangle side... incorporating sliding scale with speed range of 40-850 and clear rotating disc for lead pencil plotting. Used for calculation of heading and groundspeed, wind velocity, head and crosswind components etc.
The CRP-1W (normally used outside the UK) has a wind arm on the wind triangle side to prevent the necessity of plotting with a pencil.
The use of the CRP-1 is detailed in Air Pilot Manual, Volume 3 - see link below