Circular Flight Computer - CR-4



The APR CR-4 is a handy 4 1/4" diameter circular computer that easily fits in most shirt pockets. Its functions include:


1)  Calculator

2)  Slide Rule Operation

3)  Unit Conversions

4)  Time, Speed and Distance Calculations

5)  Fuel Consumption

6)  Altitude Computations

7)  Temperature Rise

8)  True Airspeed

9)  Time and Distance to Station

10)  Pressure Pattern


1)  Wind Computation

2)  Pre-Flight Planning

3)  In-Flight Planning

4)  True Course and Ground Speed

5)  True Heading and True Airspeed

6)  Off Course Correction



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