CNP-2 Electronic Scale Slide Rule for Pilot Training and Paper Chart Navigation

CNP-1 Multi Function Slide Rule for Distance Angle and Scale Conversion

CNP-2 Electronic Scale Slide Rule for Pilot Training and Paper Chart Navigation

CNP-3 Professional Grade Slide Rule for Pilot Training and Chart Interpretation

CNP-3 Plastic Slide Rule for Flight Navigation Scale Conversion and Plotting

Flight Training Slide Rule CNP-2 for Chart Measurement Angle and Distance Calc

CNP-2 Slide Rule for Aeronautical Chart Use Featuring Angle Distance Conversion

Plastic CNP-3 Slide Rule for Aeronautical Navigation and Scale Measurement