CNP-1 Professional Slide Rule for Pilot Training and Ground School Use

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

CNP-2 Transparent Navigation Slide Rule for Flight Schools and Ground Training

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

Navigation Slide Rule CNP-1 for Flight Planning and Course Calculation

CNP-2 Transparent Navigation Slide Rule for Flight Schools and Ground Training