Pilot Slide Rule 90% Light Transmittance Portable For Manual Navigation

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-2 Transparent Plastic Navigation Slide Rule for Pilot Chart Interpretation

Pilot Slide Rule Operates -40°C To 120°C Oil And Seawater Resistant Training Aid

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