F-86E/Sabre 2 Fighter Range and Climb Computer RCAF Ref 6B/541 1950s

This is a Korean War-era Flight Computer designed specifically for the RCAF's North American F-86E / Sabre 2 jet fighter.  It includes a Range Computer on one side and a Climb Computer on the opposite side.... this is essentially a 2-disc, 4.5 inch circular slide rule.