F3D-1 Skyknight Fighter Cruise Control / Climb-Descent Computer 1950s C-121 Mint condition gauge

Mint condition gauge

becoming the F-86L Sabre Interceptor aircraft of the US Air Force

terrain as viewed through the drift sight should be traveling parallel with the direction of the aircraft if there are no crosswinds

as used by navigators in aircraft of the US Army Air Force and US Navy during and after WWII

A lever responds to the differential pressure applied to the device

F3D-1 Skyknight Fighter Cruise Control / Climb-Descent Computer 1950s C-121 Mint condition gaugeThis is a Korean War era Flight Computer designed specifically for the US Navy's jet fighter, the Douglas F3D 1 Skyknight. It is specifically a Climb Decent Tabulator and is essentially a 2 disc, 7 inch circular slide rule.