Selector Switch, Zero Reader, US Air Force C-7 for taking bearings on objects

for taking bearings on objects

with two clamping screws

A very cool item to add to your collection

The Mk X regulator was for a high pressure continuous flow oxygen system and allowed the pilot to control the flow of oxygen centrally for up to 8 crewmen

Selector Switch, Zero Reader, US Air Force C-7 for taking bearings on objectsThe Zero Reader Selector Switch, made by Sperry part number 668899, was a component of the Zero Reader Flight Computer. The Zero Reader was used in a number of Cold War era aircraft of the US Air Force, such as the F 89 Scorpion and F 94 Starfire jet fighters interceptors (see photos from F 89 flight manual showing the location of this instrument). According to the F 94 Starfire Flight Manual: The Zero Reader is an automatic flight instrument that