Master Direction Indicator, Autopilot, Type N-5, US Air Force 1951 CF-100 and produced for a US

and produced for a US Air Force application per its MIL spec

The right hand gauge measured system pressure and indicated the quantity of oxygen remaining in the system

5 inches diameter by ~4

but requires the correct electrical input to function properly

Here is an Omni-Bearing Selector 336A-2 as used in the 1950's era Collins Radio Navigation System VOR-102

Master Direction Indicator, Autopilot, Type N-5, US Air Force 1951 CF-100 and produced for a USThis is a Master Direction Indicator for the Bendix autopilot system, Type N 5, Bendix part number 16404 1C A1, with a serial number prefix of AF 51, indicative of a manufacturing year of 1951 for an order by the US Air Force. We have yet to link it to a specific aircraft of the USAF. This indicator has 3 calibration screws along each outside edge of the dial, as well as a calibration window on its top side. It is in exceptional condition given its