Oil Quantity Indicator, 4 Tank, EA-48-16, B-29 Superfortress A4 Skyhawk Oxygen Pressure

Oxygen Pressure

the manual describes the instrument's use

Navy’s contractual requirements

was used in a variety of aircraft during early WWII with a maximum performance ceiling below 20

Oil Quantity Indicator, 4 Tank, EA-48-16, B-29 Superfortress A4 Skyhawk Oxygen PressureThis is an authentic WWII era quad tank Oil Quantity Indicator made by Liquidometer, PN EA 48 16, as used in the US Army Air Force's Boeing B 29 Superfortress (see illustrations of B 29 Flight Engineer's instrument panel showing instrument location). Each of the four engines in a B 29 had an 80 gallon oil tank in the nacelle with a 5 gallon expansion space. The knob situated below the display on the indicator rotates to the oil tank display 1 thru 4,