Fuel Quantity Indicator, 5400 lbs, Minneapolis-Honeywell JG7020A13 P-51 A few pages have a

A few pages have a pencil marking crossing out the section and some yellow highlights

followed by discussions between Kearfott engineers and members of the USAF/RCAF LF Loran Flight Test Unit involved in polar flying out of Edmonton

for aircraft of the US Navy

but perhaps not surprising for an artifact of its age

Fuel Quantity Indicator, 5400 lbs, Minneapolis-Honeywell JG7020A13 P-51 A few pages have aHere is a capacitance type Fuel Quantity Indicator displaying aircraft fuel quantity up to 5400 lbs. It has a date of manufacture stamped June 1952. It is in exceptional condition for its age, and was likely used on a US Air Force or US Navy aircraft during the 1950's.