Manifold Pressure, Dual, Set for 4-Engine Aircraft, AN5770-2, D-11 Vickers This is a fine example

This is a fine example of the electrical Fl

Normal 0 false false false MicrosoftInternetExplorer4 This is an authentic WWII-era quad-tank Oil Quantity Indicator made by Liquidometer

The knob turns the compass card when depressed

The formation stick was used to quickly maneuver the aircraft with minimum physical effort while the C-1 Autopilot was on and the aircraft was assuming

Manifold Pressure, Dual, Set for 4-Engine Aircraft, AN5770-2, D-11 Vickers This is a fine exampleHere is a set of WWII era AN5770 2 (formerly D 11) Dual Manifold Pressure Indicators, as used in four engine of the US Army Air Force such as bombers B 17, B 24, and B 29 and transport C 54. The indicator marked for engines 1 & 2 was made by Ranco with a 1943 manufacturing serial number prefix. The indicator marked for engines 3 & 4 was made by American Meter with a 1944 manufacturing serial number prefix. These were also used in twin engine aircraft