Torque Pressure / BMEP Indicators, Dual Engines 1&2, 3&4, C-121 Lockheed Constellation Air Forces of USA The part number has been

The part number has been confirmed in the B-17F Erection and Maintenance Manual dated 1942 and the G model dated 1944

automatically firing all rocket pairs in 10 second intervals

Once switched On

The glass and face markings are intact

The center knob adjusts the rate of change pointer

Torque Pressure / BMEP Indicators, Dual Engines 1&2, 3&4, C-121 Lockheed Constellation Air Forces of USA The part number has beenThis is a matched set of dual engine Torque Pressure BMEP Indicators, one marked for engines 1 & 2, the other marked for engines 3 & 4, as used in the US Air Force C 121 transport version of the Lockheed Constellation. See photo of the location of the instruments on the Flight Engineers lower instrument panel from the C 121 flight manual dated 1958. One has a service date of 1973 stamped on its side. Both are in nice condition. The glass on the