Compass, Remote Indicating AN-5730-2A PB-1 EPR indicators were used in

EPR indicators were used in jet engine aircraft

in the worst case

This is an original soft-cover WWII-era Instrument Flying Manual

such as the P-38 Lightning

Compass, Remote Indicating AN-5730-2A PB-1 EPR indicators were used inHere is a fine example of a WWII era Remote Indicating Compass AN 5730 2A as appeared in the cockpits of many aircraft of the US Army Air Force and US Navy, such as bombers B 17, B 24, B 29, B 25, and fighters P 38 and P 51, according to the US Army Air Force's Interchangeability Guide dated Feb 1945. The indicator has a serial number prefix of "43" evidence of a year of manufacture of 1943. See spec sheet in the photo gallery. It was also used in the