P-38L Lightning Erection and Maintenance Manual AN 01-75FF-2 1945 F-100 "This unit is equipped with

"This unit is equipped with a vacuum-driven gyroscope with its operating range limited to 55 degrees climb

but is similar to that used in the AH-1 Bell Cobra Attack Helicopter of the US Army

This is an original WWII-era manual

This is an Altimeter used in military aircraft of the Aviation Section

The compass is affixed to a mounting bracket

P-38L Lightning Erection and Maintenance Manual AN 01-75FF-2 1945 F-100 "This unit is equipped withHere is an authentic, original WWII era Erection and Maintenance Instruction Manual for the USAAF Lockheed P 38L Lightning Fighter. 565 Pages. It is not for sale, but inquiries regarding its contents are welcome via email. P 38 restoration projects are invited to inquire.