Middleton Air Depot
Installation and Maintenance of Aircraft Instruments, Oct 1941
This is a pre-WWII instructional manual Installation and Maintenance of Aircraft Instruments published by the Middleton (PA) Air Depot in October 1941. Middleton Air Depot was a major support center for aircraft of the US Army Air Corps.
This 30-page manual reviews the basics of installation and maintenance of the most common instruments in use at the time. It also includes diagrams of instrument panels of specific aircraft showing the location of these instruments, such as the P-38 and P-40 fighters.