Aircraft Instrument Course 1939: The Air Corps Technical School M-41-4 Sally Bomber The manual is in very

The manual is in very good condition despite some discoloration on the cover and some minor deterioration on the upper corner of the last 4 pages

It was also used in versions of US Army Air Corps WWII fighters P-38

Then the gunner may greet the uninvited guest with 50 cal potpourri

or film spools

It has a detector unit

Aircraft Instrument Course 1939: The Air Corps Technical School M-41-4 Sally Bomber The manual is in veryDated September 1, 1939, this pre WWII instructional manual is for the Aircraft Instruments course of The Department of Mechanics in The Air Corps Technical School, M 41 1. Consisting of 258 pages and dozens of illustrations and diagrams, this compendium describes the purposes, uses, descriptions, operations, installation, service, inspection, and maintenance of more than 30 instrument types. The manual covers instruments that were eventually used in