"Prepared for Headquarters AAF, Office of Assistant Chief of Air Staff Training by Headquarters AAF, Office of Flying Safety" -- Title page.
Dated March 1945.
AAF manual no. 50-17.
Copy 1 reprinted by George A. Petersen, NCHS Inc.
Includes…
Revised 1 May, 1945.
AAF Manual No. 50-12.
"Published for Headquarters, AAF, Office of Assistant Chief of Air Staff, Training by Headquarters, AAF, Office of Flying Safety" according to title page.