221-b; 42 frames, synchronized disc, 11 minutes) 3 41 1 Driftmeters U.S. Department of the Air Force [1943?]. (Aerial Navigation Series. Dead Reckoning Instruments No. 1) Nature of drift and its effect on aircraft; construction of driftmeters and how they function. (FS 1-324; 56 frames) The Drill Press U.S. Office of Education
Looking up 221-b; 42 frames, synchronized disc, 11 minutes) 3 41 1 Driftmeters U.S. Department of the Air Force [1943?]. (Aerial Navigation Series. Dead Reckoning Instruments No. 1) Nature of drift and its effect on aircraft; construction of driftmeters and how they function. (FS 1-324; 56 frames) The Drill Press U.S. Office of Education on Wikipedia…
Filmography in the catalog
Credited on 1 film (1945) — matched by name in the Creator or Credits field.