Time In The Air.

How to determine error of aircraft navigational watch; use in celestial navigation; make observations of sun preparatory to solving astronomical triangle
Complete catalog record
TIME IN THE AIR. Springer Pictures, Inc., for the United States Navy. sd., 35mm. Appl. author: John Howard Obold. © Springer Pictures, Inc.; title, descr., & 4 prints, 18Aug43; MU13862.

Sources

  1. 16mm Filmography (legacy record) — title, year, format, sound, catalog record
  2. 3434 U.S. Government Films — title, year, creator, length, format, description, catalog record