V: Air. Part 2:

Format: 16mm

Description: Averaging Device, Adjustments, and Practical Use U.S. Department of the Navy, 19 How to use instrument with averaging device; necessary checks and adjustments; practical use for sun and star observations. (MN 83ac; 15 minutes)

Complete Record: Series: Navigation Series Type: Motion Picture

Metadata Source:3434 U.S. Government Films