The first Odessey Protractor. This instrument was used to plot intersecting ranges from two RAR stations. Invented while Herman Odessey attached to DISCOVERER. Variations of this instrument were used for plotting positions for over 60 years
Photo Category: Charting - Navigation - Electronic - Radio-Acoustic Ranging
Photo Date: 1929
| Added On | 18th October 2015 |
| Viewed | 6 viewed |