Category:Sound locators

This category refers to passive acoustic detectors which were used as a military air defense technique between World War 1 and 2 to detect approaching enemy aircraft by listening for the sound of their engines. The development of radar in World War 2 rendered this technology obsolete.

Subcategories

This category has the following 3 subcategories, out of 3 total.

Media in category "Sound locators"

The following 58 files are in this category, out of 58 total.