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This is an acoustic horn used by the Germans to listen for aircraft approaching. By maximizing the sound, direction and elevation could be measured. |
Copyright © 1998-2024, 486th Bomb Group Association. |
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This is an acoustic horn used by the Germans to listen for aircraft approaching. By maximizing the sound, direction and elevation could be measured. |
Copyright © 1998-2024, 486th Bomb Group Association. |
|