SOUND TRUCK HELPS LAND AIRSHIP (Sep, 1933)

SOUND TRUCK HELPS LAND AIRSHIP
When the Navy’s new airship Macon takes off or lands at the Akron Municipal Airport, Ohio, activities of the ground crew are directed by means of a sound truck that amplifies the voice of the mooring officer so it is audible to every man on the handling lines. This system was particularly valuable during early practice flights, when a slight hitch in carrying out commands might have proved disastrous.

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  1. [...] SOUND TRUCK HELPS LAND AIRSHIP (Sept. 1933) [...]

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