Communications between aircraft and the ground can be accomplished optical signaling, electronic telegraph, or other means.
- Allaz, 1998, pp. 12–13, etc.
- Horgan, 1965, pp. 124–125:
While activity among the airships lagged, another aeronautic 'first' was recorded at the Exposition. On November 11, three men ascended in a balloon and performed the first successful demonstration of wireless telegraphy between the ground and air in the United States. They were: Paul Knabenshue, the younger brother of the pilot of the California Arrow, A. W. McQueen, a wireless operator for the American De Forest Wireless Telegraph Company, and Will S. Forman, a reported for the St. Louis Globe-Democrat. They left the Exposition grounds at 3:15 P. M. in a thirty-foot balloon of 6,000-cubic-foot gas capacity. For an hour and a half, at heights varying from 1400 feet to two miles, they received twenty messages from the station at the Fair ground, the first of which read:
W. S. Forman, Balloon: I congratilate the Globe-Democrat on having a reporter present to see the first wireless message every received in a balloon. (Signed) L. Z. Harrison, Manager De Forest Company.
|Enclosing categories||Simple tech terms|
|Subcategories||air mail, Radio|