to 30 meters. In 1906, in the presence of King Alfonso XIII of Spain and a large audience, Torres successfully demonstrated the invention in the Port of Bilbao. From the shore, he guided the electric launch Vizcaya--which had passengers on board--at a distance of over two kilometers.

In 1904, Bat, a Windermere steam launch, was controlled using experimental radio control by its inventor, [Jack Kitchen]. In 1909 French inventor