Topografische kaart Aptos
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Naam: Topografische kaart Aptos, hoogte, reliëf.
Gemiddelde hoogte: 114 m
Minimale hoogte: 0 m
Maximale hoogte: 346 m
On March 16–20, 1905, the Leonard Ranch near La Selva was the site of experiments with a new tandem-wing glider designed and built by John J. Montgomery. Hoisted aloft by hot-air balloon to considerable heights, over a series of test flights pilot Daniel J. Maloney was able to demonstrate the control and flight of the Montgomery glider design. These flights, with starting altitudes over 3,000 feet above the ground, were the first high-altitude flights in the world.[10] A marker was placed at this location in 2005 honoring the centennial of these accomplishments.[11]