Tethered airships
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United States of America Patent
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Oct 21, 2014
Issued Date -
N/A
app pub date -
Jun 13, 2011
filing date -
Jun 13, 2011
priority date (Note) -
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Abstract
In one example, a tethered airship system for high altitude long endurance missions includes a first airship configured to be equilibrially buoyant in a first altitude range and a second airship configured to be equilibrially buoyant in a second altitude range, such that the first airship is at least five kilometers above the second airship. The first airship and second airship are connected by a tether.
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