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发帖数: 395 | 1 http://www.lockheedmartin.com/products/HighAltitudeAirship/index.html
High Altitude Airship
HAA
The Lockheed Martin High Altitude Airship (HAATM), an unmanned lighter-than-
air vehicle, will operate above the jet stream in a quasi-geostationary
position to deliver persistent station keeping as a surveillance platform,
telecommunications relay, or a weather observer.
High Altitude Airship
This updated concept of a proven technology takes lighter-than-air vehicles
into a realm that gives users ca |
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