Sur le Thales Strato Balloon
https://www.thalesgroup.com/en/worldwide/space/case-study/stratobus-halfway-between-drone-and-satellite
[youtube https://www.youtube.com/watch?v=_cAkoaK3feQ&w=560&h=315]
Un ballon aussi chez Lockheed Martin
http://www.lockheedmartin.com/us/products/lighter-than-air-vehicles/haa.html
[youtube https://www.youtube.com/watch?v=Qu7HOTYurqM&w=560&h=315]
Sur le Airbus Air Defense Zephyr 7 et 8
http://www.uasvision.com/2014/04/24/airbus-defence-and-space-launches-high-altitude-pseudo-satellite-zephyr-8-programme/
http://www.economist.com/news/science-and-technology/21614095-cheap-alternative-satellites-starting-take-west-wind-blows
Autres billets sur des drones persistants
https://lf5422.wordpress.com/?s=Titan+drone