aerostats
Tethered Aerostats in Emergency Response: Operational Cases
Key takeaways TL;DR. Tethered aerostats have a proven emergency-response record in three roles: communications restoration, wide-area environmental monitoring, and persistent search-and-rescue. After Hurricane Katrina, a TCOM 17M at 305 m restored a 1,550 km² cellular umbrella for 2,000 subscribers, deployable in 3 hours.