Autonomous
Aerostats
The World’s Only Tethered Aerostats
Capable of Fully Autonomous Flight
High capacity, long-endurance tethered aerial platforms. Flexibility to lift any payload, anywhere.
Altaeros builds Autonomous Aerostats in a range of sizes, with fixed or mobile bases, to fit your business needs.
Light and Portable
Trailer-based ST-Flex sets up in less than a day to lift 60kg of mission-critical payload
High Capacity
The fixed-base ST-300 lifts hundreds of kilograms for long-term deployments
Custom Solutions
Our expert team can develop custom payload solutions or aerostat platforms for your application.
Introducing: ST-Flex
Meet our fleet
ST-Flex
Portable, Flexible, Rapidly Deployable
ST-Flex is ideal for a wide array of applications. It is rapidly deployable and easily transportable to wherever your mission requires. It can be deployed in under one day. The ST-Flex lifts payloads up to 60kg (130 lbs) and features Aerostat Autopilot to maintain operations without operator intervention.
- Maximum Flight Altitude: 1000 ft AGL (305 m)
- Maximum Ground Elevation: 7000 ft MSL (2133 m)
- Service Interval: 1-3 Weeks typ.
- Operational Wind Speeds: 63 mph (100 kmh)
- Survival Wind Speeds: 93 mph (150 kmh)
- Payload Power: 1 kW (Transmitted Through Tether)
- Data Transmission: Optical fiber in tether provides a secure data link to ground
- Redundancy: Three structurally redundant tethers minimize the chance of flyaway
- Payload Mass: Up to 132 lb (60kg)
- Payload Types: Modular payload interface allows for a wide range of payloads, including LTE, 5G, EO/IR Sensors, etc.
- Operating Modes: Aerostat Autopilot, Fully Autonomous, Remote Control, Local Control
- Off-road and highway towable, set up in less than a day
Contact us to enquire about ST-Flex sale or lease options.


ST-Flex Use Cases
Mobile Networks
Industrial IoT
Emergency Response
Outdoor Event Marketing
ST-300
Maximum Performance, Maximum Reliability
Connectivity has never been more important. Yet the high cost of wireless infrastructure keeps many rural communities and businesses out of the modern digital age. A single ST-300, with up to 300 kg (660 lbs) of payload, can reliably provide LTE/5G broadband in rural markets at a fraction of the cost of regular towers.
- Maximum Flight Altitude: 2000 ft AGL (610 m)
- Maximum Ground Elevation: 7000 ft MSL (2133 m)
- Service Interval: 4-6 Weeks typ.
- Operational Wind Speeds: 63 mph (100 kmh)
- Survival Wind Speeds: 93 mph (150 kmh)
- Payload Power: 7 kW (Transmitted Through Tether)
- Data Transmission: Optical fiber in tether provides a secure data link to ground
- Redundancy: Three structurally redundant tethers minimize the chance of flyaway
- Payload Mass: Up to 660 lb (300kg)
- Payload Types: Modular payload interface allows for a wide range of payloads, including LTE, 5G, EO/IR Sensors, etc.
- Operating Modes: Aerostat Autopilot, Fully Autonomous, Remote Control, Local Control
- Permanent installation that integrates seamlessly into existing networks
Learn how Altaeros can help you tackle the digital divide.



ST-300 Use Cases
Mobile Networks
Fixed Wireless
Industrial IoT
Custom Options
Payload integration & turnkey solutions
Our team of experts will work with you on a custom payload specification that meets your exact needs. Or tell us your requirements and we’ll take it from there, with a turnkey solution leveraging the unique strengths of our SuperTower autonomous aerostat systems.
Custom aerostat development
Does your application require unique or specific features? Our world-class team of designers and manufacturers can quickly turn your requirements into a customized autonomous aerostat platform that leverages our cutting-edge robotics technology to meet your exact needs.
Aerostat Field Support & Service
Whether you lease or buy, we provide a range of services from 24/7 phone support to in-person field support, remote monitoring via Altaeros NOC or complete operational responsibility.
