Solar-Powered Airship Breaks Records for High-Altitude Connectivity

A US aerospace company has completed a record-breaking stratospheric flight that could push high-altitude connectivity platforms closer to commercial viability. Sceye’s SE2 High-Altitude Platform System launched from New Mexico on March 25 and completed its mission in international waters off the coast of Brazil after more than 12 days aloft.

What the Flight Demonstrated

The SE2 covered more than 6,400 miles during the Endurance Program, spending over 88 hours maintaining position over selected locations along the route — with a station-seeking radius as low as 1 kilometer. The vehicle closed both its power and pressure loops during each day-night cycle, ensuring it sustained power, position, altitude, and hull integrity around the clock.

Sceye uses solar energy during daylight to charge batteries that carry the platform through nighttime operations.

Building on Prior Milestones

The Endurance Program follows Sceye’s 2024 Control Dynamics Program, in which the company’s HAPS became the first of its kind to maintain power through a complete day-night cycle while holding position over an area of operation.

The latest mission extended that capability across multiple consecutive diurnal cycles — including one full cycle over New Mexico and three consecutive cycles off the Brazilian coast. Sceye said the flight generated the configuration data and operational protocols needed to advance toward months-long flights.

What Comes Next

Sceye is now preparing for its first pre-commercial test flight in Japan, where it plans to demonstrate a backhaul connection into SoftBank’s core network and run connectivity trials for emergency and disaster response scenarios.

The company has also unveiled SceyeCELL, an antenna system it describes as a stratospheric cell tower designed to deliver high-speed connectivity at scale. Sceye’s stated goal is to use stratospheric platforms to extend network reach to unconnected populations and provide real-time monitoring for wildfire and disaster response applications.

Image credit: Sceye

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