The Platform

LHEVIA develops lighter-than-air platforms for sustained operations in the stratosphere.

Lighter-Than-Air Architecture

The platform is buoyant: it derives lift from displaced air rather than aerodynamic surfaces or rotors. Structure and envelope are sized for long-duration stratospheric flight. Propulsion is solid-state electroaerodynamic — ion wind generated by high-voltage electrodes — with no moving parts and no combustion. The system is electrically powered, suitable for integration with solar and battery sources aboard the vehicle.

Why the Stratosphere

Operations take place between 1 and 20 km altitude, above weather and ground interference yet well below orbital regimes. Air density at these heights is low; the platform is designed for that environment, not for denser lower air. Stationkeeping combines buoyancy with ion-wind thrust to hold position over areas of interest for extended periods.

Dual Payload Role

The vehicle serves as both a connectivity relay and an Earth-observation platform. As an aerial base station in the stratosphere, it sits far closer to users than satellites, reducing latency for broadband in underserved regions and for disaster-response communications. Concurrently, its high, persistent vantage supports monitoring of environment, land use, and disaster conditions.

Operations

The operational concept runs end to end: launch from the ground, ascent to station in the 1–20 km band, then position hold over an area of interest using buoyancy trimmed by ion-wind thrust, followed by a controlled descent and recovery for refit and reflight. Each phase is designed around the platform’s solid-state, electrically driven systems rather than consumable propellant.

Payload & integration

A modular payload bay carries communications equipment, observation sensors, or a combination of the two. The interface is designed for flexibility, so a platform can be configured for a connectivity role, an Earth-observation role, or a mixed mission without redesigning the airframe.

Contact LHEVIA to discuss platform applications.