Facts

• Company: AALTO
• Product type: UAV
• Status: active
• Website: https://www.aaltohaps.com/zephyr-haps/

Profile sections

• Summary
• Overview
• Market context
• Audience
• Workflow
• Capability
• Deployment environment
• Positioning tags
• Specifications
• Tags
• Timeline / Research
• Comparable Systems
• Sources

Summary

Zephyr HAPS is AALTO solar-powered high-altitude platform station. It operates in the stratosphere for persistent communications, earth observation and surveillance missions, combining fixed-wing flight with ultra-long endurance above weather and conventional air traffic.

Overview

Zephyr HAPS is AALTO solar-powered high-altitude platform station. It operates in the stratosphere for persistent communications, earth observation and surveillance missions, combining fixed-wing flight with ultra-long endurance above weather and conventional air traffic.

Market context

Zephyr is AALTO's solar-powered high-altitude platform aircraft for stratospheric connectivity and Earth observation services.

• Target environment: Stratospheric airspace above conventional aircraft routes and below satellites.
• Workflow context: Persistent aerial coverage, communications relay, Earth observation and wide-area monitoring.
• Deployment model: High-altitude platform service operated for telecom, observation and government customers.
• Commercial maturity: Commercialization-stage HAPS platform targeting service introduction in the mid-2020s.
• Adoption constraints: Requires aviation approvals, payload integration, ground operations, customer network integration and weather-aware deployment planning.
• Market position: Solar HAPS aircraft positioned between satellites and terrestrial network infrastructure.
• Adjacent products: Stratospheric UAV for connectivity, observation and persistent wide-area coverage.

Audience

Defense

Workflow

Persistent aerial coverage, communications relay, Earth observation and wide-area monitoring.

Capability

UAV

Deployment environment

Stratospheric airspace above conventional aircraft routes and below satellites.

Positioning tags

• Audience: Defense
• Workflow: Persistent aerial coverage, communications relay, Earth observation and wide-area monitoring.
• Capability: UAV
• Deployment environment: Stratospheric airspace above conventional aircraft routes and below satellites.

Specifications

• Ceiling: Above 18,300 m / 60,000 ft stratospheric operation
• Endurance: multi-month continuous flight target
• Wingspan: Around 25 m
• Weight: Around 75 kg
• Operational Environment: Stratosphere above weather and conventional air traffic
• Payload Options: Earth observation and connectivity payloads, including customer and third-party payloads
• Task Scope: Earth observation, near-real-time video, connectivity, and persistent stratospheric services
• Operational Role: Solar HAPS aircraft for persistent stratospheric sensing and connectivity

Tags

• Peer Group: Tactical ISR UAV
• Workflow: Drone ISR, Tactical reconnaissance
• Deployment Environment: Outdoor field environment
• Stack Layer: Finished robot platform
• Commercial Stage: Commercial product

Timeline / Research

• 2026-02-16 - Facility Opening - AALTO targets Australia as second Zephyr operating site - AALTO targeted Australia as the second launch and landing site for Zephyr after AALTOPORT Kenya.
• 2025-04-28 - Demonstration - Zephyr completes 67-day continuous stratospheric flight - Zephyr concluded 67 days, 6 hours and 52 minutes of continuous flight in the stratosphere on April 28, 2025.
• 2025-03-03 - Capability - Zephyr conducts stratospheric 4G connectivity test in Kenya - AALTO completed connectivity testing in Kenya on behalf of Space Compass and partner NTT DOCOMO.
• 2024-07-25 - Regulatory - AALTO receives UK CAA Design Organisation Approval for Zephyr HAPS - The UK Civil Aviation Authority granted AALTO Design Organisation Approval for Zephyr HAPS.

Comparable Systems

• IC Drone - Duke Robotics - UAV
• Fury - Anduril Industries - UAV
• IAI Heron - Israel Aerospace Industries - UAV
• Skydio X10 - Skydio - UAV
• Iroko UAV - Terra Industries - UAV
• Vector AI - Quantum Systems - Tactical Isr Drone
• XTENDER - XTEND - Reconnaissance UAV