Windracers ULTRA™ MK2 – The Jeep of the Skies
The Problem
Find a low-cost way to deliver long-range emergency humanitarian support to remote communities or where road infrastructure is poor or non-existent.
The Solution
Windracers ULTRA™, a low-cost, dependable self-flying cargo aircraft powered and controlled by advanced autopilot and mission control software.
Today and Next
Windracers ULTRA™ is a system that combines our rugged cargo aircraft, integrated autopilot and mission control software, and operational services derived from civilian and military aviation best practices. Not only serving humanitarian needs, Windracers ULTRA MK2, launched in January 2025, is disrupting the middle-mile logistics market today through its low-cost, dependability and autonomous operation.
Aircraft: Low-Cost, Dependable, Autonomous
Windracers ULTRA is the world’s most accomplished long-distance heavy-lift cargo UAV available today. Windracers ULTRA has flown countless BVLOS missions including reconnaissance and resupply in Ukraine, geological and wildlife surveying in Antarctica, parcel delivery off the Scottish and English coasts, wildfire detection, and dropped medical supplies by parachute.
Windracers ULTRA MK2 has been designed, constructed, tested and deployed with high-redundancy, ensuring minimal risk of failure so you can rely on it, no matter the circumstances. Learn more about ULTRA MK2 below.
| Distance | Up to 1,000 km (with extended endurance fuel tank) | |
| Useful Payload | Up to 150 kg | |
| Internal payload | 700 L volume | |
| Operations | Day, night & fog | |
| Max climb rate | 800 ft/min at 450kg | |
| Cruise speed | 77 knots/hour | |
| Engine | 2 HIRTH F23 45 bhp engines | |
| Fuel | Unleaded fuel/oil mixture | |
| Nominal Endurance | 7 hours (9 with extended endurance fuel tank) | |
| Max take-off mass | 510 kg | |
| Service ceiling | 13,000 ft | |
| Automatic landing ground roll | <150 m (wet and dry) | |
| Communications | 1 HD streaming video camera (on tail) | |
| Internet | High-speed low-latency SATCOM | |
| Runway | Dirt, grass, tarmac and ice |
Software: Autonomy and Control
Windracers Autopilot™ onboard software guarantees that ULTRA MK2 safely and reliably carries out complex missions. The software is powered by Windracers Masterless™ that utilises a Zero Single Point of Failure philosophy.
Windracers Mission Control™ plans the mission, works with Windracers Autopilot to provide real-time feedback on the aircraft’s status, and controls the mission. Windracers Mission Control enables operators to modify or change missions as needed quickly even during the flight.
