SOLAR-ELECTRIC · UNCREWED · STRATOSPHERIC

Runs on sunlight.
Stays up for weeks.

A 75-kilogram aircraft with the wingspan of an airliner, flying above weather and air traffic on nothing but the sun — persistent like a satellite, close like a plane.

MAIDEN FLIGHT · CONTINUOUS TIME ALOFT

00days
00hrs
00min

Longest continuous flight of any aircraft, set on the maiden flight.

25 000 mmPV SKINAUM 75 kg

AIRFRAME MASS

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Lighter than its pilot would be

WINGSPAN

0m

Carbon fibre, solar-skinned

OPERATING ALTITUDE

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Above weather and traffic

LOAD FACTOR

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Supports 5× its own weight

ENERGY SYSTEM

Daylight is the fuel. Batteries are the night shift.

Photovoltaic skin across the wing powers flight and charges secondary batteries while the sun is up. After dusk, the batteries carry the aircraft through to the next sunrise. Drag to orbit — hover the wing, battery and motors for detail.

LOADING FLIGHT MODEL…

SIM 13:40 UTC · ALT 21 340 m

DUTY CYCLE — CHARGING · PV → BATTERY + MOTORS · SOC RISING · MARGIN NOMINAL

WHAT IT DOES

A satellite’s patience, twenty kilometres up.

See clearly

Persistent optical coverage of a fixed area for weeks — resolution close to aircraft, dwell time close to satellites.

Sense efficiently

Long-dwell sensing for weather, crops, coastlines and infrastructure without launch windows or orbital passes.

Connect precisely

A communications node parked in the stratosphere, closing coverage gaps that towers and satellites both miss.

FLIGHT RECORD

Twenty-five days without touching the ground.

  1. T+00:00

    Launch

    Hand-launched at dawn. Climb to the stratosphere begins on solar power alone.

  2. T+04 d

    Station reached

    Holding above 18 km — above weather, jet streams and commercial traffic.

  3. T+14 d

    Record surpassed

    Passes the previous absolute endurance record for uncrewed flight.

  4. T+25 d

    Touchdown

    Lands after 25 days, 23 hours, 57 minutes airborne. A new benchmark for flight itself.

TECHNICAL SPECIFICATION

Built from fibres finer than a human hair.

CLASS
High-altitude platform station (HAPS)
PROPULSION
Solar-electric, twin brushless motors
ENERGY
Photovoltaic skin + secondary batteries
NIGHT OPS
Battery reserve charged in daylight
WINGSPAN
25 m
MASS
75 kg
CEILING
> 21 000 m — above the ozone layer
STRUCTURE
Fibres finer than a human hair