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Made of air.

The dAS20 is an electric aircraft whose wing is a pressurized textile. Eight meters across, sixty kilograms, no helium. It took off for the first time on 7 May 2026.

8.0 m

wingspan

MEASURED

60 kg

mass, batteries included

MEASURED

20 kg

customer payload

TARGET

Multi-hour

endurance

TARGET

100%

electric

BUILT

10+

takeoffs since May 2026

MEASURED

01 — The wing

A rigid wing is dead weight. Ours is pressure.

Coated textile, welded at high frequency, inflated with ambient air: the dAS20's wing carries the aircraft with a fraction of the mass of a conventional structure. No lifting gas to buy, store or lose, and an eight-meter span that folds into a bag.

Air, not helium. Pressure gives the wing its shape and stiffness. The structure is textile, the lift is aerodynamic.

Electric by design. Low mass makes battery flight viable. No fuel to carry, store or handle in the field.

Folds, travels, deploys. Wing folding is already demonstrated. The full system is designed to fit in a car.

The 8 m wing inflated in a hall
The wing folded in its transport bag
Disassembled kit with a person for scale

Inflated

Folded in its bag

Disassembled kit

The dAS20 prototype in front of its hangar
The dAS20 taking off from Le Havre airport
02 — Flight

7 May 2026

First takeoff, Le Havre airport. Built in six months by two founders.

10+

takeoffs and first short flights since

~3 months

to obtain the flight-test authorization

TRL 5

next: controlled, repeatable flight and endurance

03 — Missions

Stay back. See far. Stay connected.

The dAS20 is built for stand-off surveillance and communications relay: it holds position behind the line, observes with radar or EO/IR sensors, and bridges units, drones and ground robots where terrain blocks a direct link. Defense and security first; inbound demand already extends to maritime, energy, infrastructure and environmental monitoring.

Illustration: the dAS20 observing a contested area and relaying communications to ground units

Persistence comes from the fleet, not from a single aircraft.

Sizing scenario: six aircraft on two bases about 100 km apart, rotating for continuous coverage.

Based on target endurance and turnaround time.

Concept: inspection of railways, power lines and pipelines
Concept: land and maritime border surveillance
Concept: early wildfire detection
Concept: urgent deliveries to industrial and offshore sites

MISSION CONCEPT

Linear infrastructure

Railways, power lines, pipelines and perimeters over long distances.

MISSION CONCEPT

Borders and coastlines

Wide-area observation, tracking and support to authorities.

MISSION CONCEPT

Wildfire detection

Confirm alerts fast where fixed cameras cannot see.

MISSION CONCEPT

Urgent logistics

Critical parts to industrial and offshore sites.

04 — Signal

The market came to us before we built a sales team.

30+

organizations contacted us, unprompted

14

countries

2

signed letters of intent — ROAV7 and Lux Avia Services

1

proof-of-concept under discussion with a major aerospace and defense group

Defence Blog

"French startup flies cargo drone with an inflatable wing"

Defence Blog, 26 May 2026

Interesting Engineering

"French firm's 'flying marshmallow' drone to boost aerial logistics safety"

Interesting Engineering, 14 May 2026

OpexNews

"Le drone gonflable de Celeste Ecoflyers intrigue la défense"

OpexNews, 18 May 2026

Also in

TechRadar Pro
New Atlas
Clubic
DRONE
Média24
GlobalSpec
Yanko Design
05 — Company

Two founders. One hard problem each.

Olivier Manette and Benjamin Degasne with the dAS20 prototype at dusk

Olivier Manette

CEO — autopilot and embedded AI

PhD in computational neuroscience, licensed ULM flight instructor. Ten years as founder-CEO of Flod.ai, a deeptech company building sensors and AI for infrastructure monitoring (Techstars, EDF Pulse).

LinkedIn →

Benjamin Degasne

CTO — inflatable wing and industrialization

Textile engineer (ENSAIT), twenty years in pneumatic structures: 50+ innovations, 10+ products industrialized, 4 patents, projects for Airbus, GE, LVMH, Hutchinson and Stellantis. CES Innovation Award 2026.

LinkedIn →

Backed, supported and supplied by

IAI × Starburst — ASTRA 2025

Impact Builders 2026

Agence de l'Innovation pour les Transports
MATEDUC Composites
Airtechnic
ROAV7
NAE Normandie AeroSpace
Aéroport Le Havre-Octeville
Solar Impulse Foundation
GreenTech Innovation

Today — TRL 4 — First takeoffs. 10+ since May 2026.

Next — TRL 5 — Controlled, repeatable flight and endurance. First paid proofs of concept.

Then — TRL 6 — Full mission with a customer payload.

After — Programs — First paid programs. Series A.

Investors

€1M

Seed round, equity, open now.

Complemented by €1.5M in targeted non-dilutive funding. The round takes the dAS20 from prototype to a customer-ready system.

Flight control: autopilot, repeatable flight

Flight testing: endurance and wind envelope

Payload integration up to 20 kg

Production and quality for a first series

Patents and three key engineering hires

Request the investor deck Technical data, market, IP status and financials.

You are

Questions we get

How long can it stay up?

The first dAS20 targets multi-hour flights. Later models on the same technology target multi-day endurance, with solar assistance. Meanwhile, a small fleet in rotation gives continuous coverage.

What are the key figures?

8 m wingspan and 60 kg measured on the current prototype, batteries included, customer payload excluded. Design targets: up to 20 kg of payload and multi-hour endurance, 100% electric.

Who are your first customers?

Defense and security: stand-off surveillance and communications relay. Inbound demand already extends to maritime, energy, infrastructure and environmental monitoring.

How do you operate in European airspace?

In the EASA Specific category, with an authorization and SORA risk assessment per mission scenario. Our first flight-test authorization came in about three months, with support from ONERA and DSAC.

Celeste EcoFlyers

Inflatable-wing electric aircraft. Designed, built and flown in France.

CONTACT

FOLLOW

RECOGNITION

Solar Impulse Efficient Solution 2025

GreenTech Innovation 2024

VivaTech 2026 exhibitor

© 2026 Celeste EcoFlyers · Figures marked TARGET are design targets of the dAS20 program.

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