INDROX
Bordeaux / FR
// Propeller Acoustics
Propeller Acoustics

INDROX

The future of quiet flight.
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Signature Reduction
6–10 dB
Product Line
INDROX 5027 · 7035
Validation
LES / CAA
Origin
Made in France
00 / Metrics

Performance, quantified.

Validated acoustic and aerodynamic gains across the operating envelope.

M.01
6–10dB

Acoustic Signature

Reduction at equivalent thrust vs. standard propellers.

M.02
½×

Detection Distance

Halved acoustic detection range — direct mission-window extension.

M.03
5–7in

Two Diameters

One acoustic geometry, scaled: INDROX 5027 and INDROX 7035.

M.04
30rev

LES / CAA Validation

High-fidelity computational sweeps — predictive, repeatable.

01 / Operators

Commercial Drone Operations.

Reduce community opposition. Gain regulatory approval. Unlock restricted airspace with platforms operators and regulators trust.

01.A — Operators

For Operators

Access restricted zones (residential, urban)
Reduce noise complaints and legal friction
Meet emerging DGAC / EASA acoustic standards
Improve mission acceptance rates
01.B — OEM Partners

For OEM Partners

Differentiate your platform acoustically
License proven acoustic IP
Access DGAC / EASA certification support
Unlock premium market positioning
02 / Defense

Defense & Stealth Applications.

Reduce acoustic detection distance. Extend mission windows. Enhance tactical discretion across sovereign aerospace programs.

02.A — Stealth

Acoustic Stealth

6–10 dB signature reduction at equivalent thrust
Halve detection distance vs. standard propellers
Multi-sensor signature management
Mission-critical performance assurance
02.B — Validation

Validated Technology

LES / CAA computational validation (30 revolutions)
Dual-use IP
Sovereign French aerospace engineering
03 / Products

Two propellers. One acoustic signature.

The same low-noise blade geometry, engineered at two diameters. Matte finish only — the way an instrument should be.

REF / IDX-5027
FPV
INDROX 5027
5.0 × 2.7 · TRI-BLADE
Diameter5.0 in Pitch2.7 in Blades3 FinishPC Made inFrance
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REF / IDX-7035
Long Range
INDROX 7035
7.0 × 3.5 · TRI-BLADE
Diameter7.0 in Pitch3.5 in Blades3 FinishPC Made inFrance
Explore in 3D ↓
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04 / Sovereign

Sovereign by design. Made in France.

Designed, simulated, and manufactured in France — a fully sovereign supply chain for acoustic propulsion, from blade geometry to finished part.

// ORIGINE
Made in France
44.83° N · 0.65° W
MÉRIGNAC / BORDEAUX MÉTROPOLE
Design · Simulation · Production — FR
Engineered in Bordeaux
Aeroacoustic design and LES / CAA simulation carried out in-house, Bordeaux Métropole.
Manufactured in France
Production and quality control on French soil. No offshore dependency, full traceability.
Dual-use ready
Aligned with French and EU defense procurement.
European certification
DGAC / EASA compliance pathways grounded in European regulation.
05 / Differentiators

Why INDROX.

Three principles separate INDROX from empirical propeller development.

01

Systematic Design

Not empirical iteration. High-fidelity aeroacoustic simulation (FWH, LES) for predictable, certified performance.

02

Platform Neutral

Drop-in geometry for existing UAV platforms. No platform lock-in — license or buy, globally.

03

Market Ready

Validated with operational partners. DGAC compliance pathways defined. Immediate commercialization.

06 / Contact

Open a dialogue.

Operators, OEMs, defense primes — let's discuss how INDROX can unlock new mission possibilities for your platform.

// INDROX.CONTACT
v2.0

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