E-PROPS DETAILS
The E-PROPS Company
195, Route de l'Aviation
ZI Aérodrome de Sisteron
04200 VAUMEILH - France

The best way to contact our team is by email:
contact@uav.e-props.fr

The E-PROPS Company


Since 2008, the E-PROPS company designs, tests, manufactures and provides ultra-light carbon propellers for drones.

eprops company workshop


1- Company description

- E-PROPS PROPELLERS (SAS ELECTRAVIA HELICES E-PROPS)
- Company created in 2008
- A team of 53 aeronautical engineers and technicians
- Ultra-modern workshops of 7200 m² based in Sisteron, Provence, France

- Innovative, high efficient, solid, E-PROPS are the world's lightest propellers
- High performance due to profiles optimization, using evolutionary algorithm (metaheuristics) & use of top materials (Carbon, Titanium)
- E-PROPS exports 90% of its production to 84 different countries

- Manufacture of carbon parts in RTM (Resin Transfer Molding), HCF (Helical Continuous Fibers) process
- Automated mass-production of the production : : 75000 propellers blades / year
- Certifications : PART 21 G, ATSM F2506-13, CS22J and CS-P


2- Brief history

The ELECTRAVIA - E-PROPS team is known for its electric motorizations systems developed for leisure aviation (engines, controllers, dedicated instruments, batteries BMS, special propellers), as well as for aircraft equipped with these new successful and silent propulsion systems made between 2008 and 2014.

During 6 years, more than 70 aircraft with electric engines have been developed by the team, including the famous ELECTRA (1rst worldwide 100% electric aircraft, 1rst flight in December 2007), the CRI-CRI Cristaline (1rst worldwide electric twin-engines, world speed record for electric aircraft from 2010 to 2018), the E-FENIX (1rst worldwide electric two-seater paratrike), the E-SPIDER (1rst worldwide electric two-seater paramotor), the ELECTRO-LIGHT (electric motoglider range 1h30)...
The ELECTRAVIA engineers have developed controllers and batteries BMS, have integrated engines and adapted airframes of different aircraft. As they didn't find specific propellers for electric engines on the market, they also have designed, tested and manufactured propellers specially adapted to this type of engines.

electravia electra 1rst electric aircraft
ELECTRA F-WMDJ / electric engine 25 hp / 1rst flight 23 Dec 2007, 48 min, Aspres-sur-Buëch, France
The story here : Article in the French aeronautical magazine VOLEZ

From 2014, the company has suspended its electric motorisation activities, pending the availability of batteries with greater autonomy and a recharging time more suited to aeronautical use. The E-PROPS team now focuses solely on the design and manufacture of its propellers.

Today, this great expertise combined with the means implemented to produce carbon propellers allows E-PROPS to participate in many innovative aircraft projects, as a supplier of ultra-light and extremely efficient mechanical propulsion solutions.
E-PROPS, a major global player in the aircraft carbon propeller sector, is involved in many innovative drones projects.


3- Team

The family-owned company has been created in 2008 by 3 aviation enthusiasts and pilots.
Today, the E-PROPS team is composed of 53 aeronautical engineers and technicians :
- 29 in the workshops
- 18 at design department
- 6 for commercial / management

A great team of engineers and technicians, all competent and passionate.


4- Workshops

E-PROPS's headquarters, research office and workshops are located on Sisteron airfield (LFNS), Provence, France.
The industrial area has an access to the 1000 m runway.

Ultra-modern 7200 m² workshops:
- Different and dedicated workshops: propellers workshops, prototyping, mechanics, electronics for a production capacity of 75000 blades / year
- 35 machining CNC centres, including an innovative 8-axis centre with laser scanner to analyze blades and hubs
- a high-temperature furnace and forming dies for Titanium leading edge protection
- ovens high & medium temperatures / small & big capacity
- Lathes and conventional milling machines
- Welding systems
- Offices and meeting rooms

Manufacturing :
E-PROPS ensures the production monitoring by RFID and KANBAN method.
These methods and tools optimize the manufacturing quality, reassure and fluidify the supplies, allow the real-time follow-up of the production process, the traceability of all the manufacturing steps, and offer a set of successful and reliable indicators.

Quality system : PART 21G level - All propellers for drones are ASTM F2506-13 certified.

Testing :
- A fatigue tests bench, to stress the blade with alternating bending, to reproduce the engine's torque, and to establish the real propellers' potential
- A traction tests bench : 40 tonnes hydraulic cylinder. High : 3,5 m. Weight : 300 kg
- Other tests benchs, for many different mechanical tests.

... all what is necessary for conception, tests, manufacturing and marketing of the innovative E-Props propellers

eprops company workshop



Fixed Props for engines 7-50 kW dia 45 to 63 inch
Adjustable Props for engines 50-168 kW dia 47 to 82 inch