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CIRTRANS PartnerSAFRANSAFRAN

Safran is an international high-technology group, operating in 4 markets : Aviation and space propulsion, Aerospace equipments, Aircraft interiors, Defense.
The group has over 92000 employees across 27 countries :
- 6145 of them work at Safran Helicopter Engines (SHE) and 586 at the subsidiary Safran Power Units.
- 1900 at Safran Transmission Systems (STS).
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STS

Safran Transmission Systems is a key company in the aerospace power transmission market, with over 60% market share for commercial aircraft with more than 100 seats, more than 50,000 transmissions delivered to date, and over 1 billion flight hours logged.

We design, certify, manufacture, and support aerospace power transmissions for the civil, military, and business jet markets.

The mechanical transmissions designed and produced within Safran Transmission Systems perform several essential functions of the aircraft propulsion system :
• Transmitting the mechanical power of the turbomachine to the various engine accessories (fuel pump, lubrication unit, etc.) and aircraft accessories (electric generators, etc.)
• Driving the turbomachine during startup using the starter motor - Managing transient load transmission phases during energy generation/recovery on hybrid systems
• Decoupling the speed of the propulsion module (fan) from its drive system (gas turbine) using a power reducer.

With essential modules in the new propulsion system architectures, Safran transmissions are at the heart of product performance and energy efficiency challenges.

SHE

Safran Helicopter Engines is the world number 1 on the helicopter propulsion market with over a third of the market share.
Safran power Units is positioned on auxiliary power units and starter systems for the civil and military aerospace, turboreactors for missiles and target drones.
We design, certify, manufacture and maintain these aerospace turbines.

The mechanical transmissions designed and made by Safran HE must satisfy the highest standards of safety and availability. Their functions are:
• Transmitting the power between the turbine and the helicopter main gearbox.
• Driving the equipments necessary for the turboshaft engine (oil and fuel pumps, electrical generator…).
• Driving the gaz generator with the starter in order to perform the starting of the engine.