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COMAC 919 nacelles

LEAP-1C - The sole Western powerplant for the COMAC C919

COMAC 919 nacelles

Safran Nacelles

Nacelle length 5.2 meters

Nacelle diameter 2.5 meters

Thrust reverser type O-Duct Cascade reverser

Engine reference CFM International LEAP-1C

Aircraft category/class Mid-range airliner

The nacelles manufactured by Nexcelle, the 50/50 joint venture between Safran Nacelles and Middle River Aerostructure Systems (ST Engineering), equip the CFM International LEAP-1A powered COMAC 919.

COMAC 919 nacelles

Product Nacelles and thrust reversers

Safran Nacelles

Nacelle length 5.2 meters

Nacelle diameter 2.5 meters

Thrust reverser type O-Duct Cascade reverser

Engine reference CFM International LEAP-1C

Aircraft category/class Mid-range airliner

More than  60% of the C919 LEAP-1C nacelle is composed of composite material.

The C919 LEAP-1C nacelle enables a 50% reduction in engine noise.

The O-Duct: an innovative thrust reverser.

The COMAC C919’s Integrated Propulsion System (IPS®) is composed of the nacelle and the C919 engine: it optimizes the interface between the pylon, the nacelle and the engine, generating mass reduction and increasing performance.

0.5 %

of fuel saved per flight through the O-duct thrust reverser.

First C919 flight

C919 first flight
COMAC C919 nacelles

Innovative technologies on board our nacelles

COMAC C919 O‐Duct Nacelle (Safran Nacelles)

Thrust reverser electric actuation system

The deployment of the O-Duct is activated by the Electrical Thrust Reverser Actuation System (ETRAS), which replaces the heavier hydraulic systems traditionally used on thrust reversers.


ETRAS offers the following benefits: simplified design, mass reduction, simplified maintenance, the elimination of corrosive hydraulic liquids.

 

Innovative O-Duct thrust reverser
Control of pinches on the flaps of the C919 nacelle
Control of pinches on the flaps of the C919 nacelle
Control of pinches on the flaps of the C919 nacelle
© Adrien Daste / Safran
A-scan Control of the O-Duct’s sound panel associated with the Comac C919
A-scan Control of the O-Duct’s sound panel associated with the Comac C919
A-scan Control of the O-Duct’s sound panel associated with the Comac C919
© Philippe Stroppa / Safran Safran Nacelles is a leading worldwide nacelle…

Support and Services

NacelleLife™ logo

24/7 after sale support

C919 customers benefit from proactive 24/7 after-sales support and a full range of bespoke services for their in-service nacelles. Using standard tooling to open the O-Duct thrust reverser, access to the engine is optimized. As it is attached to the pylon, it can be replaced directly under the wing, like any LRU (Line Replaceable Unit), and can therefore be rapidly reinstated for service, avoiding the need to change the inversion system (TRAS). 
 

  • © Antonio Gomez / Safran
  • © Safran Nacelles
  • © Philippe Stroppa / Safran
  • © Adrien Daste / Safran
  • © Cyril Abad / CAPA Pictures / Safran
  • © COMAC