Through the development and the production of this high-technology nacelle, which contributes to both the aircraft and the propulsion system’s performance, Safran Nacelles demonstrated its expertise in the medium and long-range business jet sector.

Latest generation nacelle

High performance equipment

Safran Nacelles builds and delivers the complete nacelle for Rolls-Royce' Pearl 700 turbofan engines on the G700

The latest generation of nacelles for large-cabin business jets

Through the development and the production of this high-technology nacelle, Safran Nacelles demonstrated its expertise in the medium and long-range business jet sector. Safran Nacelles’ proven track record in the domains of thrust reverser integration and manufacturing processes for acoustic treatment made the design of this very high-end nacelle possible.

The main Pearl 700 nacelle components

ts main components are:

- the air inlet, which contributes to the noise reduction and the stabilization of the fan blades,

- the fan cowl doors and the thrust reverser doors, manufactured in composite materials for enhanced aerodynamics and increased resistance to high temperatures and fire,

- the two-door PERT^® (Planar Exit Rear Target), which provides further aerodynamics,

- the apron which acts as the mechanical and electrical interface between the aircraft and its propulsion system.

The thrust reverser as a braking mechanism on landing

The G700/G800 nacelles are equipped with the 2-door PERT^® thrust reversers. Panels inside the nacelles open when activated by the pilot, redirecting the air flow towards the front and generating the counterthrust which assists with braking on landing. The thrust reversers ensure braking of the plane, especially on short, wet, snowy or icy landing strips.

Safran Nacelles has expertise in the assembly of aerostructures such as thrust reversers. The company has control over all the parts assembly processes: they are positioned meticulously, adjusted to the structure using shimming, drilling, milling, countersinking, bonding and riveting.

Honeycombing of GE Passport thrust reverser in composite cleanroom

Composites for a lighter mass

The use of composite materials reduces the nacelle mass. Safran Nacelles holds a unique expertise in large composite parts, with complex shapes (omega shaped) and varying thicknesses.

Acoustic treatments to reduce engine noise

Honeycomb acoustic treatment is applied in strategic areas of the G700/G800 nacelle composite panels. Many thousands of holes are drilled in the composite skin so that the noise can disperse and be captured in the honeycomb core. This process significantly reduces the engine noise. Safran Nacelles holds a unique expertise in engine environment acoustic technology.

The Gulfstream G700/G800 nacelle

NacelleLife™, a comprehensive service offer

NacelleLife™ provides a large range of services adapted to the operators’ specific needs and covers the entire life of the aircraft, from entry into service preparation to operational retirement.
Objective: maximization of availability and minimization of maintenance costs at every step.