The pod has a tubular air intake (6) comprising an acoustic-attenuation internal tubular piece (10) of resonator type. A tubular transition part (17), which has an acoustically homogeneous internal face, connects the air intake to a tubular fan casing (16)...

Air inlet for a gas turbine engine with an active system (10) for the suppression of a ground vortex generated by the engine of an aircraft avoiding the vortex ingestion into the engine, the system includes an actuator assembly (14) in fluid communication ...

The liner system (50) includes a mode-scattering segment (48) providing a reactance between -12 and -2 rho c and a sound absorbing segment (40) providing a reactance between -1 and -0 rho c, to provide a reactance discontinuity, such that mode-scattering o...

The fence element has two posts connected by a transverse rail (3) supporting a number of vertical bars (5), the rail having U-shaped openings (31) that match the transverse cross-section of the bars formed by folding sheet metal. The bars can be partially...

The turboprop aircraft engine has an outer air intake (1) connected to an passage (2) supplying a compressor with air. The air intake passage can be helical along the longitudinal axis of the aircraft engine. The rotational angle of the helix is dependent ...

An aircraft (10) comprises a wing (12) having an upper surface (16) and a lower surface (18) and at least one turbofan gas turbine engine (20) mounted on the wing (12). The axis (34) of the at least one turbofan gas turbine engine (20) is arranged substant...

An internal bulge (10) is provided at the internal profile of the upper section of a lip (1), the bulge extending on either side of the throat (6b) of the horizontal sections (Sb) of the lip. The bulge is at a maximum at the upper vertical section of the l...

A movable ramp (8) is arranged on the external surface of a planar face (7A) of elongate duct (4). An actuator (10) moves the ramp between retracted and deployed positions in which the ramp is completely set back from an air inlet end (5) of the duct and i...

A dual boundary layer engine inlet for a turbofan propulsion engine of an aircraft having a first air inlet positioned generally within the boundary layer flowing around the exterior surface of the aircraft. A first passageway fluidly interconnects the fir...