Abstract: An advanced warning system for a turbine, the system comprising: one or more near-field and far-field sensors locatable remotely from the turbine and upstream of the turbine; a communication link between the turbine and the one or more near-field and far-field sensors for transmitting data from the one or more near-field and far-field sensors to the turbine; and a controller for adjusting operational settings of the turbine, wherein, in use, the controller adjusts the operational settings as a function of the received data from the one or more near-field and far-field sensors.

Abstract: A cowl cavity is defined between a core engine cowl and an engine inner casing. A core fairing is provided at the forward end of the engine inner casing and has a radially outer surface which, with the cowl, provides an airwashed surface of a bypass duct. A plenum is provided within the cowl cavity and receives air from bypass flow through openings in the surface. Conduits extend from a partition defining the plenum to distribute air to locations and components within the engine.