A system for preventing foreign objects from entering an air unit (10) of an aircraft is provided including a reverse J-tube (48) mounted to a wall (70) of a ram air header (20). The first end (94) of the reverse J-tube (48) defines a portion of a cool flu...

A system for conditioning air flow (16) to a gas turbine includes a filter housing (12) and a conditioning media (40) inside the filter housing (12) to adjust the temperature of the air flowing through the filter housing (12). At least one of a depth (50) ...

The duct (30) has filters (32, 34) arranged in the duct, for cleaning intake air (A) that flows through the duct. Flaps (36) are arranged downstream of the filters for temporary flow of unfiltered intake air into an inlet (26) of a compressor (12) of a sta...