Inter-compressor flow divider profiling

A method of reducing flow distortion in an inter-compressor case for a gas turbine engine, the inter-compressor case comprising:

• an outer casing and an inner casing radially spaced apart relative to a longitudinal axis;
• a gas path extending from a plurality of radial inlets arranged in a circumferentially spaced apart array around the outer casing to an annular outlet defined by an axially extending downstream portion of the outer casing and an axially extending downstream portion of the inner casing;
• a plurality of struts having a gas path surface extending across the gas path between the outer casing and the inner casing;
• and
• a plurality of flow separators extending from the adjacent radial inlets, the flow separators having trailing edges disposed upstream of the annular outlet;
• the method comprising:
• providing the plurality of flow separators to include a plurality of full length flow separators and a plurality of truncated flow separators, the flow separators disposed adjacent to the struts, the truncated flow separators having a truncated trailing edge terminating upstream relative to the trailing edges of the full length flow separators.