MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
A cylindrical, stainless steel, sheet metal duct which is attached, via a clamp, to the exhaust frame of the turboprop engine under test; exhaust mixing duct used during post overhaul engine testing in a turbine engine test cell; also used to direct the engine's exhaust from the engine into the test cells augmentor tube and exhaust stack; exhaust mixing duct also has provions for measuring exhaust static pressure
