Inertial particle separator duct assembly with splitter

An inertial particle separator (IPS) duct assembly adapted to be fluidly connected to an air intake of an engine core of an aircraft engine, comprising:

• a duct having an inlet section extending downstream from an intake flow opening for receiving airflow to a junction, a scavenge flow section having a scavenge flow inlet in communication with the inlet section at the junction, a core flow section having a core flow inlet in communication with the inlet section at the junction, the scavenge flow section and the core flow section splitting from the inlet section at the junction, the scavenge flow section having a scavenge flow outlet downstream of the junction, the core flow section having a core flow outlet downstream of the junction and fluidly connectable to the air intake of the engine core;
• and
• a splitter cartridge removably mounted at the junction, the splitter cartridge including a splitter body extending between a duct wall of the scavenge flow section and a duct wall of the core flow section, the splitter body having a surface exposed to the airflow at the junction, the surface defining a leading edge of the splitter body extending in a direction transverse to the airflow at the junction.