The work comprised the detailed definition of experimental set-ups, system configurations and test schedules for all work packages. Rig experiments were conducted to define most promising bearing materials. Full size hybrid bearings have been manufactured and successfully tested under aero-engine representative operating conditions. Feasibility of an electrostatic sensor has been investigated to detect onset of wear.

Two-phase flow in a typical bearing chamber has been experimentally and numerically studied. Focus was on droplet generation by bearings and modelling of wall film flow. Rig experiments on bearing chamber sealing have been conducted to characterise flow conditions during leakage. Auto-ignition temperatures of oils and ignition delays have been measured under elevated pressures and varied boundary conditions.