LUBRICATION OF EPICYCLIC GEAR SYSTEM FOR GAS TURBINE ENGINE

An epicyclic gear system (36) includes a sun gear (42), a ring gear (40), and two or more star gear assemblies enmeshed between the sun gear and the ring gear. Each star gear assembly includes a star gear (38) and a journal bearing (44) supportive of the star gear. The journal bearing includes one or more lubricant passageways (54, 56) to deliver a flow of lubricant to a selected location of the star gear assembly, wherein a first cross-sectional area of a lubricant passage of a first journal bearing of the two or more star gear assemblies is greater than a second cross-sectional area of the corresponding lubricant passage of a second journal bearing of the two or more star gear assemblies.