Abstract: An annular molded composite wear sleeve (40) is bonded with epoxy or other bonding agent in an annular V-groove (34) in a groove ring (64). Wear sleeve (40) may include forward and aft sleeve walls (46, 48) extending at forward and aft sleeve obtuse angles (50, 52) away from a sleeve bottom (44) and may include annular forward and aft sleeve fillets (54, 56) between sleeve bottom (44) and forward and aft sleeve walls (46, 48). Aft sleeve wall (48) may include an aft flap (60) compliant with an annular aft taper (62) on groove ring (64). An aircraft gas turbine engine cowl clamping mechanism (22) for clamping a clamshell cowl (20) to a fan casing (26) includes groove ring (64) on a fan casing (26) and molded composite wear sleeve (40) bonded with epoxy or other bonding agent in annular V-groove (34) in groove ring (64). Annular V-blade (30) is on clamshell cowl (20) rotatable to insert annular V-blade (30) in annular V-groove (34).

Abstract: Dampers for fan spinners of aircraft engines are disclosed. An example fan module for a gas turbine engine may include a fan disk; fan blades mounted to the fan disk and extending radially therefrom; a fan spinner operatively coupled to the fan disk at an axially upstream position; and/or one or more elastic vibration dampers operatively interposing the fan spinner and the fan disk. The elastic vibration dampers may be disposed circumferentially around an interface between the fan spinner and the fan disk and may be compressed axially and/or radially.