Blade outer air seal

摘要

A turbine engine blade outer air seal segment (20) has a body (22) having a base portion (50). The base portion (50) has a transversely concave ID face (32), a forward end (24), an aft end (26), and first and second circumferential edges (28, 30) The body (22) has at least one mounting hook (42). At least one cover plate (60) is secured to the body (22) to define at least one cavity (90....93). The cover plate (60) has a plurality of feed holes (64). A plurality of outlet holes (70) extend through the base portion (50) to the ID face (32). At least one of the base portion (50) and cover plate (60) comprises a protruding portion protruding into the cavity to form a partial restriction (118) separating circumferentially and fore-aft offset cavity portions.