Coated variable area fan nozzle, engine, and corresponding manufacturing method

摘要

A variable area fan nozzle (40) for use with a gas turbine engine system (10) includes a nozzle section (56, 56') that is movable between a plurality of positions to change an effective area (AR, AR 2 , AR') associated with a bypass airflow (D) through a fan bypass passage (30) of a gas turbine engine (10). A protective coating (74) is disposed on the nozzle section (56, 56') and resists change in the effective area (AR, AR 2 , AR') of the nozzle section caused by environmental conditions.