The first new F-15EX Eagle fighter jets have arrived at the Portland Air National Guard Base for the 142nd Wing. These will replace the older F-15C models that have been serving since the 1980s (the newest was built in 1985). The F-15 was originally built as a dedicated air superiority fighter but has since been developed into a multirole fighter. F-15s boast an outstanding combat record with none being shot down in air-to-air combat.