DeHavilland DH-4 Modern Military US certification (with PW-4000s) was

US certification (with PW-4000s) was awarded in January 1989

on August 26

in instrument conditions

It can perform a variety of missions

DeHavilland DH-4 Modern Military US certification (with PW-4000s) wasDeHavilland DH 4 airplane model. Although the DH 4 was originally a British combat airplane, it was redesigned in the U. S. in 1917 for the famed Liberty engine. The airplane was used by the U. S. Air Service in France primarily for observation, day bombing, and artillery spotting. It carried the nickname "The Flaming Coffin" because of the supposed ease with which it could be shot down in flames but, in reality, only eight of the 33 DH 4s lost in