Junkers J-9 (D1)

The unique, all metal, Junkers D1 (J9) first flew in April 1918 powered by a 185hp BMW engine. Due to the authorities prejudice towards monoplanes, the J9 monoplane fighter was named D1 which stood for Doppledecker (Bi-plane) one! Later they were fitted with a 200hp Benz and were armed with two machine guns. Forty one were made before the end of the war and they saw little or no action. The Junkers concept led to many "corrugated" aircraft from the F13's to the W34's and the immortal Ju52's.

Technorati: (d1) aircraft aviation front great j-9 junkers war warbird western ww1