Junkers J.I
was desined as a low altitude ground attack and recon plane. It had a Duralumin fuselage tube construction and the wings were made of corrugated Duralumin sheets. The pilot's and oberserver's seat area were protected by a chrome nickel steel plate.
A total of 184 aircraft were delivered to IDFLIEG until October 1918. Another 43 aircraft were already completed, when the war ended.