The Junkers J1 was made by Junkers-Fokker Werke A.G., Germany. It held two men, the pilot and gunner/observer. It was powered by a 200 hp (150kW) Benz BZIV in-line engine. Due to it's relatively great weight of 4,700 lb (2,140 kg) it was a slow aircraft, achieving only 96 mph (155 km/h). The ceiling and range are not known as it typically flew at low levels. It was armed with two or three 7.92 mm machine guns, one on the cowl and either one or two for the rear gunner. Although downward-firing machine guns were planned, they were found too difficult to aim and were not used.