Orenco IL-1
The Orenco IL-1 was an American two-seat liaison biplane built for the United States Army by the Ordnance Engineering Corporation. The Model E-2 was a conventional biplane powered by a Liberty 12 engine. Ordered on January 26, 1920 and designated IL-1 by the Army. First flown in March 1921, two aircraft were built and evaluated by the Army at McCook Field as P-147 and P-168, but the type did not enter production.