The AEG R. I (Riesenflugzeug - giant aircraft) was a four-engined biplane bomber aircraft of World War I. It was unusual for a multi-engined aircraft in that rather than mounting propellers directly to the engines and mounting these in nacelles the R. I carried all its engines within the fuselage and turned its propellers via a system of drive shafts. A single prototype was completed and flew in 1916. Initial flights were quite successful. The aircraft was considered very maneuverable.
Made by AEG.