J.Herris AEG Aircraft of WWI (A Centennial Perspective on Great War Airplanes 16)
AEG Igel Project
On July 22, 1916, Idflieg issued specifications for a two- or three-seat reconnaissance machine powered by a 500 hp Mercedes engine (called the Igel-hedgehog) buried in the fuselage. A climb to 4000 meters in 24 to 26 minutes and a top speed of 215 km/h were specified. The buried Igel engine would drive two outrigger-mounted propellers at 900 rpm. A nose and rear gun position provided defensive armament. To speed development it was proposed to build different wing cellules for comparative trials. Idflieg preferred a triplane configuration to achieve a high climb rate. AEG was chosen to design and build a prototype because "their recent aircraft have been good and steel tube construction was especially amenable to experimentation." Albatros was not considered because they were already fully busy with new designs, and Idflieg judged the task to be too difficult for other firms. The drawings for the Igel project biplane were completed by AEG in October 1916. It is unknown if assembly work was started, but it is certain the type was never completed.