Fokker Dr.I just after takeoff at the Old Rhinebeck Aerodrome in Rhinebeck, New York. No Dr.Is survive. The Aerodrome's reproduction has a more reliable, later engine. © John M. Shea

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Modeled on the Sopwith Triplane that was introduced in late 1916, the Fokker Dr.I (Dreidecker, or triplane) was most famously flown by the Red Baron, Manfred von Richthofen, and by other fighter pilots in his 'Flying Circus,' Jagdgeschwader I.

Introduced in October 1917, the Dr. I was highly maneuverable, but limited by the drag of the wing structure.

Variants on the plane included more powerful engines, increased wing span, modified wing struts, a four-bladed propeller, and a five wing version.

Engine: 110hp Oberusel Ur.II 9-cylinder rotary piston engine.

Maximum speed: 185km/h/115mph; ceiling: 6,100m/20,015ft; endurance 1hr 30mins

Length: 5.77m/18ft 11in. Wingspan: 7.19m/23ft 7in.

Armament: two fixed forward firing 7.92mm LMG 08/15 machine guns

Fokker Dr.I is an aircraft: single-seat scout plane.