The Fokker Dr.I (Dreidecker, “triplane” in German), often known simply as the Fokker Triplane, was a World War I fighter aircraft built by Fokker-Flugzeugwerke. The Dr.I saw widespread service in the spring of 1918. It became famous as the aircraft in which Manfred von Richthofen gained his last 19 victories, and in which he was killed on 21 April 1918.
Designer: Reinhold Platz
First flight: July 5, 1917
Primary user: Luftstreitkräfte
Number built: 320
General characteristics
Crew: 1
Length: 5.77 m (18 ft 11 in)
Upper wingspan: 7.19 m (23 ft 7 in)
Height: 2.95 m (9 ft 8 in)
Wing area: 18.7 m2 (201 sq ft)
Aspect ratio: 4.04
Empty weight: 406 kg (895 lb)
Gross weight: 586 kg (1,291 lb)
Powerplant: 1 × Oberursel Ur.II 9-cylinder air-cooled rotary piston engine, 82 kW (110 hp)
Propellers: 2-bladed fixed-pitch wooden propeller
Performance
Maximum speed: 180 km/h (110 mph, 97 kn) at 2600m
Stall speed: 72 km/h (45 mph, 39 kn)
Range: 300 km (190 mi, 160 nmi)
Service ceiling: 6,100 m (20,000 ft)
Rate of climb: 5.7 m/s (1,120 ft/min)
Lift-to-drag: 8:1
Zero-lift drag coefficient: 0.0323
Frontal area at zero-lift drag coefficient: 0.62 m2 (6.7 sq ft)
Armament
Guns: 2 × 7.92 mm (0.312 in) Maschinengewehr 08 “Spandau” machine guns
