MANUFACTURER(S): Fokker Flugzeug-Werke GmbH - Germany
OPERATORS: Imperial Germany
LENGTH: 18.93 feet (5.77 meters)
WIDTH: 23.62 feet (7.2 meters)
HEIGHT: 9.68 feet (2.95 meters)
WEIGHT (EMPTY): 895 pounds (406 kilograms)
WEIGHT (MTOW): 1,290 pounds (585 kilograms)
ENGINE: 1 x Oberursel U.R. II air-cooled rotary engine developing 110 horsepower.
SPEED (MAX): 103 miles-per-hour (165 kilometers-per-hour; 89 knots)
RANGE: 186 miles (300 kilometers; 162 nautical miles)
CEILING: 19,997 feet (6,095 meters; 3.79 miles)
RATE-OF-CLIMB: 1,090 feet-per-minute (332 meters-per-minute)
Detailing the development and operational history of the Fokker Dr.I (Dreidecker) Triplane Fighter Aircraft.
Entry last updated on 8/8/2017.
Authored by Staff Writer. Content ©www.MilitaryFactory.com.
The Fokker Dr.I ("Dr" for "Dreidecker" meaning "triplane") series is most closely associated with Manfred von Richthofen (aka "the Red Baron") as the triplane aircraft was his chosen mount in the final months of his life, accounting for his last 20 kills. Designed to match the Sopwith Triplane and appearing by October of 1917, the Dr.I was a capable aircraft made more so by the pilots that flew her than the unique three-wing design. In the end, the system was limited in production quantity and saw a career spanning just the final year of the conflict, which by 1918, was being used as a defensive system over Germany.
Obviously the most identifying feature of the type was the three wing design made popular by the Sopwith Triplane - and proved itself a worthy design overall. Though inducing drag (which in turn caused a decrease in overall speed) the arrangement made for a highly maneuverable aircraft, quick to turn, and offered up a tremendous rate of climb while delivering in a steady dive. Overall the design was typical, featuring the pilot sitting in an open cockpit seated just behind the large wing structures. The undercarriage was fixed and dominated by two large wheels with a tail skid at the rear. Armament consisted of twin Spandau machine guns of 7.92mm caliber firing forward through the synchronized propeller system. The Dr.I was also one of the last aircraft types to feature a rotary piston engine in the Oberursel Ur.II 9-cylinder series.
Fokker Dr.I (Dreidecker) (Cont'd)
Triplane Fighter Aircraft
The initial 100 Dr.I's on order were delivered to Richthofen's fighter squadron in October of 1917 after combat evaluation. By the end of that month, it soon became apparent that there was trouble in the assembly of the wings to the point that some Fokker Dr.I's had broken up in mid-flight resulting in several fatal crashes. This, of course, forced the entire type to be grounded upon further review by an authorized crash commission. The resulting verdict was found to be in the construction of the wings. With adjustments made along the production lines at Fokker, the Dr.I was given the green light back into the air by end of November with all Dr.I wings checked and repaired/replaced if necessary. This setback no doubt attributed to the low production numbers overall, numbering just some 320 examples by the time the lines closed in May of 1918. By then, the fine machine was highly outclassed by her rivals and gradually disappeared into aviation history.
Where applicable, the appearance of U.S. Department of Defense (DoD), Russian Ministry of Defense, Chinese Ministry of Defense or British Ministry of Defence visual information does not imply or constitute endorsement of this website (www.MilitaryFactory.com). Images marked with "www.MilitaryFactory.com" or featuring the Military Factory logo are copyrighted works exclusive to this site and not for reuse in any form.
Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.
Relative Maximum Speed Rating
This entry's maximum listed speed (103mph).
Graph average of 90 miles-per-hour.
Graph showcases the Fokker Dr.I (Dreidecker)'s operational range (on internal fuel) when compared to distances between major cities.
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units