=BLW=Pablo Posted June 21, 2024 Posted June 21, 2024 Hello everybody! Have you ever wondered if there was a Fokker D.VI? Yes there is, and the difference between a Fokker D.VI and a D.VII is the same difference as a P-36 and a P-40, the engine. Due to the lack of specific lubricants for rotary engines, the DVI was left aside for a model that became very famous, in this case the D.VII Quote The Fokker D.VI was a German fighter aircraft built in limited numbers at the end of World War I. The D.VI served in the German and Austro-Hungarian air services. Design and development[edit] V.13 prototype In late 1917, Fokker-Flugzeugwerke built two small biplane prototypes designated V.13. These aircraft combined a set of scaled-down D.VII wings with a fuselage and empennage closely mirroring those of the earlier Dr.I.[1] The first prototype utilized an 82 kW (110 hp) Oberursel Ur.II rotary engine, while the second featured a 119 kW (160 hp) Siemens-Halske Sh.III bi-rotary engine.[2] Fokker submitted both prototypes at the Adlershof fighter trials in late January 1918.[3] At that time, Fokker reengined the first prototype with the 108 kW (145 hp) Oberursel Ur.III.[3] Pilots found the V.13s to be maneuverable and easy to fly.[4] Idflieg issued a production contract after the V.13s were ultimately judged to be the best rotary powered entries of the competition.[4] Operational history[edit] Fokker D.VI The new aircraft, designated D.VI, passed its Typenprüfung (official type test) on 15 March 1918.[5] The production aircraft utilized the Oberursel Ur.II, which was the only readily available German rotary engine. Idflieg authorized low level production pending availability of the more powerful Goebel Goe.III.[5] Deliveries commenced in April and ceased in August, after only 59 aircraft had been completed.[6] Seven aircraft were delivered to the Austro-Hungarian Air Service (Luftfahrtruppen). In service, the D.VI was hampered by the low power of the Oberursel Ur.II.[5] Moreover, the lack of castor oil and the poor quality of "Voltol," an ersatz lubricant, severely reduced engine life and reliability.[1] The D.VI remained in frontline service until September 1918, and continued to serve in training and home defense units until the Armistice. Variants[edit] V.13/1 : First prototype, powered by a 108 kW (145 hp) Oberursel Ur.III rotary engine V.13/2 : Second prototype, powered by a 119 kW (160 hp) Siemens-Halske Sh.III rotary engine Specifications[edit] Fokker D.VI Baubeschreibung general arrangement drawing, as submitted to (and required by) IdFlieg General characteristics Crew: one pilot Length: 6.25 m (20 ft 6 in) Wingspan: 7.66 m (25 ft 1 in) Height: 2.55 m (8 ft 4 in) Wing area: 17.7 m2 (190 sq ft) Empty weight: 393 kg (866 lb) Gross weight: 585 kg (1,290 lb) Powerplant: 1 × Oberursel Ur.II , 82 kW (110 hp) Performance Maximum speed: 197 km/h (123 mph, 107 kn) Range: 300 km (186 mi, 162 nmi) Endurance: 1 hours 30 minutes Service ceiling: 6,000 m (19,680 ft) Armament 2 × 7.92 mm (.312 in) LMG 08/15 "Spandau" machine guns I'm sure it would be a great addition to COLLECTOR PLANES 1 2
ST_Catchov Posted June 21, 2024 Posted June 21, 2024 1 hour ago, =BLW=Pablo said: Have you ever wondered if there was a Fokker D.VI? Why yes, yes I have. She has a handy turn of speed for an underpowered rotary I must say. And quite cute. One can never have enough of those little Fokkers. One day we might even get the Eindecker. 2
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