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Oertz W 6 Flugschoner

Страна: Германия

Год: 1916

Oertz - W 5/W 7 - 1915 - Германия<– –>Oertz - W 8 - 1917 - Германия


O.Thetford, P.Gray German Aircraft of the First World War (Putnam)


Oertz W 6 Flugschoner
   Engines, 2 x 240 h.p. Maybach Mb IV. Span, 200 m. (65 ft. 7 1/2 in.). Length, 14.53 m. (47 ft. 8 1/8 in.). Height, 4.78 m. (15 ft. 8 1/4 in.). Area, 162.7 sq.m. (1,757 sq.ft.). Weights: Empty, 3,780 kg. (8,316 lb.). Loaded, 5,030 kg. (11,066 lb.). Speed, 115-118 km.hr. (71.825-73.875 m.p.h.). At a later date mid-wing ailerons were fitted to the rear pair of wings to improve lateral control.


J.Herris German Seaplanes of WWI (A Centennial Perspective on Great War Airplanes 15)


Oertz W6 Flying Schooner
  
  The Oertz W6, known as the Flugschoner (Flying Schooner), was ordered in August 1914 but was not delivered until July 1917. The W6 was easily the most distinctive Oertz flying boat due to its tandem biplane wing design. This configuration was chosen to provide great wing area within a reasonable wing span. The W6 was powered by two 240 hp Maybach Mb.IV engines mounted in the hull driving the pusher propellers via shafts with bevel gears as in previous Oertz designs. Originally, ailerons were mounted only on the forward upper wing. These proved inadequate and an additional pair of ailerons was fitted between the aft pair of wings.
  Other than its tandem wings, the W6 closely followed the configuration of earlier Oertz flying boats. The hull was broad-beamed, the engines were hull-mounted driving pusher propellers, and the tail surfaces were carried high above the hull. Originally wing-tip floats were not used, but these were added based on flight experience.
  The W6 was significantly larger than earlier Oertz flying boats and carried a crew of three. Only one aircraft, Marine Number 281, was ordered and built.


Oertz W6 Specifications
Engine: 2x240 hp Maybach Mb.IV
Wing: Span 20.00 m
Area 162.7 m2
General: Length 14.58 m
Empty Weight 3,780 kg
Loaded Weight 5,030 kg


Журнал Flight


Flight, October 9, 1919.

THE OERTZ FLYING BOATS

<...>
   "Already at the outbreak of war, Mr. Oertz was considering the design of large flying boats. In order to reduce the overall span of large machines, which may, under certain conditions, be a great disadvantage at sea, he evolved the, in itself, quite novel idea of constructing a tandem machine. [This is incorrect. The tandem machine had already been considered, and, in fact, several had been built, although they could hardly be said to be very successful. - ED., FLIGHT.] After model tests by Professor Prandel at the Gottingen Laboratory, the construction shown in Figs. 7 to 10 was decided upon, and the boat was finished in 1916. It was given the official, and more seamanlike, title of 'The Flying Schooner.' The 'Flying Schooner' had two 240 h.p. Maybach engines, placed side by side, and attained a speed of about 71 m.p.h., which was better than the speed predicted by Gottingen. The 'Flying Schooner' was especially good for starting and alighting. In order to enable it to make shorter turns, inter-plane ailerons were fitted between the rear planes. These have not yet been fitted in the photograph, Fig. 8, but may be seen in Figs. 9 and 10.
   "The appearance of the large fast American Curtiss flying boats in the War gave the impetus for us also to start construction of large boats to a considerable extent. In connection with the Brandenburg Aircraft Works, the construction of two large flying boats with two 300 h.p. engines was commenced. The hulls of these boats were already finished when the Armistice came, but the work on the complete boats was then stopped. May it be resumed again for the benefit of peaceful development."

J.Herris - German Seaplanes of WWI /Centennial Perspective/ (15)
Oertz W6 Flugschoner
J.Herris - German Seaplanes of WWI /Centennial Perspective/ (15)
Oertz W6 Marine Number 281, with its tandem biplane design, in original configuration. It was the most distinctive Oertz flying boat. Known as the Flugschoner (Flying Schooner), it was powered by two 240 hp Maybach Mb.IV engines.
J.Herris - Weird Wings of WWI /Centennial Perspective/ (70)
Oertz W6 Marine Number 281 in original configuration before the between-the-wings ailerons were fitted between the rear pair of wings and before wing-tip floats were added. Unsurprisingly, only one prototype was built.
O.Thetford, P.Gray - German Aircraft of the First World War /Putnam/
Oertz W 6 Flugschoner
Журнал - Flight за 1919 г.
Fig. 9. - The Oertz "Flying Schooner" taxying
J.Herris - German Seaplanes of WWI /Centennial Perspective/ (15)
Oertz W6 Marine Number 281, with its tandem biplane design, was the most distinctive Oertz flying boat. Known as the Flugschoner (Flying Schooner), it was powered by two 240 hp Maybach Mb.IV engines. The below photo shows it after auxiliary ailerons were added between the rear pair of wings.
J.Herris - German Seaplanes of WWI /Centennial Perspective/ (15)
Oertz W6 Marine Number 281, in its final configuration after auxiliary ailerons were added between the rear pair of wings and wing-tip floats were installed under the forward lower wing.
The Oertz W6 Flying Schooner flying boat in flight. It was a tandem biplane; that is, it had a biplane wing forward and another aft. The photo shows the W6 after between-the-wings ailerons were fitted to improve controlability.
Журнал - Flight за 1919 г.
Fig. 10. - The Oertz "Flying Schooner" in the air. This is a unique flying shot from down under giving a good look on the construction of the large hull and the unique tandem wings.
Журнал - Flight за 1919 г.
Fig. 8. - Three-quarter rear view of 1916 Oertz tandem biplane, known as the "Flying Schooner."
J.Herris - German Seaplanes of WWI /Centennial Perspective/ (15)
Oertz W6 SVK Drawing
J.Herris - German Seaplanes of WWI /Centennial Perspective/ (15)
Oertz W6 Hull SVK Drawing