DFW Pfeil Doppeldecker

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DFW - flying boat - 1913 - Германия DFW - Taube - 1913 - Германия

Страна: Германия

Год: 1913

J.Herris DFW Aircraft of WWI (A Centennial Perspective on Great War Airplanes 29)

DFW Pfeil Doppeldecker

   The DFW Pfeil Doppeldecker (Arrow Biplane) followed the earlier DFW Mars biplanes with banana-shaped wing planform. The aircraft was smaller, lighter, and more streamlined than the Mars biplane for improved performance and agility.
   Its compact design included a single bay of struts, greatly reducing drag compared to the three-and-a-half-bay Mars biplane. The engine was a 100 hp Daimler. The distinctive wing planform was not continued in future designs.

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P.Grosz, G.Haddow, P.Shiemer Austro-Hungarian Army Aircraft of World War One (Flying Machines)

Lloyd 40.01

  On its first public appearance at the Third International Flugmeeting at Aspern, director Bier brilliantly piloted the Lloyd LS 1 biplane (competition number 20) to four world altitude records. On 27 June 1914, Bier reached an altitude of 6170 meters (20,244 ft) with one passenger and on 28 June, 5440 meters (17,849 ft) with two passengers. Bier's flying skills earned him third prize overall behind Edmund Sparmann flying for Lohner and Roland Garros for Nieuport. The record-breaking Lloyd LS 1 biplane was powered by a 145 hp Hiero engine. Praised as the best in-line engine at the Flugmeeting, it was designed by Otto Hieronimus who soon became famous for his wartime engines.
  Although identified as a Lloyd product, sufficient evidence exists to demonstrate that the LS 1 was built by DFW in Leipzig. In light of the fact that Lloyd took seven months to deliver the first production aircraft, it is unlikely that the fledgling company was capable of building and fine-tuning a record-breaking competition aircraft between the opening of the factory (8 May 1914) and the first day of the Flugmeeting (21 June 1914). The LS 1 biplane (Lloyd Stahlrumpf - steel fuselage) had the characteristic DFW welded steel-tube fuselage, whereas every Lloyd fuselage was built of wood. A similar biplane photographed at the DFW factory further supports the contention that the LS 1 was built in Leipzig.
  The Lloyd LS 1 (less engine) was purchased by the LA in September 1914. A new 145 hp Hiero engine was installed and the ventral radiator replaced by one mounted above the engine. From January to August 1915, the LS 1 was flown by Flik 6 at Igalo on the Montenegro Front. In military records the LS 1 was designated Lloyd 20M (M for meeting) before receiving the prototype designation 40.01 in February 1915. In late 1915, the LS 1 was purchased as surplus by Lloyd for display at the Budapest Military Aircraft Exhibition in 1917. Miraculously, the LS 1 survived the Great War, the post-war strife, and the battle for Budapest in 1944. Restored, it can now be seen at the Transportation Museum in Budapest.

Lloyd 40.01 Specifications
Engine: 145 hp Hiero
Wing: Span Upper 14.00 m (45.93 ft)
Sweepback Upper 8 deg
Sweepback Lower 8 deg
Stagger 0.60 m (1.97 ft)
Total Wing Area 44 sq m (474 sq ft)
General: Length 9.00 m (29.53 ft)
Height 3.00 m (9.84 ft)
Empty Weight 700 kg (1544 lb)
Loaded Weight 1100 kg (2426 lb)
Maximum Speed: 130 km/hr (81 mph)

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J.Herris DFW Aircraft of WWI (A Centennial Perspective on Great War Airplanes 29)
P.Grosz, G.Haddow, P.Shiemer Austro-Hungarian Army Aircraft of World War One (Flying Machines)

J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

A DFW Arrow biplane provides a backdrop for this early photograph.
Herr Max Schuler (centre), who established a world's distance record with two passengers (seen in the photograph) by flying from Leipzig to Breslau - a distance of 205 miles - where he competed in the East German Race on his 150 h.p. D.F.W. scouting biplane. It was on the same machine, it will be remembered, that Herr Schuler won the German "Triangular" Race a short time ago.
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

A DFW Renn Pfeil Doppeldecker (arrow biplane) seen from the rear. (Peter M. Grosz Collection/SDTB)
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

A DFW Pfeil Doppeldecker (arrow biplane) at a pre-war flight competition; the competition number is "24". (Peter M. Grosz Collection/SDTB)
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

A DFW Pfeil Doppeldecker with early national insignia on a white background under the wing. This is indicative of the photo being taken during the war. (Peter M. Grosz Collection/SDTB)
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

A DFW Pfeil Doppeldecker (arrow biplane) with pre-war registration under the lower wing.
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

A DFW Pfeil Doppeldecker (arrow biplane) ready for flight. (Peter M. Grosz Collection/SDTB)
By 1914 the DFW company was producing elegant biplanes like this small two-seater. A production licence was agreed with Beardmore in the UK, but the war brought the scheme to an end.
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

This DFW biplane appears to be the same type as that shown in the beginning of the section on page 9. The wings have a straight leading edge in contrast to the swept-back wings of the DFW Pfeil Doppeldecker although they retain the single-bay bracing. The engine appears to be a 100 hp Daimler.
A "D.F.W." scouting biplane, which is credited with a maximum speed of 106 to 110 miles per hour, and a minimum speed of 51 miles per hour. She will climb to an altitude of 3,500 ft. in about 6 mins.
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

Early DFW biplane at right with a Taube at left ready for another sortie early in the fighting. (Peter M. Grosz Collection/SDTB)

Другие самолёты на фотографии: DFW Taube - Германия - 1913
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

A DFW Pfeil Doppeldecker with crew aboard. (Peter M. Grosz Collection/SDTB)
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

The DFW speed scout of 1914 was a single-seat, single-bay biplane with streamlined interplane and undercarriage struts designed for racing. The wings were shorter span than other DFWs and the tail resembled the DFW B.I. The engine was a 150 hp Benz Bz.III. This aircraft won the "Berliner Dreiecksflug 1914" competition. (Peter M. Bowers Collection/Museum of Flight)
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

This DFW biplane appears to be a two-bay derivative of the biplane. The caption written on the photo indicates it was designed for the military and has a 150 hp engine. (Peter M. Grosz Collection/SDTB)
Журнал - Flight за 1914 г.

Two views of the 150 h.p. D.F.W. fast reconnaissance type biplane. Inset, the same machine in flight.
J.Herris - DFW Aircraft of WWI /Centennial Perspective/ (29)

A DFW Arrow biplane with low-drag radiator under the wing. It is not known how many of these aircraft were built before the war.
P.Grosz, G.Haddow, P.Shiemer - Austro-Hungarian Army Aircraft of World War One /Flying Machines/

The DFW “racing military biplane" shown here at the DFW factory is possibly the aircraft that participated in the Third International Flugmeeting as the Lloyd LS 1. For the competition a 145 hp Hiero engine and spinner were installed, possibly at Aszod by DFW workmen.

Другие самолёты на фотографии: Lloyd C.I - Австро-Венгрия - 1914

Фотографии