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Pfalz D.XIV

Страна: Германия

Год: 1918

Fighter

Pfalz - D.XII - 1918 - Германия<– –>Pfalz - D.XV - 1918 - Германия


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


Pfalz D XIV
  This experimental machine was basically a slightly enlarged D XII with high compression 200 h.p. Benz Bz IV u. motor. It could be distinguished visually from the D XII by the larger vertical fin. Engine, 200 h.p. Benz Bz IV u. Span, 10.0 m. (32 ft. 9 3/4 in.). Length, 6.32 m. (20 ft. 8 3/4 in.). Height, 2.7 m. (8 ft. 10 1/4 in.). Area, 25.43 sq.m. (275 sq.ft.). Weights: Empty, 833 kg. (1,833 lb.). Loaded, 1,032 kg. (2,270 lb.). Speed, 180 km.hr. (112.5 m.p.h.) at 4,000 m. (13,120 ft.). Climb, 1,000 m. (3,280 ft.) in 3 min. 5,000 m. (16,400 ft.) in 26.1 min. Duration, 1 1/2 hr. Armament, twin Spandau machine-guns.


W.Green, G.Swanborough The Complete Book of Fighters


PFALZ D XIV Germany

  The D XIV, which underwent Typen-Prufung on 15 May 1918, was very similar to its immediate predecessor, but featured wings of greater span and area, a deeper fuselage, an enlarged vertical fin and a high-compression Benz Bz IVu six-cylinder water-cooled engine. Structurally similar to preceding Pfalz fighters and carrying the standard twin-gun armament, the D XIV participated in the second D-type Competition, but did not demonstrate any appreciable advance over the D XII, development being discontinued.

Max speed, 112 mph (180 km/h) at 13,125 ft (4 000 m).
Time to 3,280 ft (1000 m), 3.0 min.
Endurance, 1.5 hrs.
Empty weight, 1,836 lb (833 kg).
Loaded weight, 2,275 lb (1032 kg).
Span, 32 ft 9 2/3 in (10,00 m).
Length, 20 ft 8 4/5 in (6,32 m).
Height, 8 ft 10 1/4 in (2,70 m).
Wing area, 273.73 sq ft (25,43 m2).


J.Herris Pfalz Aircraft of WWI (A Centennial Perspective on Great War Airplanes 5)


Pfalz D.XIII & D.XIV

  The Pfalz D.XIII is not positively identified, but may have been a single-bay version of the D.XIV analogous to the D.VII being a single-bay version of the D.VIII. The Pfalz D.XIV was essentially a D.XII fitted with the heavier, more powerful 200 hp Benz Bz.IVu engine. To support the heavier engine the wing area was increased by extending the span a meter longer than the D.XII; the construction and airfoil section were the same.
  The Pfalz D.XIV was ordered into production alongside the D.XII, but flight tests revealed only a slight performance increase. The D.XIV's loaded weight of 1,032 kg was substantially more than the D.XII's loaded weight of 892 kg due to its heavier engine and wing, and this increase of nearly 16% negated much of the effect of the increased power. Larger ailerons were fitted to maintain roll rate, which otherwise would have been reduced somewhat by the longer wing span. The D.XIV was also afflicted by the same cooling problems that delayed production of the D.XII. Because the D.XIV offered such a small performance increase and its Benz Bz.IV engine was also needed for the important LVG C.VI and Halberstadt C.V two-seaters already in production, Pfalz D.XIV production was terminated after a few machines were built, and it apparently did not see active service.

Pfalz D.XIV Specifications
Engine: 200 hp Benz Bz.IVu
Wing: Span Upper 10.00 m
Span Lower 9.15 m
Chord Upper 1.40 m
Chord Lower 1.40 m
Dihedral Lower 1 deg
Gap 1.47 m
Stagger 0.38 m
Area 25.43 sq m
General: Length 6.32 m
Height 2.70 m
Loaded weight 1,032 kg
Maximum Speed: 190 kmh
Climb: 5000m 24.2 min

Pfalz D.XIV Production Orders
Order Date Quantity Serial Numbers
April 1918 50 2800-2849/18

J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
Pfalz D.XIV 2800/18, when photographed at Adlershof in July 1918, also had the basic Pfalz color scheme of silbergrau fuselage, tailplane and elevators, with a white rudder. The wings, however, were covered in five-color printed fabric as had become standard on the D.VIII and D.XII by this time.
J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
Pfalz D.XIV under test; more power required a larger rudder and fin.
The D XIV was a participant in the second D-type Competition, but was not ordered in quantity.
J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
View of Pfalz D.XIV 2800/18 at Adlershof during the Typenprufung in July 1918. The D.XIV used the same basic structure as the D.XII, including the same fuselage and horizontal tail.The wings used the same ribs but the span was increased by one meter to give additional wing area to support the extra engine weight. The ailerons were enlarged to maintain roll rate with the longer wing span, and the vertical fin and rudder were enlarged to compensate for the increased engine power. The bump under the engine was necessary to provide room for the larger oil sump of the 200 hp Benz Bz.IV engine. A small gravity tank is mounted on the top wing just left of center. The aircraft wore standard Pfalz factory colors and markings for the time, including Pfalz silver-gray fuselage and fixed tail surfaces, white rudder, and five-color lozenge fabric on wings and elevators.
Performance was little better than the D.XII due to the increased weight and, despite a production batch of 50 being ordered, production was terminated after a few machines were built so the engine could be used for the desperately needed LVG C.VI and Halberstadt C.V that were already in production.
J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
Pfalz D.XIV at the Pfalz factory. The pilot obscures the bulge for the engine sump, but the shape of the vertical fin and the engine identifies this aircraft as a Pfalz D.XIV instead of a D.XII.
J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
Pfalz D.XIV 2800/18 at Adlershof during the Typenprufung in July 1918. The small gravity tank mounted on the top wing just left of center is clearly visible.
J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
A factory photograph taken after mid-March 1918 (see Balkenkreuz on aircraft in the background) of an unidentified Pfalz fighter prototype powered by a 160 hp Mercedes D.III engine and armed with twin Spandau LMG 08/15 machine guns. The fuselage and control surfaces resemble those of the D.XII prototype but with single-bay wings. Ear radiators are fitted to ths prototype. Was this the Pfalz D.XI or D.XIII?
J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
Pfalz D.XIV
J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
Pfalz D.XIV
J.Herris - Pfalz Aircraft of WWI /Centennial Perspective/
Pfalz D.XIV