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Phonix 20.14 / 20.16

Страна: Австро-Венгрия

Год: 1916

Fighter

Phonix - 20.10 - 1916 - Австро-Венгрия<– –>Phonix - D-I/D-II/D-III - 1917 - Австро-Венгрия


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


PHONIX 20.14 Austria-Hungary

  Shortly after commencing licence manufacture of the Brandenburg D I, the Phonix-Flugzeugwerke initiated work on an "improved fighter with a Nieuport (ie, sesquiplane] cellule” under the design leadership of Dipl-Ing Kirste. The prototype, completed early in December 1916, utilised the fuselage of Brandenburg D I 28.48 (48th 28-Series fighter) to which was applied a deepened forward portion eliminating the centre-section cabane of bracing struts. This was mated with an enlarged-area upper wing and shorter-span narrow-chord lower wing to provide the desired sesquiplane cellule. Crashed during flight testing on 16 January 1917, the prototype was rebuilt, redesignated 20.14 (ie, 14th experimental aircraft produced by Phonix), and fitted with modified ailerons and a new, lengthened fuselage. Retaining the 185 hp Austro-Daimler six-cylinder water-cooled engine, the 20.14 entered flight test in June 1917, proving to possess an inferior climb rate to the parallel 20.15. The sole 20.14 was eventually sold to the Navy and flown from Trieste.

Empty weight (approx), 1,466 lb (665 kg).
Loaded weight (approx), 2,028 lb (920 kg).
Span, 28 ft 2 3/5 in (8,60 m).
Length, 20 ft 8 in (6,30 m).
Height, 8 ft 11 1/2 in (2,73 m).
Wing area, 209.9 sq ft (19,50 m 2).


  
PHONIX 20.16 Austria-Hungary

  Destined to be Dipl-Ing Kirste’s final attempt to produce a successful single-seat fighter of sesquiplane configuration, the 20.16 mated a Brandenburg D I (ex 28.73) fuselage with a new wing cellule (as did the 20.14). The wings featured rounded tips and the upper wing, which utilised a new high-lift profile, was set lower on the fuselage to improve forward view for the pilot. The 20.16 was fitted with a 200 hp Austro-Daimler engine and was flight tested in the late spring of 1917, but, having failed to demonstrate desirable characteristics, by June of that year it was undergoing reconstruction with a Sparmann-designed biplane cellule similar to that of the 20.15. In this form it was to become the true prototype of the Phonix D I. No data are available apart from the wing span of 31 ft 6 in (9,60 m).


E.Hauke, W.Schroeder, B.Totschinger Die Flugzeuge der k.u.k. Luftfahrtruppe und Seeflieger 1914-1918


20. Flugzeuge der Phönix-Flugzeugwerke, vormals Österr. Albatros
20.14 Brandenburg KD (Flügelversuch mit ex 28.48) Dm 185
20.16 Phönix D Prototyp (Rumpf ex 28.73) Dm 200

C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
The first Austrian war-product Scout - The Brandenburg K Model and K.B. built by the Phonix Co.
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
The Phonix-built 28.48 prototype is fitted with a sesquiplane format wing cellule with a Vee strut and additional diagonal bracing struts. A standard Series 28 fuselage was modified with it filling the wing gap with the upper wing mounted atop the fuselage. The upper wing also mirrored the planform of the Nieuport (11,16, and 17) top wing. The aircraft exhibited greater speed and climb than the standard Series 28 fighter. It was damaged in a landing accident prior to undergoing formal tests and was rebuilt with a lengthened fuselage as prototype 20.14.
W.Green, G.Swanborough - The Complete Book of Fighters
The sole example of the Phonix 20.14 which was completed in December 1916.
E.Hauke, W.Schroeder, B.Totschinger - Die Flugzeuge der k.u.k. Luftfahrtruppe und Seeflieger 1914-1918
Brandenburg 20.14 (Nieuport-Zelle)
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
A rear quarter view of the 20.14 prototype showing it still had the Nieuport-style upper wing, modified lower vee-strut wing arrangement, and the diagonal bracing strut. The fuselage was lengthened following the crash of the 28.48.
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
Port side view of the 20.14 that succeeded the 28.48. A vertical fin has now been added to give the 20.14 greater directional stability than the standard Brandenburg D.I and 28.48 prototype.
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
Although the 20.14 offered better speed and climbing capability than the standard 28-series KD fighter. The 20.15 utilized the standard Series 28 fuselage with square-tipped KD wings but replaced the 'star-strutter' interplane struts with conventional struts with wire bracing. The wings were staggered and the lower wing had dihedral. The large vertical fin added to the 20.14 prototype was retained for enhanced stability. A standard VK gun canister was fitted and the engine was an Austro-Daimler with the exhausts on the starboard side. The 20.15 looked more like what will become the Phonix D.I.
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
The 20.16 prototype was a further development of the 20.14 design with sesquiplane wing cellule. The new upper wing had rounded wingtips, tapered trailing edges at the ailerons, and incorporated washout so the ailerons would not stall before the inboard section of the wings. If the ailerons stall first, the pilot loses roll control ata critical moment and the aircraft can easily enter a spin before the pilot can recover from the stall.
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
The 20.16 prototype shows its new upper wing and tailplane design. Unlike the earlier 20.14, the upper wing planform now resembles that of the lower wing. The radiator was installed in the inboard section of the port upper wing and the VK gun canister has been eliminated; synchronized guns would be used from now on. The vertical fin added to the 20.14 prototype has been retained for directional stability.
W.Green, G.Swanborough - The Complete Book of Fighters
After tests in June 1917, the Phonix 20.16 was rebuilt with an entirely new wing cellule.
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
Phonix D.I-prototyp, 20.16
Форум - Breguet's Aircraft Challenge /WWW/
The Austro-hungarian experimental Phonix 20.16 in its second version. The first version of this experimental had a sesquiplane and a completely filled fuselage to the upper wing, resulting that the pilot could see nothing straight ahead. He could look possibly over the upper wing a little bit, judging from pictures.
What we see here is the second version of the 20.16 which can be distinguished by its equal wings and the radiator on the leading edge of the top wing. There was also romm between the top wing and the fuselage to look straight ahead.
This experimental was judged ripe for production in August 1917, to become the Phonix D.I production fighter.
E.Hauke, W.Schroeder, B.Totschinger - Die Flugzeuge der k.u.k. Luftfahrtruppe und Seeflieger 1914-1918
Phönix D.I-Prototyp, 20.16
C.Owers - Hansa-Brandenburg Aircraft of WWI. Volume 3 - Monoplane Seaplanes /Centennial Perspective/ (3)
The re-designed Phonix 20.16 prototype with its revised, conventional wing cellule by Edmund Sparmann. Upper and lower wingtips were rounded. This was a stronger wing cellule that improved on the similar wing on the 20.15 prototype. Testing revealed good performance and flying qualities, and the production Phonix D.I fighter was based on this version of the 20.16. The radiator for the 200-hp Daimler was now located above the upper wing, a position that ensured adequate cooling at the expense of higher drag.
W.Green, G.Swanborough - The Complete Book of Fighters
The sole example of the Phonix 20.14 which was completed in December 1916.
W.Green, G.Swanborough - The Complete Book of Fighters
The Phonix 20.16 is illustrated here in its original sesquiplane configuration.