D Series @·AIRCRAFTUBE

  • Aviatik D I Aviatik D I
    Aviatik D I
  • Aviatik D II Aviatik D II
    Aviatik D II
  • Aviatik (Berg) D I - 1917 Aviatik (Berg) D I - 1917
    Aviatik (Berg) D I - 1917
  • Aviatik D VI<br>195hp geared<br>Benz engine<br>(1918) Aviatik D VI<br>195hp geared<br>Benz engine<br>(1918)
    Aviatik D VI
    195hp geared
    Benz engine
    (1918)
  • Aviatik D I - Seattle Museum of Flight Aviatik D I - Seattle Museum of Flight
    Aviatik D I - Seattle Museum of Flight
  • Aviatik D III Aviatik D III
    Aviatik D III
  • Aviatik D I Aviatik D I
    Aviatik D I
  • Aviatik D VII - 1918 Aviatik D VII - 1918
    Aviatik D VII - 1918
  • Aviatik D I 30-27 Aviatik D I 30-27
    Aviatik D I 30-27
  • Aviatik D.I - Austro-Hungarian Ace<br>Frank Linke-Crawford (27 victories) Aviatik D.I - Austro-Hungarian Ace<br>Frank Linke-Crawford (27 victories)
    Aviatik D.I - Austro-Hungarian Ace
    Frank Linke-Crawford (27 victories)
  • Aviatik (Berg) D.I Aviatik (Berg) D.I
    Aviatik (Berg) D.I
  • Aviatik D I Aviatik D I
    Aviatik D I
  • Aviatik D VII Aviatik D VII
    Aviatik D VII
  • Aviatik D I - 38-06 Aviatik D I - 38-06
    Aviatik D I - 38-06
  • Aviatik D I - Fliegerkompanie 56J - 1917 Aviatik D I - Fliegerkompanie 56J - 1917
    Aviatik D I - Fliegerkompanie 56J - 1917
  • Aviatik D I Aviatik D I
    Aviatik D I
  • Aviatik D II<br>1916 Aviatik D II<br>1916
    Aviatik D II
    1916
  • Aviatik D I<br>Hungarian<br>pilot<br>Karl Turek Aviatik D I<br>Hungarian<br>pilot<br>Karl Turek
    Aviatik D I
    Hungarian
    pilot
    Karl Turek
  • Aviatik D III Aviatik D III
    Aviatik D III
  • Aviatik D II Aviatik D II
    Aviatik D II
  • Aviatik D I 30-27 Aviatik D I 30-27
    Aviatik D I 30-27
  • Aviatik D II Aviatik D II
    Aviatik D II
  • Aviatik D I - (Karl Sabeditsch) Aviatik D I - (Karl Sabeditsch)
    Aviatik D I - (Karl Sabeditsch)
  • Aviatik D VI Aviatik D VI
    Aviatik D VI
  • Aviatik D VII Aviatik D VII
    Aviatik D VII

Aviatik D Series

Aviatik D I

The Aviatik (Berg) D.I, was a single-engine, single-seater fighter biplane. It was also known as Berg D.I or the Berg Fighter because it was designed by Dipl. Ing. Julius von Berg, and to distinguish it from the D.I fighter built by the parent Aviatik firm in Germany. The D.I was the first locally designed fighter aircraft of the Austro-Hungarian Air Service (Luftfahrtruppen).

Development

Work on the prototype began in August 1916, while the first flight of the prototype, marked 30.14, took place at 16 October 1916 at Aspern, unfortunately killing Ferdinand Konschel, the test pilot.

Further modifications were made, and three more prototypes were manufactured, labeled 30.19 (for tests on the ground), 30.20 (for tests in flight) and 30.21 (as a reserve airframe). These prototypes differed from the production aircraft in having a single unsynchronized Schwarzlose machine gun above the top wing, firing over the propeller.

Tests of the modified aircraft were good and the first unit to receive production examples (with two synchronized Schwarzloses, on each side of the cylinders) of the Aviatik D.I was Fluggeschwader I (FLG I, later to be renamed to Flik 101G) on the Divača airfield.

Production

The Aviatik (Berg) D.I was manufactured under license by a number of subcontractors.

  • Austrian Aviatik manufactured the 38, 138, 238 and 338 Series.
  • Lohner manufactured the 115 and 315 Series.
  • Lloyd manufactured the 48, 248 and 348 Series.
  • MAG (Magyar Általános Gépgyár - General Hungarian Machine Works) manufactured the 84 and 92 Series.
  • Thöne und Fiala manufactured the 101 Series.
  • Wiener Karosserie Fabrik (WKF) (Vienna Coachwork Factory) manufactured the 184, 284 and 384 Series.

Ordered but not built were the 215 and 201 Series from Lohner and Thöne und Fiala respectively.

The main differences between the different series were in the power of Austro-Daimler engines used (185 hp in the early production aircraft, 200 or 210 hp in the mid-production, and 225 hp in the last ones), in positioning of the machine guns, and in structural and radiator details.

By the 31st October 1918, 677 Aviatik (Berg) D.I airframes of all batches had been handed over to the Austro-Hungarian Air Force.

Operational service

In many respects, the D.I was a good combat aircraft. It was reasonably fast, had excellent flying characteristics and maneuverability, and could reach higher altitudes than most of its adversaries. In addition, it was provided with a roomy and comfortable cockpit which gave a good field of view.

Despite those desirable features, the new Aviatik fighter wasn't greeted with enthusiasm when it entered service in autumn 1917, as the type also had some serious defects which didn't endear it to its pilots. The early aircraft had structural deficiencies and their machine guns were installed beyond the reach of the pilot so that when they jammed, there was nothing the pilot could do about it. These problems were later rectified with the strengthening of the airframe and the repositioning of the guns. While the original Aviatik D-I design by Julius von Berg was sound, the Series 115 aircraft license-produced by the Lohner firm at Wien-Floridsdorf were notorious for failures along the wing trailing edges in high speed maneuvers, as Lohner had deviated from Aviatik specifications by employing thinner, lighter wing ribs. The main cause of complaints was the engine's tendency to overheat far too easily. To alleviate these cooling problems, operational units tended to fly their aircraft without the engine's top panels and sometimes the side panels were also left off.

The Austro-Hungarian aviation units used the D.I widely until the end of World War I on Eastern, Italian and Balkan fronts, mainly as an escort for reconnaissance aircraft, as most of the fighter units preferred the Albatros D.III for air superiority.

Variants

The Dr.I triplane prototype used a D.I biplane fuselage and a 200 hp Austro-Daimler engine. This aircraft remained as prototype only.

Aviatik D.II

The Aviatik (Berg) D.II, the prototypes of which were known as Aviatik 30.22 and Aviatik 30.38, was an Austro-Hungarian fighter prototype towards the end of the First World War.

Development

The D.II's fuselage was virtually identical to that of the D.I. It was characterised, however, by its short-span cantilever lower wing. Through 1917, 19 D.IIs were built for front-line evaluation. The series 39 aircraft were powered by the 149.14 kW (200 hp) Austro-Daimler 200hp engine and the series 339 aircraft by the 167.78 kW (225 hp) Austro-Daimler 225 hp engine driving a four-bladed Jaray propeller and armed with the usual paired 8 mm (0.315 in) Schwarzlose machine guns. A further prototype, (30.38), was produced by fitting a 149.14 kW (200 hp) Hiero engine in a D.II airframe.

Operational history

The first three production aircraft were tested in November 1917, and seven were evaluated at the front later in that year, showing good promise. However, the decision was made that Aviatik should instead produce the Fokker D.VII, and any plans to continue production of the D.II were halted.

Operators

  • Austria-Hungary : Austro-Hungarian Imperial and Royal Aviation Troops.
  • Kingdom of Yugoslavia : Yugoslav Royal Air Force (Postwar).

Aviatik D.III

The Aviatik D.III was a German prototype single-seater fighter plane that became the basis for the Aviatik D.IV and Aviatik D.V. In November 1917, the plane was first flown, using a 195 hp Benz Bz IIIbo gearless engine. It was of similar design to the Aviatik D.II, and was armed with two LMG 08/15 machine guns. After several tests at Adlershof from February 9–12, 1918, the plane underwent modifications, as requested by the Idflieg. In April, a second prototype, powered by a Benz Bz IIIbm, although several D.III powered by the original IIIbo engine were already under production; however, none of them were ever completed.

Aviatik D.IV

In 1918, Automobil und Aviatik AG led multiple concurrent biplane fighter programs based on the D.III. The D.IV differed from the previous by a new rudder, a doubling of masts entreplans and its engine, a Benz Bz IIIbv. The teething problems of this engine that was other than a Bz IIIbm with reduction gear delayed the program and it does not appear that the prototype ever flew.

Aviatik D.V

A D.IV variant of which the guying was removed. The prototype seems not to have flown more than the D.IV, for the same reasons.

Aviatik D.VII

Built to participate in the Third D-Type Contest of October 1918, it saw no military service. The only real major change from the D.VI was a completely new horizontal and vertical tail design.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Aviatik (Berg) D.I of Wikipedia ( authors )

Specifications (D.II series 39 / series 339)

  • Crew : 1.
  • Length :
    • 6.98 m (22 ft 11 in) (39).
    • 7.1 m (23.29 ft) (339).
  • Height :
    • 2.45 m (8 ft) (39).
    • 8 m (26.25 ft) (339).
  • Upper wingspan :
    • 7.5 m (24 ft 7 in) (39).
    • 8 m (26.25 ft) (339).
  • Lower wingspan : 5.2 m (17 ft 1 in).
  • Wing area :
    • 19.5 m² (210 sq ft) (39).
    • 2.6 m² (28 sq ft) (339).
  • Empty weight : 668 kg (1,473 lb) (339).
  • Gross weight :
    • 845 kg (1,863 lb) (39).
    • 947 kg (2,087.8 lb) (339).
  • Maximum speed : 217 km/h (135 mph; 117 kts).
  • Time to 4,000 m (13,100 ft):
    • 39 : in 18 min 7 sec.
    • 339 : 16 min 54 sec.
  • Powerplant (series 39):
    • One Austro-Daimler 200hp 6-cyl. water-cooled in-line piston engine.
    • Power : 150 kW (200 hp) (39).
  • Powerplant (series 339):
    • One Austro-Daimler 225hp.
    • Power : 167.78 kW (225 hp).
  • Propellers : 4-bladed Jaray propeller.
  • Armament : Two 8 mm (0.315 in) Schwarzlose machine guns.

Specifications (D.III)

  • Crew : 1.
  • Length : 8.47 m (27 ft 9 in).
  • Height : 3.08 m (10 ft 1 in).
  • Wingspan : 9 m (29 ft 6 in).
  • Wing area : 21 m² (230 sq ft).
  • Gross weight : 864 kg (1,905 lb).
  • Range : 720 km (447 mi; 389 nmi).
  • Rate of climb : 0.11 m/s (22 ft/min).
  • Powerplant : One Benz Bz IIIbo 8-cylinder liquid-cooled V engine.
  • Power : 145 kW (195 hp).
  • Armament : Two LMG 08/15.

— — — = = — — —

This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Aviatik D.III of Wikipedia ( authors )
Aviatik D Series : Your comments on this subject
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