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The Austro-Daimler 6 was a series of Austrian six-cylinder water-cooled inline SOHC aero engines first produced in 1910 by the Austro-Daimler company.

Austro-Daimler
A 147 kW (197 hp) Austro-Daimler fitted to an Aviatik (Berg) D.I, on display at the Vienna Technical Museum
Type	6-cyl. water-cooled in-line piston engine
National origin	Austria
Manufacturer	Austro-Daimler
First run	1910

Design and development

The first Austro-Daimler six-cylinder engine was designed by Dr-Ing Ferdinand Porsche to be an aircraft engine from the outset. Of high quality manufacture, the Austro-Daimler was modestly rated at relatively low rpm, which gave the engine family a reputation for robustness and reliability.[1]

Features of the Austro-Daimler included welded steel water jackets (originally copper), seven main bearings and large diameter inclined inlet and exhaust valves opened by dual action push-pull rods and closed by spring pressure.[1] The single-overhead cam valvetrain was driven from the crankshaft through the usual vertically-oriented shaft as the contemporary Mercedes D.III was, but the Austro-Daimler had its vertical camshaft drive system mounted at the front of the engine instead, and not the usual aft-end placement of other Central Powers straight-six "SOHC" liquid-cooled aircraft powerplants, like the Mercedes and BMW designs.

The Austro-Daimler inspired many imitators such as the Mercedes D.II, Benz Bz.IV, Beardmore, and Hiero 6. Modest availability of the Austro-Daimler engines forced some aircraft manufacturers to substitute Mercedes (the German Daimler company) engines in their aircraft, due to greater availability.[1]

Variants

Data from:[1]

Austro-Daimler 90 hp 6-cyl.

The original low capacity version developing 90 hp (67.11 kW), introduced in 1910.

Austro-Daimler 120 hp 6-cyl.

Up-rated with a capacity of 13.9 L (848.23 cu in), from 130 mm (5.12 in) bore and 175 mm (6.89 in) stroke, developing 120 hp (89.48 kW) at 1,200 rpm, introduced in 1911.

Austro-Daimler 160 hp 6-cyl.

developing 160 hp (119.31 kW), introduced in 1913.

Austro-Daimler 185 hp 6-cyl.

developing 185 hp (137.95 kW), introduced in 1916.

Austro-Daimler 200 hp 6-cyl.

Up-rated with a capacity of 15.03 L (917.19 cu in), from 135 mm (5.31 in) bore and 175 mm (6.89 in), developing 200 hp (149.14 kW) at 1,350 rpm, introduced in December 1916.[2]

Austro-Daimler 210 hp 6-cyl.

210 hp (156.60 kW), introduced in late 1917.

Austro-Daimler 225 hp 6-cyl.

developing 225 hp (167.78 kW), introduced in 1918.

Applications

• Albatros D.II (Oef) (Austro-Daimler 185 hp 6-cyl.)
• Albatros D.III (Oef) (Austro-Daimler 200 hp 6-cyl.)
• Aviatik B.I
• Aviatik B.II
• Aviatik D.I
• Etrich VII[3]
• Hansa-Brandenburg C.I
• Hansa-Brandenburg D.I
• Lohner C.I
• Lohner Type AA (Austro-Daimler 185 hp 6-cyl.)

Specifications (Austro-Daimler 120 hp)

General characteristics

• Type: 6-cylinder liquid-cooled inline engine
• Bore: 130 mm (5.12 in)
• Stroke: 175 mm (6.89 in)
• Displacement: 13.9 L (850.5 cu in)
• Length: 1,690 mm (66.5 in)
• Width: 520 mm (20.47 in)
• Height: 1,040 mm (41 in)
• Dry weight: 320 kg (705 lb)

Components

• Fuel system: Carburetor

Performance

• Power output: 120 hp at 1,200 RPM

See also

Comparable engines

• BMW IIIa
• Hiero 6
• Liberty L-6
• Mercedes D.III
• SPA 6A

Related lists

• List of aircraft engines

Footnotes

References

• Jane, Fred T., ed. (1969) [1913]. "Aeroplanes & Dirigibles: Austro-Hungarian". Jane's All the World's Aircraft (html). Vol. 1913. New York, NY: Arco Publishing Company Inc. LCCN 69-14964. Retrieved Aug 17, 2018.

• Gunston, Bill (2006). World Encyclopedia of Aero Engines: From the Pioneers to the Present Day (5th ed.). Stroud, UK: Sutton Publishing. p. 18. ISBN 9780750944793. LCCN 2008383222.

• Angelucci, Enzo (1980). The Rand McNally Encyclopedia of Military Aircraft 1914–1980. p. 102. {{cite encyclopedia}}: Missing or empty |title= (help)

• Grey, C. G. (1969) [1919]. Jane's All the World's Aircraft 1919. David & Charles Publishing Ltd. pp. 1b–145b. ISBN 0-7153-4647-4.

На других языках

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[de] Austro-Daimler 6

Der Austro-Daimler 6 – auch bekannt als Austro-Daimler Aeroplanmotor Typ 6 oder Austro-Daimler Typ 6 bzw. kurz AD6 – war ein stehender flüssigkeitsgekühlter Reihen-Sechszylinder-Flugmotor, der ab 1910 von Austro-Daimler im damaligen Österreich-Ungarn hergestellt wurde. Dieser wurde von Ferdinand Porsche von Anbeginn als Flugmotor konstruiert und kam auch in weiterentwickelter Form im Ersten Weltkrieg zum Einsatz, wobei er aufgrund seiner Qualitäten diversen ähnlichen späteren Triebwerken aus dem Deutschen Reich, Österreich-Ungarn selbst und sogar Großbritannien als Vorbild diente. Ab 1917 ersetzte der Typ 6 wegen der höheren Leistung, der Qualität sowie der höheren Verfügbarkeit bei diversen Flugzeugen der k.u.k. Luftfahrtruppen die originalen Mercedes-Motoren während der Produktion sowie vereinzelt auch nachträglich auf dem Feld. Die Produktion dieser Motoren endete nach dem Ersten Weltkrieg, danach erfolgte noch eine begrenzte zivile Verwendung für einige Jahre.

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- [en] Austro-Daimler 6

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