Austro-Daimler 6
| Austro-Daimler | |
|---|---|
| |
| A 1912 Austro-Daimler 6 on display at thePorsche Museum | |
| Type | 6-cyl. water-cooled in-line piston engine |
| National origin | Austria |
| Manufacturer | Austro-Daimler |
| First run | 1910 |
| Variants | Beardmore 120 hp |
TheAustro-Daimler 6was a series ofAustriansix-cylinderwater-cooledinlineaero enginesfirst produced in 1910 by theAustro-Daimlercompany.
Design and development
[edit]The first Austro-Daimler six-cylinder engine was designed byDr-Ing Ferdinand Porscheto 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]
Thesingle-overhead cam(SOHC) valvetrain of later engines was driven from the crankshaft through the usual vertically-oriented shaft as the contemporaryMercedes D.IIIwas, 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 theMercedes D.II,Benz Bz.IVandHiero 6.Limited 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]From 1913, the 90 and 120 hp models were produced under license in Scotland byWilliam Beardmore and Company.TheBeardmore 120 hpwent on to power many British military aircraft duringWW1.[2]
Variants
[edit]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.[3]
- 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
[edit]- 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[4]
- Hansa-Brandenburg C.I
- Hansa-Brandenburg D.I
- Lohner C.I
- Lohner Type AA(Austro-Daimler 185 hp 6-cyl.)
Specifications (Austro-Daimler 200 hp)
[edit]
Data from[5]
General characteristics
- Type:6-cylinder liquid-cooled inline engine
- Bore:135 mm (5.31 in)
- Stroke:175 mm (6.89 in)
- Displacement:15.0 L (915.48 cu in)
- Length:1,724 mm (67.875 in)
- Width:568 mm (22.375 in)
- Height:1,149 mm (45.25 in)
- Dry weight:330.4 kg (728.5 lb)
Components
- Fuel system:One duplex Austro-Daimler carburetor
Performance
- Power output:149 kW (200 hp) at 1,400 rpm (rated). 166 kW (222 hp) at 1,600 rpm (maximum).
- Compression ratio:5.02:1
- Specific fuel consumption:0.304 kg/kWh (0.499 lb/(hp⋅h))
See also
[edit]Comparable engines
Related lists
Footnotes
[edit]- ^abcdGunston 2006
- ^Lumsden, Alec (2002).British Piston Engines and their Aircraft.Airlife Publishing. pp. 80–81.ISBN1853102946.
- ^Grey 1969
- ^Jane 1969,p. 18
- ^Angle, Glenn D. (1921).Airplane Engine Encyclopedia.Dayton, Ohio: The Otterbein Press. pp. 64–67.
References
[edit]
- 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.LCCN69-14964.RetrievedAug 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.ISBN9780750944793.LCCN2008383222.
- Angelucci, Enzo (1980).The Rand McNally Encyclopedia of Military Aircraft 1914–1980.p. 102.
- Grey, C. G. (1969) [1919].Jane's All the World's Aircraft 1919.David & Charles Publishing Ltd. pp. 1b–145b.ISBN0-7153-4647-4.