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The Maybach Mb IVa was a water-cooled aircraft and airship
* Friedrichshafen G.V (one built)
* Gotha G.VIII (one built)
* Gotha G.IX
* Gotha WD.8
* Hansa-Brandenburg W.29
* LFG Roland G.I
* Rumpler C.VII
* Sablatnig C.III
*
straight-six engine
A straight-six engine (also referred to as an inline-six engine; abbreviated I6 or L6) is a piston engine with six cylinders arranged in a straight line along the crankshaft. A straight-six engine has perfect primary and secondary engine balanc ...
developed in Germany during World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
by ''Maybach-Motorenbau GmbH
Maybach (, ) is a Automotive industry in Germany, German luxury car brand owned by and a part of Mercedes-Benz AG. The original company was founded in 1909 by Wilhelm Maybach and his son Karl Maybach, originally as a subsidiary of ''Luftschiffb ...
'', a subsidiary of Zeppelin
A Zeppelin is a type of rigid airship named after the German inventor Ferdinand von Zeppelin () who pioneered rigid airship development at the beginning of the 20th century. Zeppelin's notions were first formulated in 1874Eckener 1938, pp. 155� ...
. It was one of the world's first series-produced engines designed specifically for high-altitude use. It was quite different engine design than the previous Maybach Mb.IV, not just a simple modification.
Design and development
Like all engines of that time, the previous Maybach design, the Mb IV, lost as much as half of the nominal power of 240 horsepower at high altitude. The new Maybach Mb IVa of 1916 was the first engine designed to overcome this limitation. It did not use asupercharger
In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement (engine), displacement. It is a form of forced induction that is mechanically ...
, but a much more primitive solution. The engine had purposely "oversized" cylinders, and a significantly higher 6.08:1 compression ratio. It was tested on Wendelstein (mountain)
Wendelstein is a mountain in the Bavarian Alps in South Germany. It is part of the Mangfall Mountains, the eastern part of the Bavarian Pre-Alps, and is the highest peak in the Wendelstein massif. It lies between the valleys of the Leitzach and ...
at an altitude of 1800 m and rated there at 245 hp. This would theoretically correspond to rating of about 300 hp at sea level; however, the engine was not designed to withstand such power - it needed to be carefully throttled down at low altitude, so it would not exceed the safe level of 245 hp. It had three carburettor settings, to be changed during the flight depending on the altitude.
The engine was falsely given a rating of at sea level, so it would not appear inferior to the engines it replaced.
Applications
During the First World War
* Friedrichshafen G.V (one built)
* Gotha G.VIII (one built)
* Gotha G.IX
* Gotha WD.8
* Hansa-Brandenburg W.29
* LFG Roland G.I
* Rumpler C.VII
* Sablatnig C.III
* Zeppelin
A Zeppelin is a type of rigid airship named after the German inventor Ferdinand von Zeppelin () who pioneered rigid airship development at the beginning of the 20th century. Zeppelin's notions were first formulated in 1874Eckener 1938, pp. 155� ...
airships, beginning with LZ 105 up to LZ 114
* Zeppelin-Lindau Rs.III
* Zeppelin-Lindau Rs.IV
* Zeppelin-Staaken R.VI
* Zeppelin-Staaken R.XIV
* Zeppelin-Staaken R.XV
The Zeppelin-Staaken R.XV was an Imperial German bomber of World War I. An incremental improvement to the Zeppelin-Staaken R.VI, this was one of a series of large strategic bombers called ''Riesenflugzeug
A ''Riesenflugzeug'' (plural ''Ries ...
After the First World War
* Aero A.10 * Albatros L 58 * Heinkel HE 1 *FVM S 21 FVM may refer to:
* Finite volume method
* Five Mile Airport, in Alaska, United States
* Flugfélag Vestmannaeyja, a defunct Icelandic airline
* Fuvahmulah Airport, in Maldives
* Middle Rhine Football Association
The Middle Rhine Football Associati ...
* Kawanishi K-7 Transport Seaplane
* Fizir F1V-Maybach
* Sablatnig P.III
The Sablatnig P.III was an airliner produced in Germany in the early 1920s.
Development
A contemporary account identifies the P.III as Germany's first aircraft purposefully-designed as a commercial passenger plane. It was a high-wing, strut-bra ...
Other Maybach engines
The earlier Maybach engines were: *Maybach AZ of 1909: *Maybach CX of 1915: *Maybach DW and IR of 1914: *Maybach HS (there was a variant HSLu, known also as HS-Lu) of 1915: *Maybach Mb III - a new designation for the existing Maybach IR engine *Maybach Mb IV - a new designation for the existing Maybach HS engine The power ratings for these older engines are at sea level, unlike the rating of the Mb IVa.Specifications (Mb.IVa)
See also
References
Further reading
*{{cite book , last1=Düsing , first1=Michael , title=German & Austro-Hungarian Aero Engines of WWI , date=2022 , publisher=Aeronaut Books , location=n. p. , isbn=978-1-953201-53-9, volume=3 Maybach engines 1910s aircraft piston engines Airship engines