Jump to content
 







Main menu
   


Navigation  



Main page
Contents
Current events
Random article
About Wikipedia
Contact us
Donate
 




Contribute  



Help
Learn to edit
Community portal
Recent changes
Upload file
 








Search  

































Create account

Log in
 









Create account
 Log in
 




Pages for logged out editors learn more  



Contributions
Talk
 



















Contents

   



(Top)
 


1 Design and development  





2 Variants  





3 Applications  





4 Specifications (BMW VI 7.3z)  



4.1  General characteristics  





4.2  Components  





4.3  Performance  







5 See also  





6 References  





7 Further reading  














BMW VI






Čeština
Deutsch
Español
فارسی
Français
Italiano

Português
Русский
Türkçe
Українська
 

Edit links
 









Article
Talk
 

















Read
Edit
View history
 








Tools
   


Actions  



Read
Edit
View history
 




General  



What links here
Related changes
Upload file
Special pages
Permanent link
Page information
Cite this page
Get shortened URL
Download QR code
Wikidata item
 




Print/export  



Download as PDF
Printable version
 




In other projects  



Wikimedia Commons
 
















Appearance
   

 






From Wikipedia, the free encyclopedia
 


BMW VI
BMW VI at the Technik-Museum Berlin
Type V engine
Manufacturer BMW
First run 1926
Major applications Heinkel He 51
Kawasaki Ki-10
Developed from BMW IV
Developed into BMW VII
Mikulin M-17

The BMW VI was a water-cooled V-12 aircraft engine built in Germany in the 1920s. It was one of the most important German aero engines in the years leading up to World War II, with thousands built. It was further developed as the BMW VII and BMW IX, although these saw considerably less use. It was also produced in the Soviet Union as the M-17 and Japan as the Kawasaki Ha-9.

Design and development

[edit]
Front view of the BMW VI

The BMW VI was the first twelve-cylinder engine built by the BMW. It essentially consisted of two cylinder banks from the six-cylinder BMW IV bolted to a common cast aluminium crankcase at a 60-degree included angle between the cylinder banks. Series production commenced in 1926 after type approval had been granted. From 1930 on, after 1000 engines of the BMW VI type had already been delivered, Germany was again permitted to construct military aircraft. The sudden additional demand resulted in the production figures increasing rapidly. In 1933 the BMW VI was used for BMW's first experiments with direct fuel injection.

The BMW VI was the chosen source of power for numerous record-breaking and long-distance flights, including an east-to-west crossing of the Atlantic in 1930 and a round-the world flight in 1932, both by Wolfgang von Gronau in an open Dornier Wal flying boat powered by two BMW VI engines.

The BMW VI was put to unusual use as a power unit for the "Rail Zeppelin" high-speed railcar. Many versions of the BMW VI engine were developed, and it was built under license in Japan and the Soviet Union. This was further evidence of the reliability of an engine with which BMW made a fundamental contribution to the build-up of German air transport. At least 9,200 were built between 1926 and 1938. The engine was license-built in the Soviet Union under the supervision of Mikulin, who then further developed it as the M-17. More license built engines were produced by Kawasaki Heavy Industries in Japan as the Kawasaki Ha9 (long designation:- Army Type 98 850hp Liquid Cooled In-line).

Variants

[edit]

5.5, 6or7.3 denotes compression ratio. No additional letter denotes BMW carburetor and direct-drive propeller (7.3), u denotes a propeller reduction gear (7.3u), z denotes Zenith carburetor (7.3z), zu denotes Zenith carburetor and propeller reduction gear (7.3zu).

BMW VI at the Technik-Museum Berlin
BMW VI 5.5
Compression ratio 5.5:1, 600–650 PS (592–641 hp) at up to 1600 rpm at sea level
BMW VI 6.0
Compression ratio 6:1, 630–660 PS (621–651 hp) at up to 1650 rpm at sea level, 80 Octane fuel
BMW VI 7.3
Compression ratio 7.3:1 680–750 PS (671–740 hp) at up to 1700 rpm at sea level, 87 Octane fuel
Mikulin M-17
Licence production in the USSR
Kawasaki Ha9
(long designation:- Army Type 98 850hp Liquid Cooled In-line) licence production in Japan by Kawasaki

Applications

[edit]
BMW VI head detail
  • Arado Ar 64
  • Arado Ar 65
  • Arado Ar 68
  • Arado SSD I
  • Brutus (car)
  • Dornier Do 10
  • Dornier Do 14
  • Dornier Do 17
  • Focke-Wulf Fw 42
  • Heinkel He 45
  • Heinkel He 51
  • Heinkel He 59
  • Heinkel He 60
  • Heinkel He 70
  • Heinkel He 111
  • Junkers F.24ko
  • Kawasaki Type 92
  • Kawasaki Ki-10
  • Messerschmitt M.20
  • Polikarpov R-5 prototype
  • Schienenzeppelin
  • Tupolev TB-3
  • Specifications (BMW VI 7.3z)

    [edit]
    Side view of the BMW VI

    Data from Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944 [1]

    General characteristics

    Components

    Performance

    • 750 PS (740 hp; 552 kW) for takeoff at 1,700 rpm (1 minute) at sea level
    • 690 PS (681 hp; 507 kW) at 1,650 rpm (5 minutes) at sea level
    • 620 PS (612 hp; 456 kW) at 1,590 rpm (30 minutes) at sea level
    • 550 PS (542 hp; 405 kW) at 1,530 rpm (max. duration) at sea level
    • 0.23 kg/PSh (0.514 lb/(hp⋅h); 0.313 kg/kWh) at 1,590 rpm
    • 0.225 kg/PSh (0.503 lb/(hp⋅h); 0.306 kg/kWh) at 1,530 rpm

    See also

    [edit]

    Related development

    Comparable engines

    Related lists

    References

    [edit]
    1. ^ Schneider, Helmut (Dipl.Ing.) (1944). Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944 (in German) (Facsimile reprint 1986 ed.). Leipzig: Herm. Beyer Verlag. p. 365. ISBN 381120484X.

    Further reading

    [edit]
    Retrieved from "https://en.wikipedia.org/w/index.php?title=BMW_VI&oldid=1184961681"

    Categories: 
    BMW aircraft engines
    1920s aircraft piston engines
    V12 aircraft engines
    Hidden categories: 
    CS1 German-language sources (de)
    Articles lacking in-text citations from April 2018
    All articles lacking in-text citations
    Commons category link is on Wikidata
     



    This page was last edited on 13 November 2023, at 18:16 (UTC).

    Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.



    Privacy policy

    About Wikipedia

    Disclaimers

    Contact Wikipedia

    Code of Conduct

    Developers

    Statistics

    Cookie statement

    Mobile view



    Wikimedia Foundation
    Powered by MediaWiki