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Wright Twin Cyclone Vs. Pratt & Whitney Twin Wasp piston engines.


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11 replies to this topic

#11 Rick65

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Posted 10 March 2017 - 12:07 AM

Usually the more cylinders the more efficient, which can be expressed in either greater power or greater fuel efficiency or both.

Smaller combustion chambers burn the mix better than larger ones all other things being equal and a 1820 cu inch 9 cylinder engine has big combustion chambers.



#12 Stratocruiser

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Posted 10 March 2017 - 09:51 AM

According to Wiki' is it surprisingly (to Me) the multiple cylindered P&W Twin-Wasp wich is most fuel efficient: About 20% lesser consumption in power/hour!
It might be fuel economy (=range) wich reasons the devotion by the airforce, this
in contradiction to the complexity of the two-row :-/

BTW Wiki' claims the Twin Wasp to be 'maybee the most produced aircraft piston engine' unregarded the Cyclone have the by Me mentioned licences production to support the still rising numbers :-/

 

Some other ideas here ...  http://aaminis.myfas...t__t_26195.html






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