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For instance, the R-1820 Cyclone 9 was used in the Douglas DC-3A. LeadSongDog come howl 06:37, 15 April 2009 (UTC)
![]() | This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For instance, the R-1820 Cyclone 9 was used in the Douglas DC-3A. LeadSongDog come howl 06:37, 15 April 2009 (UTC)