The following link provides an interesting and full report with information and many photos about the use by the major military powers of helicopters during Second World War, undoubtedly, a rare theme and little explored in topics. The article can be viewed by visiting the link below:
http://aviacaoemfloripa.blogspot.com.br/2011/02/asas-rotativas-na-segunda-guerra-mundial.html
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March 12, 2016 at 10:38 am