Piasecki HRP Rescuer tandem rotor helicopter nicknamed "The Flying Banana". Twenty eight were built in the late 1940s.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...a_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...rp1_banana.jpg
https://diqn32j8nouaz.cloudfront.net...1_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...2_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...676#post201639
https://www.homemadetools.net/forum/...144#post141458
https://www.homemadetools.net/forum/...285#post134952
https://www.homemadetools.net/forum/...646#post174402
https://www.homemadetools.net/forum/...906#post190921
