Piasecki 16H-1 Pathfinder I in flight. (Piasecki Aircraft Corp. photo)

Piasecki 16H-1 Pathfinder I in flight

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Piasecki 16H-1 Pathfinder I in flight. (Piasecki Aircraft Corp. photo)

 

Uploaded to 4 years ago

 

License: Creative Commons Attribution-ShareAlike

 

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