1922 Pescara helicopter built by Argentinian engineer Raul Pateras Pescara.
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Previously:
https://www.homemadetools.net/forum/...233#post150058
https://www.homemadetools.net/forum/...275#post150238
https://www.homemadetools.net/forum/...219#post149989
https://www.homemadetools.net/forum/...449#post135588
https://www.homemadetools.net/forum/...414#post142609
https://www.homemadetools.net/forum/...144#post141458
