Estos son algunos comentarios sobre Volar Libremente en el foro de la NFFS
"... I found it online just yesterday at:
It came from here, nice site!
http://aeromodelismovolarlibremente.blogspot.com/search/label/Vintage%20F.A.I.
Dennis Phelan_________________
that is an excellent website with all links on the left side that take you off to other really neat places. Thank you for sharing.
Charlie Jones
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