Source: http://www.aerodrome-gruyere.ch/blogs/index.php?title=travail_a_l_helingue&more=1&c=1&tb=1&pb=1
[youtube http://www.youtube.com/watch?v=R3J2PiWM5bw&w=480&h=390]
Le succès du Robinson R-66 à turbine
https://www.flyer.co.uk/robinson-r66-turbine-sales-hit-top-spot/?…