Deux vidéos pour en savoir plus sur ces deux éléments
The wing sails
https://www.youtube.com/watch?v=hbPTnF6liF8&feature=player_embedded
All about the foils
https://www.youtube.com/watch?v=HzbZ53cSGPE&feature=player_embedded
The wing sails
https://www.youtube.com/watch?v=hbPTnF6liF8&feature=player_embedded
All about the foils
https://www.youtube.com/watch?v=HzbZ53cSGPE&feature=player_embedded