Explained: How do the America’s Cup yachts sail upwind? | Stuff.co.nz

We're about to see a deluge of sailing over the coming months with the numerous America's Cup regattas in Barcelona. But how do those boast sail into the wind when that same wind is propelling them forward? As Explainer Editor Lloyd Burr found out, it isn't rocket science - but it is science. | Subscribe: https://bit.ly/2JPg8oB


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