"It's going to be a great tool for us and we can't help but think what we learn on and off the water is going to be invaluable to us for our success in Auckland 2021," American Magic skipper and executive director Terry Hutchinson said at the launch.
"Really, each milestone you're going to the next one and, as always, a measure of the team and the execution and the consistency ... the fact that 90 minutes into the first sail we were foiling and we bore away and executed a foiling manoeuvre ... to me that was the best thing about it."
Last week, Emirates Team New Zealand started testing their radical new boat's rigging and sail systems.
The boat, named Te Aihe, was unveiled last Friday at Auckland's viaduct, with fans getting their first chance to see the vessel that Team New Zealand hope can defend the 2021 America's Cup.
The crew then took the boat for a tow on the harbour, but were more secretive about their first foiling session - although that didn't stop intrepid followers from managing to spot the crew in action last Monday.