"I've found it very time consuming and that has put a lot of pressure on me from an availability point of view. It's very difficult from Tauranga, if you want to have a one hour meeting in Auckland it will cost me the whole day. So the chair will be far better residing in Auckland."
Turner has endured a rocky tenure with Team NZ as the syndicate dealt with a strong public backlash following their pleas for further Government funding, and fall-out from the poorly handled departure of former skipper Dean Barker.
He leaves the team at a time when their future in uncertain, with the Government last month confirming they would not be investing in Team NZ's next campaign after America's Cup authorities reneged on an agreement to award Auckland hosting rights for the qualifying series. Team NZ are still fighting to have Auckland reinstated as the host of the America's Cup qualifiers in early 2017.
Turner said he is unaware if a new chair has been appointed in his place.
"The matter of the board and how the company goes forward is under discussion. But I haven't been involved in those conversations for a week now, so I can't really speak to that," he said.
Team New Zealand officials were not immediately available for comment.