It's not a golf thing. Double Eagle is a sardine carrier - a traditional wood one, maintained at Lyman Morse boatyard in Thomaston, Maine. The transporter's giant vacuum cleaner takes the fish from the draggerz and then hurries to market.
It looks to me like the sardine carrier called Grayling that Benjamin Mendlowitz photographed for WoodenBoat. The whole slide show can be found on my Picasa site here.