In planning for a second build, I am looking to see if anyone could direct me to a design for a folding a-frame tongue. The tongue would fold up to allow storage in a garage. I have seen one on the Eco-Tourer camper/caravan from New Zealand manufacturer. (You can see it at about 48 seconds into this video: http://www.youtube.com/watch?v=XvHmIDz2qCA).
I am aware of a horizontal folding tongue for a 3" square tube single tongue that swings to the side. This would probably be structurally okay, but I don't like the aesthetics of this design.
Thank you for your time.