I've been trying to build a gybe simulator to help someone learn on dry land. I've seen pictures of the turf dog but didn't want to go that way as that seemed more for freestyle moves, but i may be wrong.

The intention was to make someting that goes slow on sand or grass, low to the ground, and steered by tilting the deck. See photo. Feels like it should work but haven't tried with wind yet, although it skates ok.

Questions; 1/does it look like it will do the job? 2/ did i make it too short - 890 mm wheelbase. On a real windsurfer the distance stern to mastfoot is about 1300mm 3/ where should the mast foot go - over the front axle?