Great concept , would have to be on a pretty big scale. Could wear crash gear and go in opposite directions , I'd go see that

Kites could use the upper air stream

Can you include an eternal wave going around as well?

mr love said..
Would be like Nascar

Velodrome

Thunderdome

Great idea, Circulate the water at about 10 knots and you've got a real downwinder. 35 knots water speed but only a 25 knot crash into the front row of the grandstand.

Thanks for the ideas. I think the thunderdome/nascar aspect would be pretty appealing from a spectator perspective. I could imagine seating on the outside (windward) with a safe run-out area on the inside (leeward).

I hadn't thought about Kites. The risks around Kites + Fans might rule that out.

The idea of a completely demountable/modular structure and a shallow above ground pool is appealing. I go speed sailing in less than 30cm of water, how deep should it be ?

Size wise I thought you might get away with a 15m wide pool. It would be feasible that the entire building would then be 100m by 100m in size and about 15m high.

Theoretically there's not much flow between segments of the donut. That means you should be able to prototype on just one slice of the donut and measure performance (it'd need firm end plates of course).

Lots of good indoor surfing here, sorry, no wind.


If you haven't seen it, check out "Perfect Holiday" by the same guy, it's mostly outdoor surfing, and more refined.

this was posted a few years back by someone in another forum (didn't get a warm reception at the time)