The first foil, drawn eighteen years too early

Drawn

2000

Foiling goes mainstream

Around 2018

The gap

Eighteen years

Same pattern

The hand wing: prototype years before the sport

What does being eighteen years early actually cost?

Everything except the idea.

A hydrofoil in 2000 was not wrong. It was unsupported. The board under it was designed for a different job, the mast was longer or shorter than anything anyone had a feel for, and there was no body of knowledge about how to teach someone to ride one — no progression, no rental fleet, no friend who already knew. The rider had to supply all of that themselves, out of stubbornness.

That is not a technical problem and it cannot be solved with a better drawing. It gets solved by time and by a lot of other people arriving.

So why draw it in 2000?

Because the argument was already good. A foil separates the rider from the surface, and the surface is where most of the drag and nearly all of the chop lives. Everything downstream of that — the speed at low wind, the quiet ride, the range — follows from one geometric fact that was as true in 2000 as it was in 2018.

The honest reading of that table is that the design was never the bottleneck.

What does a designer do with an idea nobody wants yet?

Keeps riding it, mostly, and stops arguing about it.

The tempting move is to push — to build the boards, write the teaching, fund the category and drag the sport forward by the collar. That is an enormous amount of money spent on being right early, and being right early is worth nothing on its own. The other move is to draw the thing properly, ride it, learn what it actually needs, and let it sit.

Eighteen years is a long sit. What makes it survivable is that the learning does not expire: the mast heights, the areas, the way a rider's weight moves when the board leaves the water. When the sport turned up, none of that had to be discovered again.

What did the platform idea change?

Later, at the other end of that arc, the foils turned modular: one mast and fuselage system with wings that moved between uses instead of a separate complete foil for every discipline. The assisted foil patent, granted in 2019 from a 2016 priority, is from the same stretch — a hull whose drive works at displacement speed and then leaves the water once the craft is flying.

A rider feels modularity as a smaller decision. Instead of buying another foil to find out whether more area suits them, they change one part. That is the idea the REVSTAR system is built on now: frontwings, masts, fuselages and stabilizers as one connected set rather than a shelf of complete foils.

Hood Memory Lane is the record of what got built in Hood River before OXZA existed, told in the past tense. The dated version is on Tony's timeline, where the 2000 foil sits eleven years before the first hand-held wing and nineteen before that wing shipped. The patents from this period are assigned to Slingshot Sports LLC, not to OXZA, as the press page says.