The Ekstrom

Planing Hull Asymmetric

The Ekstrom

Ekstrom

Carl Ekstrom innovated the asymmetric surfboard in the mid Sixties. Asymmetry helps loosen the heel side rail of a planing hull by allowing for more curve which essentially creates a shorter, more maneuverable board on the heel side. The board shown here is designed for a regular foot, a goofy foot board would be the exact opposite. The toe side rail is long and straight with a single keel for drive, giving powerful projection off the bottom while the curved heel side allows for tight arcs off the top.

Current fin set up is a fish style keel fin on the toe side with a standard Gephart quad set up on the heel side. The asymmetric planing hull is a dynamic and functional board with a ride all its own.

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The Ekstrom
The Mini-Simmons

Planing Hull

The Mini-Simmons

An excellent starting point for the planing hull experience. It is the widest, flattest, and fastest of all the designs in the line.

The Simster

Planing Hull Tri Fin

The Simster

The Simster was inspired by Simmons’ attempt to build Bev Morgan a short, tri-finned planing hull nearly sixty years ago.

The Golden Mean Machine

Planing Hull

The Mean Machine

Aspect ratio of the planing surface in accordance with concepts explored by Lindsay Lord, Bob Simmons, and Fibonacci.

The Cybersim

Planing Hull

The Cybersim

The CyberSim is a scaled down version of the original hydrodynamic planing hull designed by Bob Simmons in the 1940s.