Bob Simmons

Bob Simmons (1919–1954) approached surfboard design through the behavior of planing hulls. In postwar California, he applied naval architect Lindsey Lord's research to outlines, foil, rails and nose lift, exploring how a board could carry speed and respond to its rider. His experiments included wide, twin-keeled shapes and work with Joe Quigg on early foam-cored sandwich construction.

A California Surf Museum account by collaborator John Giles shows how one of these boards combined materials: plywood formed its skins, balsa shaped the rails, Styrofoam filled the interior, and fiberglass covered the finished board. That example illustrates a construction method, rather than a recipe for every Simmons shape. His work connected hydrodynamic ideas with hands-on building and became a reference for later designers revisiting compact planing hulls.