BIG SUN JOURNAL — Surfboard design RSS



BIG SUN HULL: HYDRODYNAMIC VS AERODYNAMIC RAIL DESIGN

  When was the last design development in the log? Maybe over 50 years when Nat Young foiled the hell out of his 9'4 in 1966'  and added a 10' inch upright Greenough and called it 'Magic Sam'? Bob Simmons is widely credited as applying his knowledge as an aircraft engineer to surfboard design to give us features like concaves, kicked noses, aspect ratios, optimum weight and rail shapes. This happened in the early 50's.  But we ask... when it comes to rail design in logs, is it correct to apply aerodynamics to a surfboard which is.... hydrodynamic.   Modern surfboard design talks about planing speed and lift, the idea being sold that once we generate enough speed we fly. We put it to you, is lift really...

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