When a surfboard shaper who has decades of experience in various watercrafts can come along and provide all that experience into a specific fin design, it’s pretty unique.
Creating a fin design is a careful recipe much like designing a surfboard. It requires an understanding of hydrodynamics, geometry, construction and the forces acting upon it at all times. Furthermore, it delves into details such as lift to drag ratios, aspect ratios, chord length, draft, camber, tow, laminar and turbulent flow, angle of attack among other things. Choosing fins, much like ordering a custom surfboard is all about purpose and ultimate performance. We have different boards for different waves and conditions just as there are different styles of boards for different styles of surfers. Fins are no different. It should only be appropriate that you try the proper fins designed by the same person who designed your board.
Stretch has over the years produced sailboards, kiteboards, surfboards, boats, towboards, and among other things, has developed a signature fin based off his understanding of getting the most out of your complete surfing experience. His research and collaboration with NACA airfoil data and designers such as George Greenough and Curtis Hesslegrave have been more than revealing. It even goes as far as observing fish swimming in a stream to analyze their body type and natural efficiency in utilizing dynamic flow. Not merely a template design, Stretch’s fin incorporates years of research and development to determine the sizes, camber (inside foil), aspect ratio, rake and foil. A Stretch fin has been tested to be as efficient as possible in order to reduce drag, provide speed, drive, grip and release in the most effective way possible.
stretch-fins-thruster-centre
The leading edge has been designed to induce fluid cohesion and not shear water at high speeds causing fin stall. It is relatively wide and rounded to provide multiple angles of attack. Stretch also designed his fin with a full, arcing tip with a sharp point to allow water to exit the trailing edge reducing turbulent flow and tip effect. The thickness flow from base to tip is designed to increase flow and low pressure as the fin passes through the water allowing for more speed and lift. The tip of the fin is flat to remain neutral while being thin so that as pressure is applied, the excess force will allow the flow to twist off much like a birds wing in flight.
Stretch’s fin design is offered in a variety of sizes and constructions. Whether, it’s glass, composite, RTM, G-10 glass, or even bamboo, there’s a Stretch fin that’s waiting for you. Available in Future, FCS or Lokbox fin systems. Contact Stretch Boards to locate a dealer near you or to upgrade your fin set on any custom order.
When a surfboard shaper who has decades of experience in various watercrafts can come along and provide all that experience into a specific fin design, it’s pretty unique.
Stretch has over the years produced sailboards, kiteboards, surfboards, boats, towboards, and among other things, has developed a signature fin based off his understanding of getting the most out of your complete surfing experience. His research and collaboration with NACA airfoil data and designers such as George Greenough and Curtis Hesslegrave have been more than revealing. It even goes as far as observing fish swimming in a stream to analyze their body type and natural efficiency in utilizing dynamic flow. Not merely a template design, Stretch’s fin incorporates years of research and development to determine the sizes, camber (inside foil), aspect ratio, rake and foil. A Stretch fin has been tested to be as efficient as possible in order to reduce drag, provide speed, drive, grip and release in the most effective way possible.
stretch-fins-thruster-centre
The leading edge has been designed to induce fluid cohesion and not shear water at high speeds causing fin stall. It is relatively wide and rounded to provide multiple angles of attack. Stretch also designed his fin with a full, arcing tip with a sharp point to allow water to exit the trailing edge reducing turbulent flow and tip effect. The thickness flow from base to tip is designed to increase flow and low pressure as the fin passes through the water allowing for more speed and lift. The tip of the fin is flat to remain neutral while being thin so that as pressure is applied, the excess force will allow the flow to twist off much like a birds wing in flight.
Stretch’s fin design is offered in a variety of sizes and constructions. Whether, it’s glass, composite, RTM, G-10 glass, or even bamboo, there’s a Stretch fin that’s waiting for you. Available in Future, FCS or Lokbox fin systems. Contact Stretch Boards to locate a dealer near you or to upgrade your fin set on any custom order.