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Surfboard Geometry and Design

Surfboard Geometry and Design . Image Source: http://wikimedia.org. Latest Technology Board Riding. Source: http:// www.youtube.com/watch?v=GwVnq_t-Wc4. Types of Surfboards Choosing a Surfboard Parts of a Surfboard Surfboard Fins Fin Configurations Making Surfboards by Hand

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Surfboard Geometry and Design

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  1. Surfboard Geometry and Design Image Source: http://wikimedia.org

  2. Latest Technology Board Riding Source: http://www.youtube.com/watch?v=GwVnq_t-Wc4

  3. Types of Surfboards • Choosing a Surfboard • Parts of a Surfboard • Surfboard Fins • Fin Configurations • Making Surfboards by Hand • Computer Design and Manufacture Surfboard Geometry and Design

  4. Types of Surfboards Image Source: http://sandiegosurfingschool.com

  5. High Performance, Sharp Nose, Thin Rail Edges, Highly Curved Deck, Three or Four Underside Fins The Shortboard Image Purchased by Passy World from Dreamstime.com

  6. Shorter, Wider, and Flatter than the Shortboard; works well in small mushy surf. The Fish Images Source: Google Images

  7. Oldest design, Rounded Nose, Long and Wide, Great for small waves and Beginner Surfers. The Longboard Image Source: http://surfingaustralia.com

  8. Brazilian Surfers Nose Riding on Longboards. The Longboard Source: http://www.youtube.com/watch?v=xNMLOCNo4BY

  9. Smaller than Longboard, thick and long giving Buoyancy volume, paddling power, and stability. The Funboard Image Source: Google Images

  10. Special Board for Huge Waves. Very Long for Paddling Speed. Designed for very High Speeds and Control. The Gun Image Source: http://wikimedia.org

  11. The typical hybrid is a larger and wider version of either the Shortboard or the Fish. Great for medium size days. The Hybrid Image Source: http://surfingaustralia.com

  12. The Stand Up Paddle Board “SUP” gives four times the Paddling power of a normal surfboard. Tow-InBoards with Jet-Skis used for Big Wave entries. Other Types / SUP Images Source: Google Images

  13. Detailed Sizing Charts are used for the Type of Board you need for your height, weight, and surfing style. Choosing a Surfboard Image Source: http://surfertoday.com

  14. Changing the Geometrical Shape of each part significantly changes acceleration, stability, hold, and manoeuverability. Parts of a Surfboard Fins Image Source: http://renasis.com

  15. Pointy - dropping into big waves, and paddling in chop Round - easier to paddle, glide, and plane on the surface. The Nose Image Source: http://surfingaustralia.com

  16. Rocker is the curving upwards of the deck (nose and tail) Fish and Longboard (small waves) have minimal rocker. The Rocker Image Source: http://konaboys.com

  17. Stringer - stiffener placed down the middle of the board to strengthen the core and add rigidity. The Stringer Image Source: Google Images

  18. The “Rail” edges of the surfboard are rounded (“soft”)on Longboards for stability and tracking, but go to a right Angle (“hard”) shape where they meet the bottom of Shortboards to give acceleration and tight turning. The Rails Squared off bottom “Hard” Rail profile along the edge of a Fish Board from Nose to Tail. Image Source: http://swaylocks.com

  19. Round / Pin – stable in big surf, smooth round turns Squash / Square – more lift, plane, pivot, loose sharp turns Swallow / Angular – Quick water release for mushy waves Tail Shapes Image Source: http://surfertoday.com

  20. Fins are required to turn the board, stop sideways slipping, and hold the board onto the face of the wave. Surfboard Fins Image Source: http://mpora.com

  21. There are many Fin Types, Shapes, and Arrangements. Surfboard Fins Tutorial Source: http://www.youtube.com/watch?v=nm57d4C9rZs

  22. There are key measurements which define each fin type. Fin Characteristics Source: http://surffcs.com.au

  23. Fin Profile called “Foil” critically affects turning, hold on the wave face, drive acceleration, and stability. Foils on Fins Image Source: http://surffcs.com.au

  24. There are four common Fin Profiles or “Foils” Foils on Fins Information Source: http://fcs.com.au

  25. Drive, (Speed), Pivot (turning) and Hold/Release Foils on Fins Image Source: http://surffcs.com.au

  26. Foils on Fins Original Image Source: http://www.fcs.com.au

  27. Flex and Cant on Fins Original Images Source: Google Images

  28. Detailed Fin Measurements Image Source: htttp://wavegrinder.com

  29. Fin Base Profile pushes up a “Bulbous Wave” at 180 degrees to the fin cutting wave to create cancellation. Bulbous Bullet Fin Image Source: htttp://bulletfins.com

  30. The incredible acrobatic surfing we see today is due to the evolution of Fins over the last ten years . Evolution of Fin Technology Source: http://www.youtube.com/watch?v=mCfXlSa7VE4

  31. FCS Fins Australia are world leaders in Fin Technology, and continue to create exciting new products. FCS Fins Australia Images Source: htttp://fcs.com.au

  32. Depending on Surfboard Type, there can be 1 to 4 fins used. (Five fin boxes under the board allows for Tri or Quad). Fin Configurations Images Source: Google Images

  33. Bottom contours influence how water travels under the surfboard, and assists lift, planing and manoeuverability. Bottom Contour Image Source: www.shapers.com.au

  34. Decks are either flat or domed and slippery fibreglass needsthick wax or rubber grips applied to it. Surfboard Deck Image Source: htttp://vimeocdn.com

  35. “Shapers” turn a foam blank into a proper surfboard using cutting and measuring tools, sanders, fibreglass, and resins. Making Surfboards Image Source: htttp://vimeocdn.com

  36. An order form and detailed plan is used to measure and make each surfboard to the customer’s requirements . Making Surfboards Image Source: htttp://hollowboards.com

  37. “Shapers” and “Glassers” hand make custom surfboards. Handmade Surfboards Source: http://www.youtube.com/watch?v=d9Lly3VMW_A

  38. “Shapers” use special measuring tools. Handmade Surfboards Image Source: http://foamez.com

  39. Modern Surfboards are mass produced using computerised design / scanning equipment as well as shaping machines. Computer Design and Manufacture Image Source: http://borstdesigns.wordpress.com

  40. A “real” Surfboard is made by a master shaper and then Scanned to store all of its 3D Geometrical characteristics. Computer Design and Manufacture Image Source: http://borstdesigns.wordpress.com

  41. The Board can be customised and then automatically cut out and fully shaped using computer controlled machinery. Computer Design and Manufacture Images Source: http://borstdesigns.wordpress.com

  42. This design wouldn’t “Float” as a Surfboard, and makes q difficult guitar to dance around with, but is interesting. Hybrid Design Images Source: Google Images

  43. Mathematics of Surfing Complete details of all material covered in this presentation can be found in the “Mathematics of Oceans” lesson on the Passy’s World of Mathematics Website: www.passyworldofmathematics.com

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