Airfoil surfboard pdf#

I moved volume forward and took it to the rails at about 2/3 way up the board. I decided that the effect was due to thick point of the rail being too far aft. You'll see it in videos where guys constantly redirect. I didn't like the way some boards kept trying to straighten out in bottom turns. I've been trying to match the lengthwise foil of the rail to something approximating an airplane wing for a few years. I've always been intrigued by the concept of trying to match the lengthwise foil of the rail to something approximating an airplane wing but from what I see in the diagram posted, he's more concerned with the cross section profile and how it might match the leading edge foil of a wing.

239000000835 fiber Substances 0.Thanks for that but I just sort of make them up as I go.125000003700 epoxy group Chemical group 0.000 abstract description 2.239000004593 Epoxy Substances 0.000 abstract description 2.239000003381 stabilizer Substances 0.000 abstract description 8.239000011152 fibreglass Substances 0.000 abstract description 16.238000005728 strengthening Methods 0.000 claims description 3.238000000576 coating method Methods 0.000 claims description 5.239000011248 coating agent Substances 0.000 claims description 5.229920002223 polystyrene Polymers 0.000 claims description 8.229920001187 thermosetting polymer Polymers 0.000 claims description 11.239000003822 epoxy resin Substances 0.000 claims description 14.239000004744 fabric Substances 0.000 claims abstract description 37.238000000034 method Methods 0.000 title abstract description 17.239000006260 foam Substances 0.000 title abstract description 46.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Robert G Smith filed Critical Robert G Smith Priority to US33814373 priority Critical patent/US3873654A/en Application granted granted Critical Publication of US3873654A publication Critical patent/US3873654A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Inventor Robert G Smith Original Assignee Robert G Smith Priority date (The priority date is an assumption and is not a legal conclusion.

Airfoil surfboard pdf#

Google Patents Process of forming a rigid foam airfoil sectionĭownload PDF Info Publication number US3873654A US3873654A US33814373A US3873654A US 3873654 A US3873654 A US 3873654A US 33814373 A US33814373 A US 33814373A US 3873654 A US3873654 A US 3873654A Authority US United States Prior art keywords wing mold insert split mold compressible Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Google Patents US3873654A - Process of forming a rigid foam airfoil section US3873654A - Process of forming a rigid foam airfoil section