Canard Placement

Hey Herb, Tom, Paul and the other fin experts what happens when you move the canard placement around in front of the the fin. To start with what happens when you put a little one directly in front of the fin? Better Surfin’, Rich

Hey Herb, Tom, Paul and the other fin experts what happens when you move > the canard placement around in front of the the fin. To start with what > happens when you put a little one directly in front of the fin?>>> Better Surfin’, Rich …I’ve noticed that it causes to increase the base length alot.It does draft the fin on a straight line but tends to bog in turns. …By the way Bill Fury of “Plastic Fantastic” fame had done just what you have described some 30 years ago…let me see if I can find that archive.Herb.

This may be a little different from what you’re talking about. Wonder if it works?

…I’ve noticed that it causes to increase the base length > alot.It does draft the fin on a straight line but tends to bog in turns.>>> …By the way Bill Fury of “Plastic Fantastic” fame > had done just what you have described some 30 years ago…let me > see if I can find that archive.Herb. …Here you go Rich,look up in the archives under “Drew” and/or “Supercharger fin theory”, Herb.

This may be a little different from what you’re talking about. Wonder if > it works? …I heard about some one running around last years ASR show with mini glue-on/stick-on fins…I wonder if you can still get them?Herb

…I heard about some one running around last years ASR show > with mini glue-on/stick-on fins…I wonder if you can still get > them?Herb Thanx for the reference Herb. So the way I get it is that a canard will break the turbulence around the leading edge of the fin but while it makes the vehicle faster it reduces the turning force a given fin will privide. Yes? No? How about different shaped canards and different depth canards is there a best fin to canard ratio.? Is there a prefered template outline? I notice the ones in ajl’s photo are reminiscent of dolphin dorsals. I have my own ideas about what might work well but have no experience or point of reference only what my intuition tells me. Stick on canards would be a great way to experiment. Better Surfing, Rich

Thanx for the reference Herb.>>> So the way I get it is that a canard will break the turbulence around the > leading edge of the fin but while it makes the vehicle faster it reduces > the turning force a given fin will privide. Yes? No?>>> How about different shaped canards and different depth canards is there a > best fin to canard ratio.? Is there a prefered template outline? I notice > the ones in ajl’s photo are reminiscent of dolphin dorsals. I have my own > ideas about what might work well but have no experience or point of > reference only what my intuition tells me. Stick on canards would be a > great way to experiment.>>> Better Surfing, Rich …if you stick it up front ,yes it lengthens the base(which makes a stiffer turn,wider arc).It will make the board faster in a straight line,but during a turn it loses the drafting qualities being now off center,and actually causes drag. If you put it off to the side and alittle back it functions much like how bike racers draft each other or how a gibb sail works.Herb,e-mail me …I can help with fin ideas

…I can help with fin ideas Thanks for the straight talk on canards Herb. I’ll try and post a few of my creations on the board. Hopefully I’ll get some constructive response and who knows somebody might won’t a custom set or a single. I won’t be competing with the big boys like RedX or Furture. I mean after all how much can one do in the backyard, (nothing today cause is drizzling here in Santa Cruz) but I think I’ve made enough mistakes to know how to create some very light and reasonably high quality fins. Certainly the performance of a surfboard enourmously by fin choice. I’ll let you know what the boys are saying about the ones I have in the water to date as the reports come back. Thanx again for all the insite. Good Surfin’, Rich

Thanks for the straight talk on canards Herb. I’ll try and post a few of > my creations on the board. Hopefully I’ll get some constructive response > and who knows somebody might won’t a custom set or a single. I won’t be > competing with the big boys like RedX or Furture. I mean after all how > much can one do in the backyard, (nothing today cause is drizzling here in > Santa Cruz) but I think I’ve made enough mistakes to know how to create > some very light and reasonably high quality fins. Certainly the > performance of a surfboard enourmously by fin choice. I’ll let you know > what the boys are saying about the ones I have in the water to date as the > reports come back. Thanx again for all the insite.>>> Good Surfin’, Rich …Always keep the doors of perception open,Herb.

if someone wants to experiment with different canard profiles, and different canard placement, they can make themselves 2 or 3 different sets… if / when you lay up your fin panel, lay up a thin panel about 4 cloth layers thick, and cut quarter (coin) size discs from it to serve as canard bases. you would actually glass the little chargers or canards to the disks. at experimentation time you would use hot-melt adhesive to attach your little assemblies wherever you want. a good twist should be sufficient for removal. possible drawbacks: having to possibly scrape hot melt off your board, and larger canards would require larger disks. i thought of quarter size with Herb’s tip forward 'chargers in mind. it’s work…but if you want to experiment without setting plugs…