I have a lot of single fins, but I like them on the longer side. For me from about 7' on they work great. I think they work best with the wide point forward of center, and with a straighter tail curve, but I have a few that are not like that and they ride good. I also like a spiral vee or double concave in the tail. I think the mid length single fin is a great all around board.
All of my boards between 5' 8" and 6' 8" that started as singles have been converted to thrusters or quads. I think they work better with the side fins.
Thanks everybody to keep that post alive and continue to give some informations! Already saw that vid but it's a good one even if its a commercial.
Just to explain, it will not be my first shape but my third and i got different surfboards already but i want to try a "short" single fin.
Just you to know my quiver for the moment:
- Purple Haze single fin custom by Phil Grace (living close so...) 6'8 20"7/8 2"3/4 (not sure to remember exactly but it's a 6'8)
- A Plonka surfboard thruster with a lot of volume: 6'2 21" 2"3/4
- My first shape like a mini-longboard with diamond, boxy rails, flat bottom for summer 6'4
- My second a 6'1 thruster (i wanted to put a single but my tail was so thin :D LOL so..) with a pin tail and my rails was messed up, very square. WP forward but with feeling.
- A catchsurf 5'6 quad/twin for summer or fun. Like a little skate, very funny, lot of volume and perf for a softboard.
So, now i'm trying to do a template from something work to improve my shape. Was thinking about the bluebird McTavish or Cannon Haydenshapes. But i think it will be the bluebird on 6'1 even if they are shaping this only on 6'2. My foam is 6'2A from USBLANKS so it will be too short for a 6'2.
Diamond tail. No decided yet for the bottom contours. Maybe a little concave and vee. Still thinking about it. I want to keep volume to be easier paddling and keep proportion so it will be:
6'1 - 20" or 20"1/4 - 2"3/4
For the rails, not decided too. If you got ideas.
Thanks for everybody and Alberto for the precious help! Still thinking about it.
PS: if somebody surfed a Cannon HS, i'm interesting for a review!
In the early 70s, that blue bird shape was what we all wanted. Usually with a lightning bolt on it. This is probably about 1970 or 1971. I'm the little guy with the blue and yellow board. That board was 5' 6", I bought from the guy who made surfboards across the street from this beach.
Great pic harry.
If I was going to take another shot at a short singlefin I'd go with a diamond tail and a 6-channel bottom. And I'd lay the channels with the same toe-in that the sidefins will use because I know that's where I'm going to end up anyway.
But that's not a design I'd recommend for a novice.
Just made the template of the bluebird! We Will see some action soon!
I made myself a single fin once and the thing was just too wild. I couldn´t move it forward, anytime I´d make a motion for the board to go forward it would actually move sideways losing control. So I made a nice channel starting at 3/4 end of the fin about 1 inch each side and then spreading wide and deeper as it moved towards the end of the tail.
It was just one channel, and pretty much just behind the fin. It solved the problem and the board became a lot more fun to ride since I could put a bit more movement on it.
I hope you post pics of the build and the finished product!