Deano72 said...Redfezz said...Kami ,
I wish I could find a photo of the old Byrne clinker bottom twin fin, as far as I know they were the only ones making them, with the larger deeper channeled bottom. The channels on the rails were at least 1 inch deep, I had a couple of them during my hey day(when I could surf). They were only ever produced in a twin fin so when thrusters came out they just fazed out. Most guys went for the thruster because of the extra drive off the bottom and ability to snap of the top and obviously they took a lot of extra time and effort to shape.
Now I,m getting emotional ,AHHH the good old days, The older I get ,the better I surfed.
Red

PS I absolutely love that 7,11, NB Dogman
Crazy concave / channel bottom beasts continued well beyond the twinnie era.
Byrning Spears (Al Byrne & Thorton Fallander) did some sick boards during the 80's!!
1/2" concave under your front foot and 3/4" deep channels out through the tail.
Remember Kong taking apart Sunset back in the day.....guess what he was riding.
AB is still shaping them
www.byrningspears.com/about/board-design/ Red, you are a providence, please find these photos of the old Byrne clinker bottom twin fin because this is what i look for. Probably HOT STUFF boards , I've seen some... For me SUP is a twin , the paddle the third fin; An extra edge outside the Twin and a groove on the tail can be usefull with a paddle like third and as moving fin.

I test this board whith that fins H1 PC7 as trailing fin , for me this trailing fin is too much fin. I had to move the font one more inside and back, then reorganising channels dimensions. Your photo will be wellcome
This photo will be important to help drawing fins aside channels position .
Like you, i'm getting old and SUPsurfing give me a extra ball in my surfing life that i would'nt expect 4 years ago,started SUP. wish us a lot more waves to take off!

Dean, Yes AB is the Master. The boards he made to Gary E is still a reference. I had the luck to share waves with Gary at my homespot where he was expatriate by late 80 until bigining 90. His surfing by Biscaye winter strong swell on my beach break, I've seen him stopping thick lip by reentring the waves, amazing.. it was by cold morning session

Also, He surfed that board when he did 'nt came trhougt the final at G.LAND, he should be at the first place with his backside attack on this wave, only allowed with this type of board.
The only trouble with concave is , they are sliding off the lip when no pressure applies on it. But this is a luck for SUP to make easier reentries move

I wish shapers like AB can do a SUP version , there is addicted for sure!