Woohoo blanks arrived, I forgot that I'd ordered them at 2.75" thick, they look sweet.
Remember I warned you that this video is not much:
I might have missed the point but wasn't this board meant to be suitable for huge waves on consequence
It just looks really lose in even the small waves you've just posted, how will it handle in 15' plus waves with the serious speed
Only asking incase i missed something along the line
Hi Roy, enjoyed that vid, the board looked fast and fun, certainly not bothered too much by the chop, I look forward to some more footage
I wish you had gone for a longer drive Roy - this place is not that far from you. There were a couple of days of great waves around - it would have been nice to see how your new board went in some decent waves. Its not often that coast lights up like that - a shame you missed it. Seems a missed opportunity.
Nice vid Ted, not sure that it was the same day I was out as there was a serious cross swell to contend with. I know the spot, but due to a serious staph infection was lucky to get out at all.
Here's the first 11 footer with rocker, deck, and planshape cut out. It's the 64A-017 ( these obscure sounding numbers are to do with the origin of the planshape curve and proportion... 'A' refers to a straight section in the tail planshape and 17 is the width to length proportion, in round figures)... anyway 11' by 23" by 2.75" with a tail measurement of 4.5" and a nose at 14".
Widepoint is 40% aft. Stringerless this time.
Spotted at Mount Maunganui... here's James' ride report on the 9'5" 64A-017:
"It's good, paddles like a demon, easy enough to control, on take off you can just rotate it from the center. I got it moving pretty fast but you have to work it up and down the face a bit more than a tunnel finned board. Its very easy to ride, Easy to catch waves on, I clicked with it straight away just miss the tunnel. Got some good waves too.
Roy for all your physics gusto I would like to hear your thoughts on tomo surfboards. Is he a genius?
And please play nice my good sir..no calling people fat bastards who glutton beer and pies.
Can I ask what is the point of that tail design? (Serious question Roy - what are you trying to achieve with this design ?)
Thanks for asking.
It's a development or extrapolation of my existing displacement tail designs ( or 'sinker tails' as they are sometimes called).
There are three 'features' of this shape:
1) The tail sinks under pressure, this has a similar effect to increasing the rocker and it has some nice effects on the handling,... it keeps the pitch fulcrum ( rather like the hinge on a seesaw) of the board in a stable position, so the rider doesn't feel chop as much and the board's reaction to input remains predictable.
Planing surfaces increase lift by the square as speed increases, with conventional designs this has the effect of shifting the wetted surface area and planing area back on the board as speed increases, this moves the fulcrum back towards the tail, making the board unbalanced and causing handling issues. With displacement based lift speed makes no difference, the tail response stays more or less the same.
That's the basic idea of the displacement tail, this '66' series shape makes the effect more extreme by reducing planing area even more.
2) Water exit or 'release'. With a displacement tail the water leaves at the very tip of the tail, rather than over a horizontal hard planing edge as is the case with conventional boards. By having an incut on the tail the rails of the board are more parallel at the exit ( this makes for more efficient flow mixing as the water leaves) and the 'stream' in the direction of the water flow more closely.
3) There's a hip in the planshape cause by the incut, which should give a nice turning section of the rail close to the rider.
I could say that the board is like a pig shape complete with pigtail but I won't.
I haven't ridden a planshape with incut yet so we shall see, I can say with confidence that she'll float, paddle well, and will definitely catch waves, for the rest I'll report back when we get the machine wet.
The board would no doubt work finless too.