After getting addicted to the feel of surfing a board with plenty of roll in the bottom combined with concaves, the next step would be to try a channelbottom with some substanial roll in the entry or first half of the bottom.
Shortish widetailed stubbie outline, with a displacment entry that transitions to a channelbottom. The channels would give more control to those widetails that I love and the belly would help that wide outline go rail to rail.
After "watching lost in the ether" and reading up on Pollard's and Byrne's design, this would be my dream board for travel and the rare quality days we get at home. Was thinking of a widowmaker style, single with sidebites set up. Maybe 60/40 rails.
length from 6'4 to 7'2 , 23 wide 3 1/4 for a gorilla surfing winter waves in Scandinavia and Scotland.
Heres is a nice shot to complement the greeenough velo outline. Bye the way get hold of a copy of Andrew Kidman's "lost in the ether" book has som fantastic info and the movie features MP discussing his MOTE baord with andrew surfing it and providing measurements.
thanks for helping posting that early velo shot, still haven’t figured out how to post them directly.
That outline scaled up to my size would be so much fun. Don’t know if it’s the angle of the shot but the widepoint almost looks behind center in that pic.
When using the term “stubbie” I mean short and wide in the ozzie sense, not a Liddle “hull”.
With a channelbottom I could till ge away with a very wide tail and not need so much fin to control the bastard.
http://www.youtube.com/watch?v=_JMosm-O-KY Thought you might enjoy this sami. its a vid of ted spencer shaping a small arc tail in 1969, looks similar to that board gg is holding above.
. [img_assist|nid=1062771|title=Fin Egg|desc=|link=none|align=left|width=640|height=480]I shaped this stubby thing last month, thought you might like to see it. its a flat entry to a pretty heavy vee in the tail. 6,3 by 22 and 3 inches thick.
Thanks for posting those boards guys have seen your beauty before proneman. wonder what it would look like in the size range I described.
Actually conacted Allan a while back before, he wasn’t availble for a custom at the time but very helpfull and informative regarding the design. Wonder what kind of rails he uses and what kind of transition there is in the mid or planning area of the board. Looks like roll topretty flat to vee blended with the channels.
I’ve gota copy of innermost limits of pure fun, great film and scene. Even more white kite spencer action in sea of joy! But I think he might have used to much roll in relation to the short rail line, that board needed a steep powerfull pocket to run according to Nat. Lower rails might also compensate for this, like Wayne’s stubbie, that surfed at Castles in Sea of Joy.
Chris Brock, Cundith and Greenough developed the tri plane hull which is basically the type of bottom my beloved Frye designed fishsimmons has, figured that the cahnnels would have a simmilar effect providing down the line drive and squirt of the bottom in contrast to all that roll. Why aren’t there any channelbottom stubbieshulls out there.Is it just because the are a bitch to shape and glass compared to concaves and brake easily. The channelbottm allthough not running as far up as the concaves on the triplane hull’s should aslo provide drive but more hold than the deep single to double concaves IMHO.
Maybe the channels shaped or combined with a panel vee for instance would work, basically ripping of MP’s MOTE baord but simply adding the channels. Bye the way if you are intrigued by this stuff ordr you own copy of Andrew Kidmans ether, book is also amazing.
One more question how come you don’t see that many stubbies hulls with wings, a single wing arctail channelbottom is floating around in my head and distracting me from work and family life.
“Channel / Hull Bottom** - The channel bottom consists of a series of flat planes (usually 2-8 in number) that are angled in a concave configuration. The main advantage to this design is that it directs waterflow down the length of the channel. Since the channels are parallel, the water isn’t being compressed as it is in the full concave. The channel bottom design provides the advantages of a full concave without the disadvantages of being stiff or tracking. The concave configurations of these planes contain and direct water down their length when a turn is made instead of letting water escape off the rail. More of the energy put into the turn is utilized and converted to forward thrust. As a rule, longer and deeper channels give maximum effect while short and shallow channels are more subtle.”
“Tri Plane Hull** - The tri plane hull was developed by Al Merrick and consists of a shallow concave on each side of the stringer that extends from the center of the board to the fin(s). Added lift is created as water passes diagonally across this contour, similar in action to water rushing over a stone in a stream. The effect of the tri plane hull is similar to channels but more subtle. Channels have more directional sense, producing more drive and projection out of turns, but the tri plane hull is quicker in leaning edge to edge.”
Channelbottom has more drive than the triplane but wont go rail to rail as fast according to the above, But am I correct that you can ge away with a wider tail with a channel bottom than a triplane…
Bingo! So true, that’s like giving MR credit for iventing the twinfin, like Merrick did with the triplane, they just refined and gave them more exposure.
Here is some more on Cundith and his stubbies and the ranch…
