Two identical boards w/ 50/50 hull type rails except: one has standard rolled hull bottom the other has same hull depth but instead of rolled it is in flat tri-plane configuration. All other dims equal.
Would the rolled bottom be a bit slower but hold in better on the face in hollow trim situations while they would be about equal in ease of rolling up on rail? And the rolled bottom would have much more of that ineffable magic drawn by the wave feeling?
Thank you
Go ahead and give it a try and report back to us. We’d love to hear how they compare!
I don’t know who does the “flat tri-plane” bottom. Liddle puts a flat area down the stringer but the sides are curved and the flat is only a few inches either side of the stringer. Seems like his older boards were more round on the bottom though.
The Andreinis aren’t like that? In the TSJ article it looks like it, but I know he could be roughing it out at that point.
As to the question, I would think roll is the wrong thing to put in the bottom of a board you want to stay up on a hollow wall.
Hulls love a high line! Greenough edge boards had the flat tri-plane
On a hollow wall? Are we talkin’ barreling?
Curved/round bottom Greenough spoons are “dragged” high up the face into the power. Tri-plane edge boards did the same when properly “tuned” with runners to add drag. Surfing waves is all about drag management - both increasing and decreasing drag to your advantage.
DrS - Carbon fiber/biaxial fiberglass/standard weave fiberglass epoxy resin vacuum-bagged. Molded from the edge board you saw. More pics at http://flexspoon.com/forum//viewtopic.php?topic=190&forum=6
liddle, pg etc, put tri-plane hulls in their boards . so if you are talking about a tri-plane flat bottom are you referring to down rails as oppsed to the round ones?
Thanks Flexspoon. Nice looking clone! So are you saying that the rounded ones hold in better and the tr-plane will tend to slide out w/out the runners?
Matt–definitely I am talking hull style, somewhat pinched, round rails w/ that bottom. Actually thinking of wooden alaia. Traditional often had roll underneath, some w/ rounded rails and some just left squared off… About to make one and thinking of a few tweaks. This is one of them.
The other is to scarf some wood on nose deck and shape in 2 or 3 inches of rocker and spoon out the deck to try to keep the weight balanced. Make it a bit more user friendly on the steeper transitions… hopefully without loosing anything?