Surfboard Concaves (Bottom Contours) explained Part 2
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- เผยแพร่เมื่อ 13 ม.ค. 2019
- My attempt at explaining some of the basics of Surfboard bottom contours.. Complex as the basics are :-)
www.boardcave.com/the-surfers...
www.degree33surfboards.com/bl...
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www.swellnet.com/news/design-... - กีฬา
Superb! Thank you for taking the time to share this. It’s been so helpful to understand how boards work.
Good explanation. Thanks.
Glad it was helpful!
Aloha and Thank you for helping me understand the bottom of my alaia board which is concave..
Thanks very much appreciate the support :-) Tom Wegner is is a an to look up on Alaia style hull design he's a bit of a legend. Aloha :-)
Fantastic stuff! Very helpful!!!
Cheers mate :-) Appreciate the feedback and support
great stuff mate! it defo helped to get my head around the bottom contours. 🤙🏻
Cool mate glad you enjoyed it good to have you on board :-)
Keep it up mate, love your channel and one of the few surf ones putting up new content. I learned a lot in this one!
Thanks mate.. Really appreciate your support.. Explaining concaves is a tough gig :-)
Trying not to buy so many boards this year but have a seaside and a Lost RNF retro on order so they will be coming up in the coming weeks / months :-)
The egg I shaped I decided to go; single to double to a slight V. Surfing on Saturday for the real review. We finally got a ground swell here in in Central Florida.
Buy a Jet Bottom and give a review. I will love to shape one like that but don't have the disposable cash in case I screw up.
Lol sounds like fun but I am also not sponsored and pretty broke after last years more than excessive board numbers :-(
Thanks
Your welcome :-)
Say I have identical 9'4's okay one of them has single all the way through and the other one is flat all the way through which one will be faster?
I wouldn't take my word for it as I'm no hydrodynamics expert but in my personal understanding of the theory the one with the single is flattening out the rocker more, making a straighter path for the water to pass through and creating more lift so should go faster. The Flip side to that is the concave adds more surface area side to side so creates a little drag in that direction over the flat bottom... I Have personally flat and concave bottoms that go well. I think it's a lot to do with how the concaves do or don't compliment and work with or go against the all the other many elements of the boards design.. If you read some of the stuff online they suggest that Flat bottom has neither the advantages of Vee or Conves Nor the advantages of concave to they are less common.. I guess a completely flat bottom with on fins would be about as fast as you can get but you wont have control or the ability to turn :-)
It's definitely important to think of some of these things in terms of how the concaves or convex bottom shapes alter the rail or stringer rocker. I also think the way surfboards work is so dynamic compared to a boat going in a stright line or at a similar angle it's never really had all that much analysis done since the more advanced software has been available. People still use what they know and consider to work as opposed to all of the theory being proved beyone any shadow of a doubt. Some things definitely work like vee and concave I have never disliked a subtle single, double Vee on most boards I have made with them.