>>1933479>are those fins essential only for turning?Not exactly.
>can boards with center fins just glide forward?Also not exactly. a very long fin can work too.
There's actually a lot of science in this.
I'm not going to draw more pics, but imagine in
>>1933180 the top board. It's actually using the RH side of the board as the cutting edge (Surface area in water) for support, and the RH smaller actual fin to stop it slipping down the wave.
You're riding on an unstable V basically.
I need to drink less beer to explain this.
I'm not a physicist, but it's been explained to me by one, and he put what I inherently understood into formulas and into even simpler English which helped me nail shit.
He got into xx rocker and 25deg lateral lean with 75mm fins @ xx behind COG = 5 deg vertical carve on a 45 deg wave, because something @ ctr of fin average depth @ width @ speed something ...
Fuck mate, I swear this guy could repackage this shit so we could all understand it.
If we were in the water together, I could show you, but my my explanation would be "do what I'm doing".
It was pretty funny, I lived with a couple of surf/kayak guys that were heli pilots with a whiteboard.
This guy would have them slack jawed and confused after 5min. I'd just drink beer and ignore them.
Then he'd say "Righto cunts, you wanna carve hard, move COG here, drag there, this angle...."
He was like Goodwill Hunting/Rainman shit. Sometimes he's say "fuck it, I'll just show you" and with basically no experience, he'd rip it up based on theory.
Anyway....
You could go forwards fast, but only for a bit.
>Just get the fins mate. What country are you in? I'll buy the fins if you're here, and kayak with you while you feed the sharks.
while writing this I've called a couple of mates, and it seems none of us ever asked his last name, and most recent contact was at least 3 years ago.
Will do my best to get him to send info.
