Forums > Stand Up Paddle   Board Talk & Reviews

C drive fins

Reply
Created by Bighugg > 9 months ago, 30 Oct 2017
cbigsup
431 posts
12 Oct 2020 6:52AM
Thumbs Up

Quobbas do NOT work well in a twin fin setup..

estingo
37 posts
15 Oct 2020 1:54AM
Thumbs Up

Interesting take cbigsup, and it might be true, I'll try your theory in my fish to replace them for my keel fins. My experience is that the Quobbas work well in Thruster and quad set up so I'm not so sure why they shouldn't be working in a twin fin setup.
For now my fastest set-up I have tried so far was the one that Colas explained with the Quoabbas, 2 large in the front, and to medium center fins in the back.

colas
4001 posts
Thursday , 15 Oct 2020 1:25PM
Thumbs Up

It is just that the Quobba are not big enough to be used as traditional twin fins, you will not get enough holding surface for most people. Especially if your fin boxes are quite forward. estingo, you may want to try with the two L in the rear boxes, if you spin out too much when placing them in the front boxes.

I guess they could work for lightweights however, or just if you are OK to nurse a bit your turns or use more the rails in turns. The low size of the fins should give you even less drag, so a faster speed in exchange for less hold.

estingo
37 posts
Thursday , 15 Oct 2020 4:47PM
Thumbs Up

Select to expand quote
colas said..
It is just that the Quobba are not big enough to be used as traditional twin fins, you will not get enough holding surface for most people. Especially if your fin boxes are quite forward. estingo, you may want to try with the two L in the rear boxes, if you spin out too much when placing them in the front boxes.

I guess they could work for lightweights however, or just if you are OK to nurse a bit your turns or use more the rails in turns. The low size of the fins should give you even less drag, so a faster speed in exchange for less hold.


Thanks Colas for the option, if I had FCS fin boxes was it possible to try but my board has future fins so I bought the Quobba's with a future template. With the holding surface of the quobba compared to traditional keelfins is also a difference but the surface of an L size isn't that much smaller than the traditional fins so I'm not quite sure if the theory is correct.

I'm around 80kg and it's true if I use the smaller fins would that be an even faster setup, but as you said I will loosen it up completely with smaller fins and I like the bit of extra hold from the large fins.

anyway always a good discussion point for what works preferably the best for each and every other person's surfability

colas
4001 posts
Friday , 15 Oct 2020 11:52PM
Thumbs Up

Twin fins are bigger in surface so they hold better, but also have a longer base, so they add stability in turns.

A standard base length like on the Quobba means that they will be very sensitive to the rear foot placement: put the rear foot behind the fins and the board will oversteer and kill its speed. The longer base of twins or keels, or the rear fin(s) of a Thruster or Quad enlarge the "sweet spot" for the rear foot push.

C-Drives, on the other hand, are very nice to use as twin fins or Simmons keels as their wide base helps a lot.



Subscribe
Reply

Forums > Stand Up Paddle   Board Talk & Reviews


"C drive fins" started by Bighugg