Greenough fin on stubbies or hulls. What fin size?

Dear folks,

I already built a tribute board to G. Greenough, let’s say something very similar to original '70 stubbies or hulls.

My board actually is 6’1’’ and I’d like to use a Greenough 4A (true ames). What kind of size do you suggest to use with my 6’1’’ board?

I am thinking about 9’'. What do you think?

Moreover, basing on your experiences which is the board’s size range that could mount a 9’’ fin? From 6’1’’ to ???

Thanks a lot!

Depending on the deepness of your hull, you also might want to look at the 4c. Less base area, so it might go better in transition back & forth across that hull.

9" sounds good, pretty much up to 10’.

Thank you Benny.

Just what I was searching for.

bye.

if you are making a stub hull you will want use a flex fin the greenough fins are to stiff and won’t give you that loaded up twang out of turns that you want on hulls just my opinion.

the greenough fins have a nice little spring in 'em…but nothing beats a Liddle L-flex!

The new volan Liddle fins from Aims are REALLY nice. Greg and Chuck have been workin on this for a while, the fins flex more evenly, not just at the tip. By the way when checkin a fins flex DONT grab it crank on it with your thumb as hard as you can, it dosnt help the life of the fin.

Prase, how wide is your tail?

well,you can use that 9" 4a.it will provide heaps of drive.problem is the ones ames make aren’t quite thick enough or foiled right.remember, th fin on greenoughs spoon was a good 10" but it was thicker and foiled a little different.that fin worked, in part,because of the hull depth. inkow PG made a 6’ deep-hulled greenough type hull stand up board and i believe it crancked using a 9.75 4a fin…best thing is to get a 4a, 4c and an l-flex-all 9" and play around with them. you will learn a lot that way…

Thank you all so much for your hits.

Now the entire thing begin to be clearer.

Besides the obvious templates’ differences between 4a and L-flex which is the main difference while in the water?

If I undestood well the more the flex the best the fin will be on stubbies?

we made this hull the best as we could trying to make a Greenoough tribute board and of course an original Greenough fin sounds quite good.

Matt: do you really think that a 9.75 or 10 inches fin will perform better?

I guess a shorter fin, let’s say 9’', will give me more turning capabilities, am I right?

15’’ (1 feet)

9’’ 3/4 tail

Follows a pic of the “greeno”:

say if you like

bye

Quote:

Prase, how wide is your tail?

nice board – can you post a profile pic?

nice looking board get the fin that you think you might like and as you ride the board more refoil it ever so slightly till you find the feel you want fins are not some voodoo art they require constant fine tuning to get a new feel as they change due to constant stress.my personal thoughts are if you can shape that nice complete the package a make your own fins aloha…

OK! now that I see the board IMHO a 9’’ L- Flex or 8’’ GG4A. Nice board, the color looks like that fake barf I used to have as a kid.

ditto what KP said…

I rode that fin for the first time yesterday in my light weight hp singlefin and really liked it. Engaging early and finishing longer than my usual stiffies. The low tide peelers that were a perfect fit. Try it, and others, life’s simple pleasures!