In November 1995 I bought a GFC wave-slaom fin for my Tuttle-box=20
Copello. The fin was assembled by the local shop, Ocean Wind as per=20
GFC's instructions, using the GFC kit.
I sailed the fin two times before I went on a 2 month=20
sailing trip down to Baja. When sailing in Baja, I noticed pronounced=20
spin-out when sailing with that fin. I did not have such pronounced=20
spin-out when sailing other boards or when sailing the Copello with other=
fins. When inspecting the fin, I noticed some play between the G-10 part=
of the GFC fin and the adaptor. I also noticed hairline cracks in the=20
epoxy area around my finbox.
AS my trip progressed and as i logged more sailing time, the cracks=20
became progressively worse and I had the fin professionally repaired at=20
La Ventana. I also had the fin-box on my board repaired. This corrected=
both the spin-out and, so far, has prevented further cracks around the=20
I have written a letter to GFC detailing this incident and my local shop=20
has forwarded the letter to GFC. However, I still await a response. The=
letter was written in March of 1996.
I suspect that your adaptors are defective. Another GFC owner in=20
Victoria has had the same problem with his fin and remedied the problem=20
in the same manner as I, by assembling the fin with epoxy. This has=20
ensured a rigid fin - fin adaptor assembly.
I also suspect that the defective adaptor caused the fin-box cracks. I=20
believe that the play and looseness of the fin in the adaptor caused=20
excessive stress of the fin-box resulting in stress cracks around the=20
If I am wrong or my assumptions are incorrect, please let me know. At=20
minimum, I would like some sort of response.
Obviously, this incident cost me money. More importantly, the GFC=20
adaptor, which I believe to have been defective, caused me a lot of=20
inconveniance. i'm sure you can understand my frustration.
Hopefully the Curtis fins you mention do not have the same adaptor as the=
> The first ever line of Curtis precision molded production fins are
> available for immediate delivery. The hand laminated lightweight C-13
> carbon composite fin come in Tuttle, Power, and Power Trimm boxes. These
> Curtis Fins are the racer=92s and serious sailors choice.=20
> All sailors will notice an immediate difference with a Curtis Fin. The
> board will ride smoother, go faster, point better, and not spinout.=20
> Bill Kline
> Gorge Fin Connection (GFC)
> Curtis Racing Fins
> 1240 Tucker Rd.
> Hood River, Or. 97031 USA
> ph: 541 387 2649
> fax: 541 386 1715