McCoy Gull Wing Fins

After years of research and development McCoy is now proud to be releasing our new range of superior fin designs.

Tested in all wave sizes and conditions with out standing results, It is now possible to obtain 3 different style of surfing.

Single Fin Placement

THESE RECOMMENDATIONS ONLY APPLY TO GEOFF McCOY DESIGNED AND SHAPED SURFBOARDS AND FIN DESIGNS

There is an increasing interest in the single fin design once again, which brings with it lack of knowledge on their overall performance and capabilities.

With all my single fin designs, I include a 10” box which allows removal of fin from the box and movement laterally when fin is in the box.

Having these capabilities gives the board a greater range of performance options.

This is my recommended starting position for my 3 Gull Wing design fins.

Start out by placing the back of the base of the fin 7 1/4” or 18.50cm from the back of the board (tail)

Depending on the feeling with the fin in that position, you may need to move the fin forward or back in 1/2” or 10mm gradients to achieve the feeling you want

By moving fin forward
It will decrease drive and increase the manoeuvrability
By moving fin back
It will increase drive and stiffen manoeuvrability

Gull Wing Single Fin Position in Box

fin placement2

If riding the board in waves over 5’, it may be necessary to push the fin back even as far as the back of the box, this gives the board better hold, drive and control in the larger waves.

McCoy Fins

Gull Wing and other long tip short base fin designs.
Concept to get the drive factor down in the water not at the base of the fin but in the tip area.

This enables the plan shape of the fin to remain narrow over all but still retaining good area in the tip.

There are many advantages in using these designs by reducing base area it allows the fin to turn quicker because the area has been reduced it also takes the need for the board to run longer arcs allowing quicker shorter turns, so by moving the base area of the fin up into the tip area by extending the length of the tip of the fin you get the length and area to drive off with greater affect as it is deeper in the water giving the pendulum effect while still retaining the narrow plan shape which gives less drag, especially in hollow waves as there is less effect on the narrower plan shape as the water spirals around your board in the hollower more critical parts of the wave with great intensity, because of this the board can surf deeper in tubes while still allowing the surfer to be in control the board.

McCoy Ben Lexcen Fin Disclaimer

This statement is to inform people that the Ben Lexon designed keel fin is in no way my fin of choice. I do not recommend it to be used in any of my Geoff McCoy designed surfboards.

Never have I had any involvement with the design and I certainly have not and do not recommend its use in a surfboard.

The original Lazor Zap fin is a refined Dolphin fin design. In recent years I have developed and recommend my Gull Wing fin.

My Gull Wing has been designed specifically for my wide thick tail single fin boards and has proven itself to be extremely efficient and a very reliable performer in a wide range of wave sizes and conditions.


fin1The Gull Wing Straight Tip
This fin is very user friendly, good hold with smooth flowing arcs, good for more vertical surfing.
 

 

fin2
The Gull Wing Original
This fin gives amazing holding and driving capabilities; the forward knuckle at the front gives extra hold and drive.
     

 

fin3
The Gull Wing Extended Tip
This is great for long arc surfing smooth and flowing with amazing hold and control in the roundhouse cut backs.
     

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