CLOSE X

Foil Lingo, Know your parts

A very quick look at what parts make up the Foil. With lots of brand claims and information floating around here is a simplistic guide to Foil parts and why you might start choosing one over the other.

A very quick look at what parts make up the Foil. With lots of brand claims and information floating around here is a simplistic guide to Foil parts and why you might start choosing one over the other.

More to come!

  1. Mounting Plate/Fin Head:

Most use a Deep Tuttle Box Head making them compatible with most larger Slalom boards, Formula Boards and also some large Freeride Boards.

A few Brands have the capacity that you can shave down the fin box head or re-fit a shallow tuttle as another option.

  1. Mast:

Mast length varies greatly. Shorter masts are around 65-75 and the longest masts around 100cm in length.

The shorter mast has it’s benefits when learning. It gives more feedback quicker and the rider is never that high when crashing. Shorter masts have limitations at speed however and in rougher water.

The wings are much more likely to break out of the water with shorter mast lengths. In Kitefoiling change up and down masts are now quite common place.

Shorter masts are more compatible with narrower boards.

Masts are currently either made of alloy or Carbon.

Longer is also better for use on wider boards especially when looking to heel the board to windward.

 

  1. Fuselage/Strut : Compared to Kite Foils the struts tend to be much longer on Windsurf Foils. More length=more stability especially at speed. The further apart the wings the more stability you’ll have when foiling.

On some foils this can be a separate part to the mast, but on most it’s part of the main setup.

The longer Fuselage helps  in gybing.

Fuselage lengths currently range from 70-115.

 

  1. Front Wing:

Removable either through a allen key or cross head screw. The front wing is the main provider of lift. Two main types exist in Foils.

 

Low Aspect or High Aspect. High Aspect foils tend to be found more in windsurfing where as low aspect foils in SUP and Surf Foils. However WindFoiling front wings will still be on this scale.

The larger the front wing the more lift. Some manufacturers will supply up to three different front wings depending on conditions, which you then inter change.

Lower aspect front wings will work best at lower speeds, offering lots of lift but consequently drag. They may offer you the ability to sail a smaller sail earlier. Higher aspect wings will give much better top end speeds.

  1. Rear Wing (stabilizer wing): as with the front wing this is removable, however only a few manufacturers have a changeable back wing. The larger the back wing the more stability the foil will have, in both straight line cruising and also moves like gybing.

Back wing tuning could be used depending on performance you were looking for. For example a large front wing to back wind ratio would be better to Upwind , downwind performance. A large rear wing to front wing ratio better for reaching and a more even setup better for slalom. The angle of the back wing is tunable on some foils also to increase lift and or stability. Bigger back wings also increase gybe stability.