Frequently Asked Questions

Does the GoFoil really work on a SUP?
Yes, it really does! It works on regular surfing waves and also in downwind riding allowing you to foil/glide/surf on chop, swells, and bumps!
How does the GoFoil work?
Just think of the GoFoil as an underwater airplane. Point the airplane up, goes up! Point her nose down and she will go down! The key is maintaining speed and proper altitude. Get to the proper speed then “level off!”
What speed does the board need to get to before the foil lifts the board?
For average weight riders, the board and foil need to reach speeds of around 4­-8 mph. Heavy riders will need to get more speed and conversely lighter riders will need less. Riding regular surf (waves on shoreline) will be easier to attain a foiling position as the wave is helping you. Foiling position means the board will be off the waters surface.
Can I ride a GoFoil if I have no experience?
Yes! For first time foilers, We recommend to use a boat or jetski to pull you through the water at very slow speeds. This will enable you to get the “feel of foiling”. Weight back on the board will lift foil up, weight forward will bring nose back down. Holding weight forward after “Lift Off” is the correct position or train of thought to maintain a proper foil glide. After you get the feeling, Grab a Paddle! And if you do not have access to a boat or ski, just Grab a paddle!
How much does the GoFoil weigh?
About 6 lbs
Where can I Demo a GoFoil for SUP?
We are working on getting the GoFoil to dealers and stores. We will keep you posted. Please join on newsletter (form in footer)
Do I need a longer paddle?
You can use a longer paddle but it is not absolutely necessary. Kai Lenny in his videos so far is using his regular length paddles. When the board is high you have sufficient speed.
Is the GoFoil dangerous to ride?
Watersports are inherently dangerous. You should not operate a GoFoil if you are not prepared for its inherent risk. Keep the foil away from swimmers, paddlers, wildlife and submerged reef or rocks. It is always a good idea to be on the water with a buddy. Wearing a leash can keep you tethered to the board. All safety concerns with other watersports should be applied to foil boarding.
What happens is I fall off? Can I get back on?
Yes, just like any other board.
What is Covered by the Warranty?
This warranty covers any defects in materials or workmanship, including installation, with the exceptions stated below.
How Long Does the Coverage Last?
This warranty runs for six months from the date your GoFoil is shipped.
What is not covered?
This warranty does not cover wear and tear, fading or discoloration caused by exposure and use. Damage to parts from use or abuse is not covered. If you damage your foil we will work with you to replace the parts needed.
How To Get Service?
Contact any GoFoil dealer or use our website support page at
How Do I Put the Foil Into the Tuttle Box?
  1. Stand on the bottom of your board while wearing socks or barefoot, be careful to not scratch up your board, and stand one foot just in front of the Tuttle box.
  2. Place Tuttle head into the tuttle box evenly and start rocking the mast/strut forward and backward while putting steady pressure down onto the board. Grab onto the Fuselage of the foil while doing this. The steady rocking back and forth will slowly seat the tuttle base into the box.
  3. Lean board over to put in the bolts and tighten them.
  4. Turn board back upside down again and retry rocking and pushing mast into the board again to get rid of any looseness. Re-tighten bolts again. repeat until you are satisfied the Tuttle base is as tight as possible.

DO NOT hit the foil base into the board with a Rubber Mallet or anything else. If you cannot get the Tuttle Base into the Tuttle Box, sand the sides of the Tuttle base not the Tuttle box until she fits inside the box. Easiest to do this with a sander. Check video tutorial page for sanding the base.

Tuttle Box Placement for a GO Foil Brand Foil, Other Foils May Vary

Rough Guidelines to Tuttle box placements for different length boards: The measurement is made from the back opening of the Tuttle box or from the trailing edge of Mast on our plate foil to the tail of the board.

Check video for installing Tuttle box on out Tutorial Video page for more info.

Board Length Distance from tail of board
3′ to 4’6″” 1′ to 6″
4’6” to 4’11” 4” to 8”
5’0″ to 5’9 6” to 12”
5’10” to 6’6” 8” to 15”
6’7” to 7’4” 12” to 20”
7’5” to 8’6” 16” to 22”
8’7” to 9’6” 20” to 28”

Prone surfboards in general need the box further back than a SUP. This is because the lighter the board, the less lift you need to make and/or keep it foiling.

Think of your back foot on a prone board where you would like to place it when standing up into surf position. Generally, your foot will be close to standing directly on top of the mast when on a prone board or slightly forward of that position.

On a SUP, you can stand slightly aft of the prone position, so many stand on the trailing edge of the mast on their SUPs.

Box placement further forward creates greater lift and earlier planing but you will be standing further towards the nose to balance it.

Box further back usually helps the boards turn ability.

Lightweight riders need less lift and heavy riders need more lift so consider the riders size when choosing box placement.