Chinook PowerPlate Foil Box Adapter

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  • Chinook PowerPlate Foil Box Adapter
  • Chinook PowerPlate Foil Box Adapter - Deep Tuttle
  • Chinook PowerPlate Foil Box Adapter - Tuttle
  • Chinook PowerPlate Foil Box Adapter - Power Box
  • Chinook PowerPlate Foil Box Adapter Measurement


Chinook PowerPlate Foil Box Adapter

This unique product allows windsurfers to convert existing boards to be windfoil capable boards. The PowerPlate makes it simple to bolt any windsurf board with a Power, Tuttle or Deep Tuttle fin box style to the common 4-Hole plate pattern found on pedestal mount foils. Pedestal mounts can also be purchased separately for many AL foil brands (Slingshot, Progressive...). The over-sized plate area disperses the foils load over a large area of the bottom of a board. This minimizes fin box and hull stresses that windfoils place on non-foilbox windsurfing boards. It is a great way to make your windsurfing boards more versatile.


  • Choice of box type: Power, Tuttle or DT.
  • 2-pc Solid Aluminum construction.
  • Made in USA.
  • 6 mm threads on all box types (standard on modern boards).
  • 3/16" foam padding against bottom of board.
  • Requires Pedestal mount for foil attachment (not included).
  • Fore and Aft foil placement positions.
  • Includes 4 stainless mounting screws (for Pedestal attachment).
  • Supports large area around existing fin box.
  • Fore & Aft fine tuning can be done with the multiple mounting hole system,

* Forward = quicker lift, Backward = slower lift

User Instructions:

Be sure to use a Metric 6mm fin-bolt.
Be cautious not to cross-thread the fin-bolt.
Be sure to get a least 12 complete turns into the PowerPlate. (Max # of turns is 16 or 3/4"). You may need a longer screw.
Be certain to tighten the fin bolt hard enough to compress the foam. Check & tighten as needed.
If your board has a big V-bottom, add extra foam to outer plate edges to add lateral stiffness.
* Use a leash regardless of your foil/fin-box setup. Impact with a log or other or bottom - could cause your foil to sink.
Adjust the head or plate mounting bolts to your preferred fore/aft position.
Wing Forward=More lift.
Wing Rearward=Less lift (better learning)

The PowerPlate has a 12 month warranty against manufacturers' defects. This does not include damage from impact or loss/damage to your foil or board regardless of impact or not.

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3 Reviews

  • 1

    it moves

    Posted by Lidan Prisant on 7th Jan 2023

    it moves in Bedn's it makes Dinks on the board

  • 5

    Good solution

    Posted by Tomas Lic on 26th Apr 2021

    This worked great to add foil with plate to my old Mike's Lab race board. I am able to use it for winging now.

  • 3

    Is not really compatible as-is with Armstrong Foil

    Posted by Richard Genet on 27th Jul 2020

    This would have needed modification to be used with the Armstrong carbon foil.

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