Long foil box insert – cassette for Down Wind Foil board, sup, surf and wing (Free Shipping)

Bomber Foil board long box insert in high density foam in black.  Used in Downwind foil boards and regular foil boards that need more variation on foil placements.

Perfect for converting an existing board or for a new foil board.  Ideal for down wind foil boards that need a little flexibility on foil placement.
This 2 track high density foil box is composed of precut PVC insert and 2 large 17″ (15 & 3/8″ opening) fin boxes. Oversize fin boxes to adjust foil mast and larger openings for the larger manufacture mast hardware. PVC is CNC cut for perfect fit. 1750 lb rating

STOCK DIMENSIONS

Foil box fin system spaced at industry standard 3.50″ [90mm] apart on center to accept the foil mast base plate.

Size:  Cassette 20.5″ long x 7.5″ wide x 1.58″ thick.  Boxes 17″ long (inside opening 15.375″)
PVC (density 70 kg/m3)

How to install a surf foil high density mast insert:

1. Center the foil on the board at the propoer location (See suggested placement below). Trace the insert and route for a snug fit. If there’s play in the box install lay pieces of fiberglass or carbon in the hole to take up space and provide more support.
2. Install the insert with epoxy resin, tape over the finbox slots so resin doesn’t get in and laminate a patch of fiberglass or carbon over the insert and the bottom of the board. If foam is lightweight foam use Gorilla glue to expand. Make sure you add a weight to the top so it does not move. Scrape excess away.
3. Cut through the reinforcement with a razor blade to remove the tape when the resin gels (about 45 mins – 1 hour).
4. Tape over the finboxes again and sealcoat with epoxy resin

General Installation Specs from Foil Track Mount. Specs’ are based from the end of tail to the centre of the box. Please note foils are ridden directly beneath the rear foot.
Suggested dimensions – Board length Distance off Tail for regular foil board.  Use different chart for DW foil boards
5’0 – 5’9 8 – 12″
5’10 – 6’6 10 – 15″
6’7 – 7’4 16 – 20″
7’5 – 8’6 18 – 22″
8’7 – 9’6 23 – 28″