HYDRO _FOIL RACE
The HYDRO foil race board program delivers scale-tipping performance through inventive technology and precision engineering. Designed for maximum speed and ultimate control across all foil racing disciplines.
The HYDRO’s outline and shape relentlessly target drag reduction. A minimized deep cockpit offers ultimate control in gybes, tacks, and high-speed runs. The convex-flat deck provides constant laminar airflow, stabilizing the board in flight for “autopilot” level control.
Deep, pulled-in cutouts with secondary step features deliver slick release at takeoff and minimized touchdown drag. The result? Advanced buoyancy, explosive acceleration, and unlimited air boost.
KEY FEATURES:
/ Lower profile for enhanced air penetration and reduced drag
/ Deeper cutaways for faster planing and cleaner touchdowns
/ Thinner nose for improved aerodynamics
/ Lower standing position for maximum control
/ Modified 6mm deck pads for precise foot feedback
/ Additional strap insert options for personalized stance
/ Refined layup for maximum strength-to-weight ratio
PERFORMANCE GEOMETRY:
/ Convex-flat deck promotes continuous laminar airflow
/ Ultra-low mast track reduces leverage between sail and foil
/ Reduced overall volume aligned with modern efficient foil designs
/ Significantly lifted V section for enhanced flight stability
SIZES 84 / 78
HYDRO _FOIL RACE
The HYDRO foil race board program delivers scale-tipping performance through inventive technology and precision engineering. Designed for maximum speed and ultimate control across all foil racing disciplines.
The HYDRO’s outline and shape relentlessly target drag reduction. A minimized deep cockpit offers ultimate control in gybes, tacks, and high-speed runs. The convex-flat deck provides constant laminar airflow, stabilizing the board in flight for “autopilot” level control.
Deep, pulled-in cutouts with secondary step features deliver slick release at takeoff and minimized touchdown drag. The result? Advanced buoyancy, explosive acceleration, and unlimited air boost.
KEY FEATURES:
/ Lower profile for enhanced air penetration and reduced drag
/ Deeper cutaways for faster planing and cleaner touchdowns
/ Thinner nose for improved aerodynamics
/ Lower standing position for maximum control
/ Modified 6mm deck pads for precise foot feedback
/ Additional strap insert options for personalized stance
/ Refined layup for maximum strength-to-weight ratio
PERFORMANCE GEOMETRY:
/ Convex-flat deck promotes continuous laminar airflow
/ Ultra-low mast track reduces leverage between sail and foil
/ Reduced overall volume aligned with modern efficient foil designs
/ Significantly lifted V section for enhanced flight stability
SIZES 84 / 78
SPECS
| WIDTH | LENGTH(CM) | VOLUME | THICKNESS (Cm) | WEIGHT (KG) (+/- 5%) | FIN BOX | RIDER WEIGHT (KG) |
|---|---|---|---|---|---|---|
| 78 | 208 | 140 | 13.7 | TBC | Foil box Deep Tuttle | <85 |
| 84 | 208 | 158 | 14.5 | 8.08 | Foil box Deep Tuttle | <95 |
Weight tolerance; (+/- 5%)
PERFORMANCE GEOMETRY
CONTOURS
A convex deck shape promotes laminar airflow for longer over the board. This is notable during flight.
The high volume and length increase the mass inertia and stabilise the board in the air giving you “Autopilot” level control.
Cutaways help reduce the waterline, making takeoff and touchdowns more efficient.
The high rails give the rider more leverage when canted over to windward and this increases righting moment + forward drive.
PERFORMANCE GEOMETRY
CONTOURS
A convex deck shape promotes laminar airflow for longer over the board. This is notable during flight.
The high volume and length increase the mass inertia and stabilise the board in the air giving you “Autopilot” level control.
Cutaways help reduce the waterline, making takeoff and touchdowns more efficient.
The high rails give the rider more leverage when canted over to windward and this increases righting moment + forward drive.
“The gains in stability means you can ride the same
board in higher winds with less in-flight drag and
thus higher stability. This gain is equally notable
in light wind conditions.“
“The gains in stability means you can ride the same board in higher winds with less in-flight drag and thus higher stability. This gain is equally notable in light wind conditions.“
PERFORMANCE GEOMETRY
HAPTIC SENSE
Ultra Low mast track reduces the lever between centre of effort in the sail and foil and therefore increases forward drive and thus speed.
The tail bump on the deck has two purposes;
/ Gives you a 6th sense when gybing so you
can always find your balance.
/ Provides foot support to pump off when
taking off in lighter winds.
PERFORMANCE GEOMETRY
HAPTIC SENSE
Ultra Low mast track reduces the lever between centre of effort in the sail and foil and therefore increases forward drive and thus speed.
The tail bump on the deck has two purposes;
/ Gives you a 6th sense when gybing so you
can always find your balance.
/ Provides foot support to pump off when
taking off in lighter winds.
Who is the Hydro for?
If you own a free-race or race foil setup, this is the board you need.
Is the Hydro built for any specific foil?
The Hydro is compatible with any freerace-race foil, we’ve specifically designed the inserts of the footstraps and mast track to give a huge range of setups. This also means as the foils evolve and setups change, you can always tune the board exactly as needed.
Why is the hydro longer than other boards?
The longer length has multiple purposes, starting with stability, if you’re pushing speeds above 25 knots you need longitudinal stability. That comes from increasing the mass inertia and gyradius of rotation. Greater mass inertia = damped oscillations. Damped oscillations = less movement = higher speeds and control.
The length also reduces the violence of catapults. Boards that are too short can cause serious injury from heavy touchdowns. If the nose does not have length and volume or length to support a heavy touch down it will partly submerge and cause ultra rapid deceleration often leading to severe whiplash injuries and broken equipment.
Another benefit is it allows us to control the airflow over the board onto the rig, having a smoother transition to the rest of the board creates less air pressure build up at the nose and allows you to accelerate.
With the Slalom Hydros, having higher top speeds on the reach is the highest priority.
Which sail can I use on the Hydro79?
Hyperglide from 5,0 – 8,0 work well, along with freerace sails.
Where is the ideal mast track position?
You should tune the board to feel balanced at max speeds, where to put the mast track will depend on your foil and rig setup. But just keep the basics in mind, start in the middle and move forwards or back 1cm each time until your board is perfectly balanced at top speeds.
Where should I place my foot straps?
Start in the middle holes, if you feel you need more lift move them back 1 at a time. if you feel you have a very powerful foil and you need to have more weight forward, you can move them forward 1 at a time.
On the back strap, you can choose between an outboard powerful setup or an inboard control setup. We would recommend starting with the outboard position and if you feel you need to take your back foot out on the reach due to being overpowered, you can move it to the control position inboard.