F4 SR Hybrid Mast

For nearly two years, the SR Mast Project has been one of the most ambitious
undertakings in F4 history and undoubtedly the largest research and
development investment we hove ever mode.

The potential of hybrid mast architecture was impossible to ignore. The results
seen in high performance Moth racing demonstrated new path forward for
hydrofoil design but weight, safety cost and compliance with world soiling
regulations presented challenges that could not be overlooked. Our mission
became clear: deliver the geometry„ drag reduction. and wetted surface area
advantages of a hybrid mast in the most elegant, practical and accessible
package possible.

The result is the SR.

Built on the some groundbreaking architecture of our race proven 10B Hybrid
Mast the SR represents a fundarnenüal shift in haw hydrofoil interacts with the
water and, more importantly, how a rider interacts with the foil.

While the speed and efficiency going are remarkable, whal truly drove our
excitement throughout development was sornething much harder 10 measure.
hé SR 10 experience your loil in o WOY thOL Itoditionci designs
simply cannot.
BY dramatically reducing the -rudder effect erected by conventional magt
profiles, Lhe SR creoles a more direct oand natural connection between rider ond
foil. Turns become cleongru Transitions become smoother. The foil responds with
o level of freedom thot feels almost unreal. The sensation ig immediate. ond
once experienced, impassible to forget.
The result is what riders often describe a true -mogic carpet- ride An unedited
connection Lo lhe loil. Pure glide. Pure feedback. Pure enjoyrnenl.
he oenefitgutend for beyond feel alone. The SR's LjniqLjg geometry significantly
reduces drag and wetted surface area, helping riders conserve energy during
long downwind runs, occelerate mare efficiently. and maintain gpged Ihrough
powerful carving Whether your gool is t'"OXimj-jm efficiency or mokimum
fun, the result is lhe same: longer rides, less fatigue. and o level of performance
that Changes your ekpeclations 01 whol c foil can do.
During testing, one thing became increasingly clear. The impact Of lhe SR is not
inetetnentol. The shift we esperiencgd with introduction Of our AX Skinny Most
series nearly two years ago was significant. Out the SR takes IhaL evolution to on
entirely different level. Every rider who hos spent time on cn SR prototype has
comg OOCk with the reaction: it fundamgntolly• Changes the WOY foiling
And then there tne visuo' impact.
An g mm wide magi does not go unnoticed. Arrive at the beach with an SR cnd
chonceg ore you'll spend more time onsweting questions than getting to thg
water. appearance is striking, but what Ituly leaves an impression is what
happens once you start riding-
The SR is more than a new mast.
is the next Ironlierol hydrofoil design.