ULTRA UHM80 FDA18
Carbon Foil Drive Integrated MastFeatures
- Ultra low-drag for electric-assisted riding with minimal battery consumption
- Strong and light monocoque mast design for hydrodynamic efficiency
- Motor Pod seamlessly faired 18cm from the mast base, the ideal compromise between propeller immersion for assist and clearance when foiling
- When combined with the Boost trench, the Motor Pod is 4cm closer to your feet
- Foil Drive Puck pre-installed into Motor Pod with integrated wiring
- Extreme torsional and bending stiffness for direct power transfer
- 80cm mast length performs across all disciplines and excels in surf
- 108mm Chord Length provides increased manoeuvrability for faster turns
- 13.5mm Width - 25% thinner than AF80 FD Masts
- Reduced drag for increased run time
- Faster acceleration onto foil
- Enhanced glide and efficient pumping
- GeoLock tapered geometry locking system for optimised load-bearing connection
- Recommended with Sonar Pro Carbon Fuselage
- Compatible with V2 High Power or V2 Standard Motor System (sold separately)
Materials
- Ultra High Modulus Carbon
“If there’s one upgrade you should invest in for your Foil Drive, I’ts not a battery or a trench, it’s the UHM Carbon Integrated Mast. It feels slippery, responsive, frictionless. It almost eliminates drag and changes everything about the way you ride.”
Mike Raper
Size Chart
Your recommended Foil Assist Setups
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North | Foil Drive
Electrify your Ride
We’ve teamed up with Foil Drive, the inventors of the electric Foil Assist, to integrate Foil Drive technology into our Sonar UHM80 and AF80 Masts for electric assistancehydrofoiling with minimal drag, improved ride feel, and enhanced efficiency.
Foil Drive System + Sonar UHM FD Mast + North Sonar Foil
The Foil Drive Kit fits onto your foilboard’s mounting track to power the motor. It includes a hand-held controller and can be purchased from a Foil Drive retailer with your Sonar FD mast. The Sonar Front Wing/Fuse/Stab for your foiling setup is available from your North retailer.
COMPATIBILITY
The UHM Mast is compatible with both the V2 Standard Motor and the V2 High Power Motor - so if you already own a Foil Drive and your existing motor has a V2 plug with removable cable, you’re good to go. We recommend pairing the UHM80 FDA18 Mast with the Integrated Mast High Power Motor Set (SKU FD255; includes Stator, Motor, 3-Blade Propeller, 1x Stubby Cooler Propeller Cover). The HP Motor Set is sold separately or available as a complete set together with the Mast from Foil Drive.
Note: The Motor Pod is in a fixed position on each mast and cannot be removed or changed. Fully internal wiring connects to the Foil Drive system (sold separately by Foil Drive). The Integrated Masts require the complete Foil Drive Kit to operate. Masts and Kits are available separately from Foil Drive. The Sonar Front Wing, Fuselage and Stabilizer are available separately from North.
RECOMMENDED FOIL DRIVE SETUP
