NORTH Sonar UHM80 Mast

Foil Drive | NORTH Sonar Integrated UHM80 Mast

1.479,10 €

For greater glide and quicker turns, the North Ultra High Modulus Carbon Foil Drive Mast is 25% thinner and features a 14% shorter chord length than the AF80 FD Mast. This almost eliminates drag and significantly increases manoeuvrability, so you’ll accelerate faster onto foil and experience more efficient glide once you’re up.

The UHM Mast features a state–of–the–art monocoque design, with the motor pod seamlessly faired into the mast 18cm from the baseplate – the perfect balance for Assist with the propeller submerged, yet high enough to avoid interference when you’re up on foil. At 80cm ride height, it’s ideal for assisted prone surf and downwind foiling, with minimal battery consumption. 

Estimated delivery dates: Dec 6, 2025 - Dec 11, 2025
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Description

 

Technical specifications:

  • 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
  • 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
  • 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

Compatible With:

The Mast is compatible with both the V2 Standard Motor and the HP Motor – so if you already own a Foil Drive and your existing motor has the V2 plug in the back, you’re good to go.

Note: The motor pod is fixed into position on each mast and the position cannot be removed or changed. Fully internal wiring connects to the Foil Drive system.

We recommend pairing the UHM80 FDA18 Mast with the Integrated Mast HP 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.

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