North Sonar UHM Carbon Mast

North Sonar UHM Carbon Mast

Prone Surf / Pump / Downwind

Sizes: 73cm (730mm)

When you want to push your performance in unpowered foiling disciplines, the North Sonar UHM Carbon Mast delivers clean glide and quick turns. Its ultra-thin profile cuts through the water with reduced drag, so you'll experience more efficient pumping and immediate responsiveness under foot. Whether you are connecting ocean bumps or carving prone waves, you'll feel the added control from increased torsional stiffness. Add the North Sonar UHM Carbon Mast to your foil setup for high-speed efficiency on every drop.

What North has to say:

The UHM73 has our shortest chord length – 100mm – this minimises the lateral surface, reducing drag and increasing manoeuvrability. This in turn will give you greater glide, more efficient pumping, and quicker turns.

The UHM73 favours disciplines without wind power - prone surf, pump and downwind.

Who is this for?

Riders targeting unpowered foiling disciplines such as prone surf, pump foiling, and downwind runs who require low drag, tight carving ability, and maximum pumping efficiency.

Design Profile:

Impressively thin and fast hydrofoil mast optimized for minimal drag and dynamic pumping power.

Performance Features:

• 15% thinner profile to reduce hydrodynamic drag
• Increased bending and torsional stiffness for direct input and response
• 100mm chord length to minimize lateral surface area and maximize maneuverability
• Optimized design for longer glide and efficient pumping

Tech Specs:

• High Modulus Prepreg Carbon Construction - Provides maximum stiffness and response while maintaining a lightweight structure.
• Reduced Drag Profile - Features a 13.5mm minimum thickness and a compact 100mm chord length to cut through the water smoothly.