Razor 847-345-75 Blackbird Kit - Integrated Stabilizer

The Razor 847-345-75 Blackbird Kit is a complete high-performance hydrofoil set, featuring a high-aspect front wing and integrated stabilizer, designed to offer exceptional glide, super high pumpability, and great efficiency in downwind and prone surfing. The Blackbird carbon structure ensures fluidity, speed, and control, transforming every pump into real forward motion with minimal effort.

Thanks to its unibody construction and optimized profile, this kit provides a continuous and connected riding sensation, ideal for those seeking a fast and smooth foil to surf waves, bumps, and swells with great precision.

Key Strengths

• High-aspect front wing with endless glide and great planing efficiency.
• Surprising pumpability relative to size and wing surface area.
• Integrated Progressive 345 stabilizer for fluid control and immediate feedback.
• Blackbird 75 UMH W-Core mast for extreme rigidity and quick response.
• Unibody carbon construction: less flex, more precision, and quietness.
• Excellent for downwind, prone surfing, SUP foiling, and advanced wing foiling in wave conditions.

Who Is It For?

• Intermediate–advanced riders looking for maximum glide and efficiency in downwind and prone surfing.
• Foiling enthusiasts who want a fast, fluid, and precise kit, more geared towards glide than aerial freestyle.
• Those who desire an integrated, rigid, and "plug & play" setup without having to think about fuselage and stab combinations.

Components Included in the Kit

• Blackbird 75 UMH W-Core mast (M75/BB).
• Blackbird Razor 847 front wing (WR847/BB).
• Integrated Progressive 345 stabilizer (SP345/BB).
• Carbon rail plate with titanium inserts (CP02K/Ti).
• Blackbird Glider hardware kit (MH171).
• Mast to Blackbird hardware kit (MH172).
• Carbon Plate to Rail Board hardware kit (MH160).
• Foam pad for plate (MH144).
• Spare pins and shims for Q02K system (MHQ02).
• Allen keys, Torx keys, and grease (MH137).

Technical Specifications

Razor 847 Blackbird Front Wing

• Wingspan: 847 mm.
• Surface Area: 784 cm².
• Aspect Ratio (AR): 9.2.
• Max Chord: 115 mm.
• Max Profile Thickness: 16 mm.

Progressive 345 Stabilizer

• Wingspan: 345 mm.
• Surface Area: 150 cm².
• Aspect Ratio (AR): 8.2.
• Max Chord: 64.4 mm.
• Max Profile Thickness: 7.3 mm.

Mast, Structure, and Kit Weight

• Blackbird Mast: 750 mm height.
• Board Connection: Carbon plate (rail mount).
• Fuselage: Integrated into the unibody front wing + tail structure.
• Approximate Foil Kit Weight: Approx. 3.5 kg.

On-Water Performance

• Product Line: Blackbird.
• Range: Razor.
• Recommended for: wave, freeride, downwind, SUP, pumping.
• Approximate Takeoff Speed: 13–15 knots.
• Approximate Top Speed (80 kg rider): 22–24 knots.

Riding Characteristics

Glide and Efficiency

The high-aspect profile of the Razor 847 guarantees an extremely long and linear glide, with the sensation of always moving forward even with little propulsion. It is ideal for connecting bumps and waves in downwind, covering long distances with reduced effort.

Integrated Stabilizer and Connected Feel

The integrated Progressive 345 stabilizer offers a natural balance between stability and maneuverability, with very direct feedback. The unibody construction minimizes flex and play, making the foil precise and "quiet" even during intense maneuvers.

Blackbird Rigidity and Control

The UHM Blackbird mast and integrated platform increase torsional rigidity and load resistance, improving control at speed and during landings. This translates into a solid feel underfoot, ideal for riders who want to push the limits without losing precision.

Q&A – Frequently Asked Questions

What is the difference between this integrated kit and the modular Razor 847 Blackbird?

The integrated version offers a more rigid and direct unibody structure, with a perfectly balanced and ready-to-use setup. The modular version, on the other hand, allows for changing the fuselage and stabilizer, offering greater tuning freedom for those who want to experiment with more configurations.

Is it also suitable for wing foiling?

Yes, the Razor 847-345-75 Blackbird is very effective in wing foiling for downwind and advanced wave riding, especially in medium-to-strong winds. However, for easier and more relaxed all-round wing use, foils more oriented towards lift and low takeoff speed are preferable.

What type of rider should choose this kit?

It is suitable for intermediate–advanced riders who love fast downwind and prone surfing and are looking for a smooth, precise, and reactive foil. It is not the first foil recommended for beginners: it requires a minimum level of foil management and speed control technique.

Is it suitable for pumping and dock-starting?

Yes, the combination of the 847 wing and 345 stabilizer offers an excellent compromise between takeoff, cruising speed, and pumpability. It is not the largest foil in the range, but it provides very efficient pumping for riders with good technique and physical condition.

Can I use fuselages or stabilizers from other systems?

This kit uses a configuration with an integrated stabilizer, so it is not designed to be used with separate fuselages or stabilizers. If you want maximum modularity, the Razor 847 Blackbird version with a modular backtail is more suitable.