The Narwhal WB-420 is a highly durable 4.2-meter, rigid-hull inflatable work boat (RIB) designed for professionals.

It is widely used for dive support, sailing school instruction, and commercial utility applications. Packages for this model, including a 50 HP Yamaha engine and trailer.

Appreciated for its speed, stability, and load-carrying capacity, its core specifications are structured as follows:

• Overall Length: 4.20 m (13.8 ft)
• Overall Beam (Width): 2.07 m (6.8 ft)
• Empty Weight: 200 kgMaximum
• Payload: 685 kgMaximum
• Capacity: 6 persons
• Engine Requirements: Supports 25 HP to 40 HP outboard motors
• Buoyancy Chambers: 5 + 1 independent compartments