A Viable Propeller Choice for Narrowboats

The Vetus three-bladed manganese bronze propeller offers excellent value and reliable performance. Measuring 18” in diameter with a 14” pitch, this propeller provides a cost-effective solution for inland cruising. Because the design remains gentle on the drive system, you will rarely need to activate your motor cooling pump during standard canal travel.

Understanding Propeller Specifications

The design characteristics of this propeller ensure it operates efficiently at lower speeds. By utilising specific geometry, it provides a balanced experience for the boat owner:

• Optimised Disk Area Ratio ($Fa/F = 0.52$): This ratio indicates a lower blade surface area, which reduces the load on your motor and enhances efficiency on inland waterways.
• Standard 1:10 Taper: The hub features a universal 1:10 taper, ensuring a precise and secure fit onto the propeller shaft.
• Durable Manganese Bronze: This high-quality material offers a long-lasting and robust finish for the price.

Shaft Recommendation

To manage the torque and thrust generated by this unit, we recommend a 30mm shaft. This combination provides the necessary strength and stability to prevent bending or excessive vibration. Consequently, pairing this propeller with a high-quality shaft creates a durable, efficient propulsion system that represents a great investment for many narrowboat owners.