Horizon FD100-915

Performance Objectives

Horizon Yachts required a high-performing propulsion solution for the FD100-915, with a strong focus on smoothness, minimal vibration, and consistent performance across their production range. The customer specifically targeted 2330 rpm as the desired operating point for optimal performance and engine loading while maintaining high cruising and top-end speeds.

VEEM’s initial prediction estimated a top speed of 22.25 knots at 2330 rpm at the design displacement. The propeller solution also needed to be repeatable across the FD100 series, with strict geometric consistency and identical performance characteristics for every vessel.

Propulsion Solution

VEEM supplied a fully CNC-machined 46-inch, 6-blade VEEM Superyacht propeller set, engineered for exceptionally low vibration, smooth tonal quality, and refined efficiency throughout the vessel’s operating envelope. The design incorporates VEEM’s interchangeable 1 mm interceptor system, enabling precise pitch-loading adjustments without remanufacturing the propeller.

This approach allows the shipyard to fine-tune engine loading rapidly during commissioning. When MAN later required a 2350 rpm overrun capability—higher than the original target—VEEM’s Interceptor™ technology provided the flexibility to adjust pitch characteristics simply by altering interceptor engagement, ensuring compliance with engine requirements without replacing hardware.

Sea Trial Results Summary

Sea trials for Horizon FD100-915 showed performance exceeding predictions.

The vessel achieved a measured top speed of 23.05 knots, approximately 1 knot faster than VEEM’s predicted 22.25 knots. However, with the Orange (1 mm) interceptors fitted, maximum achievable rpm during the trial was approximately 2335–2345 rpm, slightly below MAN’s updated requirement of 2350 rpm at shipyard sea trial. This outcome confirmed that a minor reduction in effective pitch, achieved by adjusting or changing interceptor strips, would be required to meet the new engine loading specification. Horizon were able to achieve this using Interceptor™ technology.