The ERMA FIRST FLEXCAP marks a significant breakthrough in maritime energy-saving technologies. It builds on the proven capabilities of Boss Cap Fins (BCF), thus leading to optimized maritime efficiency and sustainability.
ERMA FIRST FLEXCAP improves propulsive efficiency by weakening the propeller hub vortex, which subsequently reduces propeller torque and in some cases, increases thrust. It effectively utilizes the swirl, while its fins catch and absorb the rotating water force. This innovative design eliminates the vortex, channelling the energy back into the propulsion drive train. In addition, ERMA FIRST FLEXCAP can be deployed to minimize propeller-induced noise and vibrations.
ERMA FIRST FLEXCAP Specifications
Diameter: Approximately 23-25% of the propeller diameter
Weight: Roughly 3% of the propeller weight (no need for shaft alignment recalculation)
The dimensions and weight may vary based on specific design but are not expected to increase significantly
Material: ERMA FIRST FLEXCAP is made from NiAlBronze, the same material as the propeller, ensuring durability and longevity