PRODUCT SOLUTION

Jet- cap

Suppressing energy loss and realizing efficient navigation

The hub vortex generated at the rear end of the propeller boss cap causes energy loss.
By equipping with JET-Cap, the propeller wake is streamlined, and the hub vortex is diffused, thereby suppressing energy loss.

Features

By attaching an optimal cap and fins tailored to the propeller shape, the negative pressure region at the cap's rear end is converted to positive pressure.
By recovering the rotational flow of the propeller boss, the required torque for shaft rotation is reduced.
Fins are made of GFRP (glass fiber reinforced plastic), which is lightweight and highly durable.
Even if damaged, only the affected fin can be individually replaced, providing excellent maintainability.

Structure and Installation

The fins are bolted to the boss cap.
After screwing the bronze boss cap onto the shaft nut, the fins are fitted onto the nut part with the specified torque to complete the installation.