Adjustable Bolted Propellers

The Adjustable Bolted Propeller (ABP) allows the most efficient blade matching for optimum efficiency while simplifying the installation process.

The Kamewa® ABP is based on a hollow hub with blades bolted to it from the inside. A unique feature is the method of bolting the blades to the hub using simple hand tools.

Features and benefits

Slotted holes on the hub allow stepless blade pitch angle adjustment
Simpler, less costly installation at the shipyard
Smaller, lighter components mean lower costs for shipment, storage and handling
Individual blades can be replaced if damaged
Easy underwater installation and replacement of blades
Hollow hub reduces total weight and extends bearing life
Stainless steel or NiAl – bronze blades

In comparison to conventional mono-block fixed pitch propellers the ABP has higher quality blade matching and reduced overall weight, which gives easier shipment, handling and installation.

In service, the slotted holes on the hub allow the blade pitch angle to be adjusted to compensate for long-term variations in hull resistance.

Individual blades on AB propellers can be replaced without dry-docking and only spare blades need to be stocked rather than a complete mono-bloc propeller.

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