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.
Sectional view through the ABP propeller hub
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 monoblock 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 drydocking and only spare blades need to be
stocked rather than a complete monobloc propeller.
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