Controllable-Pitch Propeller (CPP) · Shaft Line & Propulsion
A Wärtsilä controllable‑pitch propeller (CPP) with a 7.5 m diameter, four nickel‑aluminium bronze blades and a design speed of about 150 rpm, providing variable pitch for optimal thrust control across a wide range of operating conditions.
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What our service work and the manufacturer documentation say about keeping this model running.
Inspect blades, hub, seals, hydraulic-oil condition, pitch feedback and accessible control equipment. Trend pitch response, oil leakage and any hub-oil contamination. Check blade roots and sealing areas carefully during docking. Refer to the manufacturer and class documentation for the exact figure for blade-bearing clearance, pitch limits and seal criteria.
Carry hub seal kits, hydraulic filters, control-valve and feedback-sensor spares, approved hydraulic oil and manufacturer-specified pitch-control service parts.
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