Wartsila coastal and inland waterway propellers
Propulsion system

Wartsila coastal and inland waterway propellers

Coastal and Inland Waterway Propellers are available in Bronze or Stainless steel. They are tailor-made with 3, 4, 5, 6 or 7 blades. The accuracy can be according to ISO class II, I or S. Wärtsilä has the capability to deliver fixed pitch propellers for any diameter above 1000 mm, although for the coastal and inland waterway segment they are seldom larger than 3500 mm

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Propulsion system

Wartsila EnergoFlow

In today’s increasingly competitive shipping environment, you need solutions that not only increase your efficiency, but that are also reliable and have a short payback period. Wärtsilä EnergoFlow is an innovative and cost-effective pre-swirl stator that increases fuel efficiency by up to 10% – without increasing maintenance needs.Wärtsilä EnergoFlow creates optimal inflow for the propeller by guiding one side of the stern flow in the opposite direction to the propeller rotation, generating pre-swirl. The solution consists of multiple curved fins and a ring attached to the ship’s hull to prevent the power losses that typically occur in a propeller’s slipstream.

Special Characters of VL-Vec Twin Rudder System
Maritime News

VL-VecTwin Rudder System

Outline of VL-Vec Twin System Improvement in rudder performance has come to be an important element for very large blocky ships such as VLCCs, in which importance is attached to maneuverability. It can be considered […]

Propulsion system

Teori sirkulasi propeller kapal

Teori sirkulasi didasarkan pada konsep bahwa gaya angkat yang ditimbulkan propeller disebabkan oleh adanya aliran sirkulasi yang terjadi disekeliling daun. Aliran sirkulasi menyebabkan penurunan tekanan pada punggung daun serta kenaikan kecepatan  Setempat dan kenaikan tekanan […]

Propeller design theory
Propulsion system

Teori desain propeller kapal

Secara singkat kavitasi adalah pembentukan gelembung – gelembung pada permukaan daun. Sering terjadi pada bagian belakang permukaan daun / back side.