China manufacturer supply high quality boat flap rudder
Product Description
The marine rudder is a main part of the steering system for vessels. The whole rudder system includes rudder blade, rudder carrier, rudder pintle, rudder stock, etc. We can design different types of the rudders as the requirement of our clients.
The Flap Rudder is the ultimate rudder solution when it comes to ship manoeuvrability. With decades of research, development and practical experience behind it, this rudder is the most mature design of all flap rudders in the shipbuilding industry. Optimized profiles, rudder balance, deflection ratio between rudder blade and flap, hinge and link systems guarantee a reliable and efficient tool for your vessel.
The flap rudder includes two sub-components of main rudder and second rudder,by the transmission means the second rudder turned with the main rudder.The curved face of flap rudder has more bent than the conventional rudder.The rudder has the high efficiency and better hydrodynamic characteristics,light weight,high efficiency rudder,good value and better operational performance.In recent years flat rudder has been used at home and aboard.
Because of the correction ability of flap rudder and the rudder contains the function of the fleetness reaction,the flap rudder can ensure that consume the least fuel when the ship is at maximum speed.
The steel of making flap rudder is recognized by the classification societies. In order to reduce erosion on the working rudder performance which the moving parts in contact with seawater include drain plug,bolt,driving mechanism etc. are made of stainless steel. In order to expediently maintain and ease of installation by reducing the mounting height, flap and main rudder with hanging holes,rudder sleeve at the elbow board and soleplate soldered directly to the hull bottom, at the rudder bearing lubrication with water or oil,operational performance of the rudder blades to further enhance.
Product Features:
Improving the operational safety of the ship;
Improving the control of the ship's rudder and turning performance;
The lift coefficient of flap rudder is 1.5 to 1.8 times than that of the conventional rudder;
Reducing rudder consumption,enhance economic efficiency;
The best balance and flap area;
Smaller rudder area;
Simple structure,easy maintenance;
Easy to be installed and used reliably
The main technical indexes for the davits
| Rudder Angle |
45° |
| Flap Angle |
45°-55° |
| Rudder Balance |
0.38-0.45 |
| Flap Ratio |
0.20-0.25 |
Audited Supplier 
){kind=link}
){kind=link}