The repair of bronze rudders and propellers normally requires the boat to be pulled up onto a slipway, lifted out of the water to the quayside or dry-docked. The resurfacing and machining of the rudder can be carried out by an experienced DIY person. However because of balance requirements and blade profile, propeller resurfacing and […]
Most boat rudders and propellers are cast from good quality alloys in an attempt to reduce corrosion and other wear from immersion and operation in seawater. Depending on the design and requirements of the boat, a boat’s rudder can be fitted outboard, being hung aft, or inboard hung under the hull. Inboard rudders are more […]
As the propeller turns it absorbs the torque developed by the engine at given revolutions i.e., the delivered horsepower – and converts that to the thrust which, in turn, pushes the vessel through the water. According to Bernoulli’s law the passage of a hydrofoil (propeller blade section) through the water causes a positive pressure on the […]