How do I choose the right VETUS EHP capacity for my boat's steering?

[OJackson]

Selecting the correct VETUS EHP (Electro-Hydraulic Power unit) for your boat's steering system involves a straightforward calculation. Here's how to determine the suitable capacity: First, find out the volume of the steering cylinder installed on your boat. You can usually find this information in the technical specifications provided by the cylinder's manufacturer. Next, determine your desired board-to-board steering time, which is the time it takes for the rudder to move from full port to full starboard. Then, divide the cylinder volume by your desired board-to-board steering time. This calculation will give you the required capacity of the EHP, typically measured in cm3/sec or a similar unit. For example, if your cylinder volume is 146 cm3 and you desire a board-to-board time of 15 seconds, the calculation is 146 cm3 / 15 seconds = 9.73 cm3/sec. Therefore, you would need an EHP with a capacity close to 9.73 cm3/sec. When selecting a VETUS EHP, choose a model that meets or exceeds your calculated capacity. For instance, based on our example, the VETUS EHPB R2 might be a suitable option, offering a capacity of 700 cm3/min (equivalent to approximately 11.67 cm3/sec) and a board-to-board time of 12.5 seconds. Always consult VETUS's specifications for detailed information about each EHP model and its performance characteristics.