Introduction

Our steering system is a perfect solution for commercial ships, passenger boats and leisure crafts whatever you want
“Steering system consists of a pump, a cylinder, a handle and which you can combined a module at your needs”

We supply default modules you can choose

Character of Hydraulic steering system

How to select a module

1. Rudder information and vessel mas speed required

2. It is hard to know the rudder information in the field

3. D-I offers default selections of steering system models by engine’s horsepower.

 * Twin engines : Sum of engine’s horsepower

4. When you know rudder and vessel information, you calculate the rudder torque with the formula below

Rudder torque(kg.m) = Pn × r

Pn = 31.2 × A × V² ＋ sinΘ ; Pressure of the tide applied to the rudder

Θ : Maximum rudder angle of Port/Starboard (Ex; sin35=0.5736, sin40 = 0.6458)

A = a × b (m²) ; Total surface of rudder

V ; Maximum speed of the boar in knots(Knot)

r = (0.195+0.305 × sinΘ-e) X a ; Distance between Center from rudder

e = (c × b)/(a × b) ; Balance area for entire area

* Refer to right image