Sunday, April 5, 2020

Advantages and disadvantages of Rotary vane Steering gear

Advantages
  • Can be fitter without a rudder carrier
  • Steering gear applies a pure torque to the stock , eliminating any transverse Loading on the rudder bearings.
  • Compact hence are useful with twin rudder application
  • Saving in weight and intial cost
Disadvantages
  • Efficient seal is difficult ot achieve , this with small movements over much of the operating life can lead to problm
ie, 1.Mechanical advantage is low
     2.Has a leakage path from high to low pressure side. Usually limited to ships requiring low rudder torque
 

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