... .CCS,ZY,ABS,BV,DNV,LR,GL,NK,RINA 4.Single,double rudder Synchronous Hydraulic Steering Gear1. Features and ApplicationSynchronous Hydraulic ... linking control system, which overcomes the shortcomings by use of connecting rod or electric control alone, and it also can reduce the ... and the diameter of rudder stock during ordering;2) The connecting rod used in the system shall be provided by clients;3 ...