Figure 3—8.—Details of a typical underwater strut bearing.system operations.This proficiency combined withlocal manual operating mode. The maximum rate ofleadership skills will assist you daily in your supervisoryrole.CRP/CPP SYSTEMS OPERATIONSIn this section, we will briefly cover routine andemergency operations of the CRP/CPP systems. Sincethe various ship systems are functionally the same, wewill not indicate ship type except when necessary.However, if you need to review the basic design andoperational characteristics of these systems, consultGSE3/GSM3, volumes 1 and 2.Routine OperationPropeller pitch changes can be made through the fullrange of travel in one continuous movement. The pitchchange can be made in automatic, remote manual, orpitch change, 30 seconds from full ahead to full astern,is determined by the response of the hydraulic system.Pitch change rate is NOT determined by the speed ofmovement of the control lever.The CRP/CPP systems were designed to maximizethe ability of the ship’s propulsion GTE to accelerateand decelerate rapidly and to enhance maneuverability.To further enhance the systems’ performance and tomake them more “user friendly,” some subtle changeswere made. These changes have been installed on thenewest gas turbine ship platform, the DDG-51 classship. The following sections will explain some of thesechanges and the contributions they make to systemperformance.As a GS supervisor, you should be aware of thechanges incorporated in the CRP/CPP systems installedon the DDG-51 class ships and the advantages they offer3-12
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