l Any situation that would endanger human life ifthe trial were conductedIf a trial performance is unsatisfactory, the ship willnormally be required to hold another trial that the typecommander feels will demonstrate satisfactoryengineering readiness.If a ship failed to make the required rpm for anyhour during the trial, that should be noted in the trialreport along with the amount by which it failed.Some of the requirements pertaining to the mannerof conducting full-power and economy trials are asfollows:. Unless otherwise ordered, the ship may start afull-power trial at any time on the date set.. Divide the trial into hourly intervals, but take andrecord readings at least every half hour. Submit data ashourly readings in the trial report. Record full-power(modified) trial data every 15 minutes.. Determine fuel expenditures for each hourlyinterval of the trial by the most accurate means available.This usually means meter readings corrected for metererror and verified by soundings.. Maintain the appropriate material condition ofthe ship during the different trials.. Provide normal ship’s services during all of thetrials.. Check and synchronize all clocks in theengineering spaces and on the bridge before beginningthe trial.It is common practice for many commandingofficers, when conducting full-power trials, to bring theship up to a speed several knots below the trial speed ofthe ship, and then to transfer control of the ship’s speed(except in an emergency) to the engineer officer untilthe specified speed is attained. The control engineroom, under the supervision of the engineer officer,brings the speed up slowly, depending upon theconditions of the plant, until the specified speed hasbeen reached. The commanding officer instructs theOOD or navigator to avoid the use of the rudder and totry not to change course unless it becomes necessary.In most ships with oil-fired boilers, the designedboiler power is the first factor that establishes a ship’smaximum speed. For that reason, it is necessary tocheck boiler steaming conditions before orderingaddional turns. Do not load the boiler faster than it canhandle the increased load. Maintain the steam pressureand temperature at full value for the appropriatesteaming condition. The boilers should be thecontrolling factor and must be kept ahead of theturbines. If the turbines are allowed to get ahead of theboilers, the main steam pressure and temperature willdrop below normal values for that particular steamingcondition or speed of the ship. Then, to make up thisloss in steam pressure and temperature and to meetadditional increases of speed that may be necessary, theboilers must be fired at an extremely high rate. In someships, the necessary firing rate may exceed the full-loadrating of the boiler and approach the maximum 120percent overload capacity rating of the boiler. As far asthe engineering plant is concerned, the purpose of theacceleration table is to prevent overloading the boilers.The acceleration table is of particular importance whenaccelerating near full speed and full power.Review OPNAVINST 9094.1 for all requirementsand other information needed to make reports onfill-power and economy trials. Use OPNAV Forms9094.1A, 9094.1B, and 9094.1D to make reports onthese trials. See the type commanders instructions foradditional information.READINESS INSPECTIONSWhen a ship undergoes an administrative, material,or operational readiness inspection, the typecommander will appoint an inspection board, usuallyfrom another ship of the same type, whose personnelwill help conduct the inspections.The chief inspector (generally the commandingofficer of the assisting ship) organizes the inspectionboard. The organization usually conforms to theadministrative organization of the observed ship. Theinspection board is divided into parties, each headed bya senior inspector. The engineer officer of the assistingship usually heads the engineering inspection party.That party usually is divided into three groups:machinery (including main propulsion), electrical, anddamage control.The type commander usually furnishes checkliststo help observers conduct readiness inspections.Engineering checklists are usually divided into threesections: machinery (main propulsion), electrical, anddamage control. These checklists may not be allinclusive, and the inspection may show a need toconsider other items.After the inspection, the inspection team holds acritique to inform the ship’s officers of conditions andto recommend improvements.4-8
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