Designation:F1338−91(Reapproved2013)AnAmericanNationalStandardStandardGuideforMainPropulsionMediumSpeedMarineDieselEnginesCoveringPerformanceandMinimumScopeofAssembly1ThisstandardisissuedunderthefixeddesignationF1338;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversperformanceandminimumscopeofassemblyofallmediumspeedmarinedieselenginesintendedformainpropulsionofsingleormultiplescrewpropelledmarinevesselsorforvesselsusingotherthanscrewpropeller-typemainpropulsion.1.2Thisguideisintendedtosupplementtheregulationsoflegallyconstitutedregulatingauthorities.Intheeventofanyconflict,whichmaybecomeapparentafterpublicationofthisguide,withsuchlegallyconstitutedregulations,thelattershalltakeprecedence,asmaybeapplicablewithinthejurisdictionofsuchauthoritiesandspecifictoeachcase,unlesssuchlatterregulationsareformallywaivedbypropercognizantauthority.1.3Thisguideisnotintendedtorelievethepurchaseroftheobligationfullytoadvisetheenginebuilderofallofthepurchaser’suniqueoperationalconsiderationstoallowthoseconsiderationstobesatisfied.2.ReferencedDocuments2.1ABSStandard:2RulesforBuildingandClassingSteelVessels2.2IEEEStandard:3StandardNo.45,RecommendedPracticeforElectricalIn-stallationsonShipboard2.3ISOStandard:4ISO3046/1ReciprocatingInternalCombustionEngines—Performance2.4CodeofFederalRegulations:5UnitedStatesCoastGuardRegulationsasPublishedinCodeofFederalRegulationsNo.46(CFR46)3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1dieselengine—areciprocatingorrotaryengineinwhichignitionofthemainfuelcharge,asitisintroducedtothecombustionchamber,shallbebytheheatofcompressionofthechargeofcombustionair,duringregularoperationoftheenginefromidlespeedsuptofullspeed,regardlessofwhethermiscellaneousmethodstoaugmentsuchheatofcompressionareusedtofacilitate...
