Designation:F3331−18StandardPracticeforAircraftWaterLoads1ThisstandardisissuedunderthefixeddesignationF3331;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeprovidesequationsforcalculatingwaterloadsforaeroplanedualfloatsandsinglehulls.Thematerialwasdevelopedthroughopenconsensusofinternationalexpertsingeneralaviation.ThisinformationwascreatedbyfocusingonLevel1,2,3,and4NormalCategoryaeroplanes.Thecontentmaybemorebroadlyapplicable;itistheresponsibilityoftheApplicanttosubstantiatebroaderapplicabilityasaspecificmeansofcompliance.1.2AnapplicantintendedtoproposethisinformationasMeansofComplianceforadesignapprovalmustseekguid-ancefromtheirrespectiveoversightauthority(forexample,publishedguidancefromapplicableCAAs)concerningtheacceptableuseandapplicationthereof.Forinformationonwhichoversightauthoritieshaveacceptedthisstandard(inwholeorinpart)asanacceptableMeansofCompliancetotheirregulatoryrequirements(hereinafter“theRules”),refertoASTMCommitteeF44webpage(www.astm.org/COMMITTEE/F44.htm).1.3Units—Thevaluesstatedininch-poundunitsaretoberegardedasstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2F3060TerminologyforAircraft3.Terminology3.1Alistingofterms,abbreviations,acronyms,andsym-bolsrelatedtoaircraftcoveredbyASTM...
