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1、SUBCOURSEEDITIONAL0992ABASICAIRFRAMEREPAIRBASICAIRFRAMEREPAIRSubcourseNumberAL0992EDITIONAUSArmyAviationLogisticsSchoolFortEustis,Virginia23604-54394CreditHoursEditionDate:September1994SUBCOURSEOVERVIEWThissubcourseisdesignedtoprovideyouwithageneralfamiliarizationoftheairframeof
2、today'saircraftandrepairprocedures.Youwillstudythedesignandconstructionofaircraftpartsandassemblies,metalsusedintheconstruction,andthemetalqualitiesandstressesinvolved.Youwillalsostudyproceduresinvolvedintherepairofdamagestotheaircraftskinandstructureandthetypeofhardwarerequired
3、.Earlyaviation'saircraftmadeofwoodandfabric,reinforcedwithmetal,werestrongenoughtowithstandthevibrationsandtorsionstressesmetatslowspeed.However,withtheneedforhigherspeeds,greaterpayloads,andmorepowerfulengines,woodbecameunsatisfactory.Manufacturersanddesignersrealizedthatstruct
4、uralpartsmadewithmetalmustreplacethewoodandfabric.Sotheydevelopedlight,strongmetalalloys.Tothesetheyappliedstructuralformingandreinforcingmethodstoreduceweightandtogainthestrengthrequiredforincreasedperformance.Makingrepairsinvolvedselectingtherightmetalforstructuralstrengthands
5、treamlining,choosingthetypeofrivettouse,anddeterminingthetypeofpatchthatwillmeetstructuralrequirements.Alsoimportantisdetermininghowmuchweightcanbeadded,withinsafelimits,andchoosingthemethodofstructuralformingandreinforcementtouse.Youwillfindthistextdividedintotwochapterswhichdi
6、scussairframeparts,metals,processes,hardwareanddamagerepair.However,thediscussionhereisnotasubstituteforthetechnicalmanual(TM)applicabletoaspecificaircraftoraparticularrepairtechnique.Theinformationgivenhereisdesignedtogiveyouageneralbackgroundinbasicairframerepair.iAL0992Thissu
7、bcourseistobecompletedonaself-studybasis.Youwillgradeyourlessonsasyoucompletethemusingthelessonanswerkeyswhichareenclosed.Ifyouhaveansweredanyquestionincorrectly,studythequestionreferenceshownontheanswerkeyandevaluateallpossiblesolutions.Therearenoprerequisitesforthissubcourse.T
8、hissubcoursereflectsthedoctrinewhichwascurrenta
