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It explains aircraft engine systems by detailing the units that bring fuel, air, and ignition together for combustion, covering engine construction features, lubrication, exhaust, cooling, cylinder removal and replacement, compression checks, and valve adjustments. It also provides representative treatment of systems to reduce repetition and directs learners to consult official regulations and manufacturers’ manuals for final authority.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/airframe-and-powerplant-mechanics-powerplant-handbook-chapter-2/292905/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/airframe-and-powerplant-mechanics-powerplant-handbook-chapter-2/292905.png","ImageObject",300,407,{"name":92,"@type":93},"Blitz","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-22","2026-09-17",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",12,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the purpose of this handbook for mechanics certificate study?","Question",{"text":113,"@type":114},"It provides basic information on powerplant-rating principles, fundamentals, and technical procedures, serving both formal students and independent learners.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"Which engine system topics are covered in the volume?",{"text":118,"@type":114},"The content explains units bringing fuel, air, and ignition together for combustion, and includes engine construction features, lubrication, exhaust, and cooling systems.",{"name":120,"@type":111,"acceptedAnswer":121},"How does the handbook handle differences among aircraft engine types?",{"text":122,"@type":114},"It uses representative systems and units throughout to avoid undue repetition, and recommends supplementing with manufacturers’ manuals and other textbooks for more detail.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},292905,1789657488,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":130,"read_time":145},24464137899374,"https://us-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","AirframedPowerplantMECHANICSPOWERPLANT HANDB0OK  \nU.S.DEPARTMENT OF TRANSPORTATIONFEDERAL AVIATION ADMINISTRATION  \nAIRFRAME AND POWERPLANTMECHANICSPOWERPLANT HANDBOOK  \nDEPARTMENT OF TRANSPORTATIONFEDERAL AVIATION ADMINISTRATION  \nFlight Standards Service  \nFirst Edition 1971First Revision 1976  \nPREFACE  \nThis advisory circular is printed for persons preparing for a mechanics cer-tificate with a powerplant rating.It is intended to provide basic information onprinciples,fundamentals,and technical procedures in the areas relating to the power-plant rating.This is designed to serve as a guide for students enrolled in a formalcourse of instruction,as well as the individual who is studying on his own.  \nThis volume is devoted to an explanation of the units which make up each ofthe systems that bring fuel,air,and ignition together in an aircraft engine for com-bustion.It also contains information on engine construction features,lubricationsystems,exhaust systems,cooling systems,cylinder removal and replacement,com-pression checks,and valve adjustments.  \nBecause there are so many different types of aircraft engines in use today,it isreasonable to expect minor differences to exist in like system components.To avoidundue repetition,the practice of using representative systems and units is carriedout throughout the advisory circular.Subject-matter treatment throughout thetext is from a generalized point of view and its use can be supplemented by referenceto manufacturer's manuals and other textbooks if more detail is desired.  Thisadvisory circular is not intended to replace,substitute for,or supersede official reg.ulations or manufacturer's instructions which should be consulted for final authority.  \nGrateful acknowledgement is extended to the manufacturers of engine,propellers,and powerplant accessories for their cooperation in making material available forinclusion in this handbook.  \nThis handbook contains material for which a copyright has been issued.Copy-right material is used by special permission of United Aircraft Corporation,Prattand Whitney Aircraft Division,and may not be extracted or reproduced withoutpermission of the copyright owner.  \nThe advancements in aeronautical technology dictate that this advisory circularbe brought up-to-date periodically.It has been updated,errors have been corrected,new material has been added,and some material has been rearranged to improve theusefulness of the handbook.We would appreciate,however,having errors broughtto our attention,as well as suggestions for improving its usefulness.Your commentsand suggestions will be retained in our files until such time as 'the next revision iscompleted.  \nAddress all correspondence relating to this handbook to:  \nDepartment of TransportationFederal Aviation AdministrationFlight Standards National Field OfficeP.0.Box 25082Oklahoma City,Oklahoma 73125  \nThe companion advisory circulars to AC 65-12A are the Airframe and Power-  \nplant Mechanics General Handbook,AC 65-9A,and the Airframe and Powerplant  \nMechanics Airframe Handbook,AC 65-15A.  \nCONTENTS  \nPREFACE ………………………………………………………………………………………………………………………………………………iii  \nCONTENTS………………………………………………………………………………………………………………………V  \nCHAPTER 1.—THEORY AND CONSTRUCTION OF AIRCRAFT ENGINES  \nGeneral …………………………………………………………………………………………………………………………………………………l  \nComparison of Aircraft Powerplants……………………………………………………………………2  \nTypes of Reciprocating Engines…………………………………………………………………4  \nReciprocating Engine Design and Construction …………………………………………5  \nCrankshafts…………………………………………………………………………………………………………………………………………11  \nConnecting Rods ……………………………………………………………………………………………………………12  \nPistons …………………………………………………………………………………………………………………………………………………15  \nPiston Rings …………………………………………………………………………………………………………………16  \nCylinders…………………………………………………………………………………………………………………………17  \nCylinder Numbering……………………………………………………………………………………………………18  \nFiring Order…………………………………………………………………………………………………………………19  \nValves ………………………………………………………………………………","cbCair3ffwCbSE90","https://ap.wps.com/l/cbCair3ffwCbSE90","pdf",27628159,503,"English","# Preface\n# Chapter 1 - Theory and Construction of Aircraft Engines\n## General\n## Comparison of Aircraft Powerplants\n# Chapter 2 - Induction and Exhaust Systems\n## Reciprocating Engine Induction Systems\n## Induction System Icing","[{\"question\":\"What is the purpose of this handbook for mechanics certificate study?\",\"answer\":\"It provides basic information on powerplant-rating principles, fundamentals, and technical procedures, serving both formal students and independent learners.\"},{\"question\":\"Which engine system topics are covered in the volume?\",\"answer\":\"The content explains units bringing fuel, air, and ignition together for combustion, and includes engine construction features, lubrication, exhaust, and cooling systems.\"},{\"question\":\"How does the handbook handle differences among aircraft engine types?\",\"answer\":\"It uses representative systems and units throughout to avoid undue repetition, and recommends supplementing with manufacturers’ manuals and other textbooks for more detail.\"}]","Airframe and Powerplant Mechanics Powerplant Handbook - Chapter 2 | PDF",1268]