*TM 1-1510-218-10TECHNICAL MANUAL HEADQUARTERSDEPARTMENT OF THE ARMYNO. 1-1510-218-10 WASHINGTON, DC, 1 OCTOBER 2009OPERATOR'S MANUAL FORARMY C-12C, C-12D, C-12T1, AND C-12T2 AIRCRAFTREPORTING OF ERRORS AND RECOMMENDING IMPROVEMENTSYou can help improve this manual. If you find any mistakes or if you know of a way toimprove the procedures, please let us know. Mail your letter, DA Form 2028(Recommended Changes to Publications and Blank Forms)located in the back of this manual directly to: Program Executive Office – Aviation,ATTN: SFAE-AV-AS-FW (C-12), Redstone Arsenal, AL 35898-5000. A reply will befurnished to you. You may also send your comments electronically to our e-mailaddress, troy.brown@redstone.army.mil or by fax 256-955-0887/DSN 645-0887.Instructions for sending an electronic 2028 may be found at the back of this manualimmediately preceding the hard copy 2028.DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.TABLE OF CONTENTSPageCHAPTER 1 INTRODUCTION .............................................................................................................. 1-1CHAPTER 2 AIRCRAFT AND SYSTEMS DESCRIPTION AND OPERATION .................................... 2-1Section I. Aircraft............................................................................................................................... 2-1Section II. Emergency Equipment.................................................................................................... 2-31Section III. Engines And Related Systems ....................................................................................... 2-31Section IV. Fuel System .................................................................................................................... 2-52Section V. Flight Controls................................................................................................................. 2-61Section VI. Propellers........................................................................................................................ 2-69Section VII. Utility Systems ................................................................................................................ 2-73Section VIII. Heating, Ventilation, Cooling, And Environmental Control System ................................ 2-89Section IX. Electrical Power Supply And Distribution System .......................................................... 2-93Section X. Lighting.......................................................................................................................... 2-112Section XI. Flight Instruments ......................................................................................................... 2-116Section XII. Servicing, Parking, And Mooring .................................................................................. 2-124CHAPTER 3 AVIONICS (COMMON) ) C D T1 T2.............................................................................. 3-1Section I. General ............................................................................................................................. 3-1Section II. Communications ............................................................................................................... 3-1Section III. Navigation ......................................................................................................................... 3-2Section IV. Radar and Transponder.................................................................................................. 3-80CHAPTER 3A AVIONICS C D1 ........................................................................................................... 3A-1Section I. General ........................................................................................................................... 3A-1Section II. Communications ............................................................................................................. 3A-1Section III. Navigation .....................................................................................................................3A-16Section IV. Radar and Transponder................................................................................................3A-37*This manual supercedes TM 1-1510-218-10, dated 4 September 2001, with all changes. i