TM 55-1510-220-10 Section II.  OPERATING PROCEDURES AND MANEUVERS 8-7.  OPERATING  PROCEDURES  AND  MANEUVERS. This   section   deals   with   normal   procedures   and includes    all    steps    necessary    for    safe    and    efficient operation  of  the  aircraft  from  the  time  a  preflight  begins until the flight is completed and the aircraft is parked and secured.  Unique feel, characteristics, and reaction of the aircraft    during    various    phases    of    operation    and    the techniques    and    procedures    used    for    taxiing,    takeoff, climb,  etc.,  are  described,  including  I  precautions  to  be observed.      Only   the   duties   of   the   minimum   crew   are included. 8-8.  ADDITIONAL DATA. Additional crew duties are covered as necessary in Section  VI,  CREW  DUTIES.    Mission  equipment  checks are   contained   in   Chapter   4,   MISSION   EQUIPMENT. Procedures   specifically   related   to   instrument   flight   that are  different  from  normal  procedures  are  covered  in  this section   following   normal   procedures.      Descriptions   of functions, operations, and effects of controls are covered in   Section   III,   FLIGHT   CHARACTERISTICS,   and   are repeated in this section only when required for emphasis. Checks that must be made under adverse environmental conditions,  such  as  desert  and  cold  weather  operations, supplement normal procedures checks in this section and are covered in Section V, ADVERSE ENVIRONMENTAL CONDITIONS. 8-9.  CHECKLIST. Normal  procedures  are  given  primarily  in  checklist form  and  are  amplified  as  necessary  in  accompanying paragraph     form     when     a     detailed     description     of     a procedure or maneuver is required.  A condensed version of the amplified checklist, omitting all explanatory text, is contained in the Operator's and Crewmember's Checklist, TM    551510-220-CL.        To    provide    for    easier    cross referencing,    the    procedural    steps    are    numbered    to coincide  with  the  corresponding  numbered  steps  in  TM 551510-220-CL. 8-10.  USE OF CHECKLIST. Although  a  good  working  knowledge  of  all  aircraft procedures  is  desirable,  it  is  not  mandatory  that  they  be committed  to  memory.    The  pilot  is  responsible  for  the initiation   and   accomplishment   of   all   required   checks. Checklist  items  will  be  called  out  orally  and  the  action verified  using  the  pilot's  checklist  (-CL).    The  copilot  will normally  read  the  checklist  and  perform  such  duties  as indicated,   as   well   as   those   directed   by   the   pilot.      "As required"   will   not   be   used   as   a   response;   instead   the actual position or setting of the unit or item, such as "ON" or "UP" or "APPROACH" will be stated.  Upon completion of each checklist, the copilot will advise the pilot that the checklist called for has been completed. 8-1 1.  CHECKS. Items which apply only to night or only to instrument flying  shall  have  an  "N"  or  "I"  respectively,  immediately preceding the check to which it is pertinent.  The symbol "O"  shall  be  used  to  indicate  "if  installed."  Those  duties which are the responsibility of the copilot, at the command of  the  pilot,  will  be  indicated  by  a  circle  around  the  step number,  i.e.,(4.)Circuit  breakers  In.    The  star  symbol  4 indicates an operational check contained in the performance   section   of   the   condensed   checklist.      The asterisk symbol "*" indicates that performance of the step is mandatory for all thru-flights.  The asterisk applies only to  checks  performed  prior  to  takeoff.    Placarded  items appear in upper case. 8-12.  BEFORE EXTERIOR CHECK. *1. Publications  Check  DA  Forms  2408-12,  -13,  -14, and  -18,  DD  Form  365F,  locally  required  forms and   publications,   and   availability   of   operator's manual (-10) and checklist (-CL). *2. Oxygen   system   Check   that   oxygen   quantity   is sufficient for the entire mission. CAUTION If  high  or  gusty  winds  are  present, and the flight controls are unlocked,  control  surfaces  may  be damaged by buffeting Change 2  8-2