TM 1-1510-225-10 8-18 25,000 to 35,000 feet.……………..120 KIAS b.    Climb – Maximum Rate.  Maximum rate of climb performance is obtained by setting propellers at 2000    RPM,    torque    at    maximum    allowable    (or maximum ITT, monitor N₁), and maintaining best rate- of-climb airspeed.  Refer to Chapter 7 for best rate-of- climb airspeed (V_y) for specific weights. c.    Climb Checklist.  Complete as follows: 1.  YD – As required. 2.  AUTOFEATHER – As required. 3.  Cabin  pressurization  –  Check.    Adjust  rate control   knob   so   that   cabin   rate-of-climb equals   one   third   of   aircraft   rate-of-climb. Recommend setting cruise altitude +1000 ft. 4.  CABIN signs – As required. 5.  BRAKE DEICE – As required. 6.  WSHLD ANTI-ICE – As required. NOTE Turn  the  windshield  heat  on  to  NORMAL when  passing  10,000  feet  MSL  or  prior  to entering    the    freezing    level,    whichever comes   first.      Leave   on   until   no   longer required during descent for landing.  HIGH temperature  may  be  selected  as  required after     a     minimum     warmup     period     of 15 minutes. 7.  Altimeters – Set. O 8.  TCAS – Set range. 8-36.  CRUISE. 1.  POWER  –  Set.    Refer  to  the  cruise  power graphs contained in Chapter 7. NOTE A new engine operated at the torque value presented  in  the  cruise  power  charts  will show  an  ITT  margin  below  the  maximum cruise limit for the torque value presented in  the  charts.    With  ice  vanes  retracted, ENGINE   ANTI-ICE   OFF,   if   cruise   torque settings shown on the power charts cannot be  obtained  without  exceeding  ITT  limits, the engine should be inspected. 2.  ICE PROTECTION switches – As required. Ensure    anti-ice    equipment    is    activated before entering icing conditions. 3.  CABIN signs – As required. 4.  AUXILIARY fuel gauges – Monitor.  Ensure fuel is being transferred from auxiliary tanks. (Chapter 2, Section IV). 5.  Altimeters – Check.  Verify altimeter settings are correct. 6.  Engine     instruments     –     Check.          Note indications. O 7.  TCAS – Set for enroute. 8-37.  DESCENT – ARRIVAL. Perform  the  following  checks  prior  to  the  final descent for landing. 1.  Cabin  pressurization  –  Set.    Adjust  cabin controller dial as required. 2.  CABIN signs – As required. 3.  ICE PROTECTION switches – As required. NOTE Set windshield heat to NORMAL or HIGH as required   well   before   descent   into   icing conditions or into warm moist air to aid in defogging.  Turn off windshield heat when descent   is   completed   to   lower   altitudes and  when  heating  is  no  longer  required. This    will    preclude    possible    windshield distortions. 4.  WSHLD ANTI-ICE – As required. 5.  RECOG lights – ON. 6.  Altimeters – Set to current setting. O 7.  TCAS – Set as required. H 8.  Arrival briefing – Complete. 8-38.  DESCENT. Descent from cruise altitude should normally be made by letting down at cruise airspeed with reduced power.    Refer  to  Chapter  7  for  power  settings  and rates of descent. NOTE Cabin     pressure     controller     should     be adjusted prior to starting descent. a.    Descent   –   Maximum   Rate   (Clean).      To obtain    the    maximum    rate    of    descent    in    clean configuration, perform the following: 1.  Cabin  pressurization  –  Set.    Adjust  cabin controller dial as required. While descending, adjust rate control knob so that