TM 55-1510-220-10 Table 5-2.  Generator Load Limits GENERATOR LOAD MINIMUM GAS GENERATOR RPM - N1 WITHOUT AIR CONDITIONING *WITH AIR CONDITIONING 0 to 50% 53% 60% 50 to 80% 60% 659 80 to 100% 63% 70% *Right engine only Section IV.  LOADING LIMITS 5-17.  CENTER OF GRAVITY LIMITATIONS. Center     of     gravity     limits     and     instructions     for computation   of   the   center   of   gravity   are   contained   in Chapter 6.  The center of gravity range will remain within limits,    providing    the    aircraft    loading    is    accomplished according to instructions in Chapter 6. 5-18.  WEIGHT LIMITATIONS. WARNING The ability to sustain loss of engine power and  successfully  stop,  continue  the  take off,     or     climb     before     or     after     gear retraction is not assured for all conditions. Thorough     mission     planning     must     be accomplished prior to take off by analysis of maximum take-off weight permitted by take-off distance, accelerate-stop, positive   one-engine-inoperative   climb   at lift    off,    accelerate-go,    take    off    climb gradient,  and  climb  performance.    These data will describe performance capabilities  for  critical  mission  decisions. Maximum  takeoff  gross  weight  is  15,000 pounds.        Maximum    landing    weight    is 15,000 pounds.  Maximum ramp weight is 15,090    pounds.        Maximum    zero    fuel weight is 11,500 pounds. 5-18A.  CABIN DOOR WEIGHT LIMITATION. Structural damage may be caused if more than one person is on the cabin door at a time.  The door is weight limited to 300 pounds or less. Section V.  AIRSPEED LIMITS, MAXIMUM AND MINIMUM 5-19.  AIRSPEED LIMITATIONS. Airspeed indicator readings contained in procedures, text, and illustrations throughout this Operator's Manual are given as indicated airspeed (IAS). Airspeed   indicator   markings   (fig.      5-1)   and   placarded airspeeds, located on the cockpit overhead control panel (fig.      2-12),   are   indicated   airspeed   (IAS).      Airspeed Calibration Charts are provided in Chapter 7. 5-20.  MAXIMUM ALLOWABLE AIRSPEED. Refer    to    Flight    Envelope    Chart    (fig.        5-2)    to determine  limiting  airspeeds  at  maximum  gross  weight under    various    conditions.        The    maximum    allowable airspeed is 247 KIAS/0.47 Mach. 5-21.  LANDING GEAR EXTENSION SPEED. The  airspeed  limit  for  extending  the  landing  gear and for flight with the landing gear extended is 184 KIAS. 5-22.  LANDING GEAR RETRACTION SPEED. The airspeed limit for retracting the landing gear is 166 KIAS. 5-23.  WING FLAP EXTENSION SPEEDS. The airspeed limit for APPROACH extension (40%) of the wing flaps is 202 KIAS.  The airspeed limit for full DOWN extension (100%) of the wing flaps is 157 KIAS.  If wing flaps are extended above these speeds, the flaps or their operating mechanisms may be damaged. Change 2   5-8