Limitations

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Author:
salisbury.r
ID:
114679
Filename:
Limitations
Updated:
2012-03-26 18:28:07
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Limitations
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Description:
E-120 Limitations
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  1. Vmo
    SL to 13,000'............272KIAS
  2. Mmo
    .52 MACH
  3. Va
    200 KIAS

    NOTE: Limit load factor of 2.8g shall not ne exceeded.
  4. Turbulent Air Penetration Speed
    • SL to 15,000'.............175KIAS (GLA)
    • +15,000'....................160 KIAS (GLA)
  5. Bird Impact Speed
    Below 8,000'......................250KIAS
  6. Vfe
    • Takeoff/Approach Flap 15o ...............200 KIAS
    • Flap 25o ............................................150 KIAS
    • Landing Flap 45o ....................130 KIAS (GLA)
  7. Vle
    200 KIAS
  8. Vlo
    200 KIAS
  9. Max Nose Wheel Speed
    165KIAS
  10. Max Main Wheel Speed
    165 KIAS
  11. Max Takoff/ Landing tailwind component
    10 knots
  12. Max demonstrated crosswind component
    30 knots (GLA)
  13. Engine Model number
    PW 118 A/B

    Inflight operations below FLT IDLE not permited
  14. Shaft Horsepower
    1800 shp (GLA)
  15. Equivailant shaft horse power
    1892 ESHP (GLA)
  16. Takeoff/ Max Continuous T6
    • 800oc
    • Note: May be exceeded during takeoff, up to 816oc for 5 minutes.
  17. Takeoff/ Max continuous torque
    100%

    Note: May be exceeded during takeoff, up to 110%, for 5 minutes.
  18. Takeoff/ Max continuous Np
    100.0%

    Note: Np speed control tolerance is 100 to 101%. During takeoff, Np digital indication may oscillate up to 2% depending on wind speed. This characteristic should disappear after takeoff.
  19. Takeoff/ Max continuous Nh
    102%
  20. Takeoff/ Max continuous NL
    102%
  21. Takeoff/ Max continuous oil temp
    45oc to 115oc

    Note: Oil temperature must be maintained above 45oc to ensure intake strut deicing and prevent fuel icing.
  22. Takeoff/ Max continuous oil press
    55 to 65 psid
  23. Ground Idle Nh
    62.0 min
  24. Ground idle oil temp
    -40oc to 115oc

    Note: Oil temperature must be maintained above 45oc to ensure intake strut deicing and prevent fuel icing.
  25. Ground idle oil press
    40 psid min

    Note: Operation between 40 and 55 psid only if Nh is below 75%.
  26. Starting T6
    • Above 816oc to 850oc for 20 seconds.
    • Above 850oc to 950oc for 5 seconds.
  27. Starting oil temp
    -40oc min
  28. Starting oil press
    70 psid max
  29. Transient T6
    850

    Note: Above 816oc to 850oc for 20 seconds.
  30. Transient torque
    120%

    Note: time limited to 20 seconds.
  31. Transient oil temp
    115oc to 125oc

    Note: Operations between these values time limited for 20 minutes. Oil temp must be 0oc or greater before moving props out of feather.
  32. Transient oil press
    40 to 70 psid
  33. Max reverse Np
    80.5%

    Note: Steady state operation after selection of reverse.
  34. Max reverse oil temp
    45oc to 100oc
  35. Max reverse oil press
    55 to 65 psid
  36. Starter duty cycles
    • 30 sec on 3 min off
    • 30 sec on 3 min off
    • 30 sec on 30 min off
  37. Propeller model number
    14RF-9
  38. Propeller diameter
    10.5 ft
  39. Propeller limitations
    • Condition levers must be in MIN RPM during all ground operations, except when cleared for takeoff.
    • Power levers must remain below FLT IDLE during ground operations, except for brief excursions (5 sec) as needed to maneuver the aircraft.
    • Ground operations above FLT IDLE significantly increases prop stress.
    • Power settings below FLT IDLE inflight may result in a propeller overspeed with loss of engine power, excessive propeller drag, and reduced aircraft controlability.
  40. Max usable fuel
    • 5856 lbs (GLA)
    • 874 gal (GLA)
  41. Unusable fuel in each wing tank
    • 24 lbs (GLA)
    • 3.7 gal (GLA)

    Note: Add 81.4 lbs to the unusable fuel in the corresponding wing tank when the main ejector booster pump is inoperative.
  42. Max demonstrated fuel imbalance
    600 lbs
  43. Max ramp weight (MRW)
    26609 lbs
  44. Max takeoff weight (MTOW)
    26433 lbs
  45. Max landing weight (MLW)
    25794 lbs
  46. Max zero fuel weight (MZFW)
    24030 lbs
  47. Max cargo weight
    • Old aircraft:
    • 1213

    • New aircraft:
    • 1543
  48. Max overhead weight
    • Old aircraft:
    • 40 lbs

    • New aircraft:
    • 73 lbs
  49. APU max operating temperature
    • ISA+38oc up to 16,000'
    • ISA+35oc above 15,000'
  50. APU max EGT
    732oc
  51. APU starting EGT
    732oc to 974oc (10 sec)
  52. APU staring envelope
    • -1,000' to 20,000'
    • 135-240 KIAS up to 15,000' decreasing to 210 KIAS
  53. After exceeding brake energy
    Must wait 26 minutes, and verify that the wheel thermal plugs have not melted.
  54. Minimum external temperature
    -54oc

    Note: In the event of a landing below-40oc, the LANDING BELOW -40oc abnormal checklist must be consulted.
  55. Maximum temperature with air conditioning functioning
    ISA+35oc
  56. Maximum temperature with air conditioning not functioning
    • Altitude alerter deenergized:
    • ISA+20oc

    • Altitude alerter energized:
    • ISA+15oc
  57. Maximum operating altitude
    • ......................Engine Bleed
    • EEC........... Open ...........Closed
    • ON............30,000'...........25,000'
    • OFF...........25,000'...........20,000'
  58. Maximum takeoff and landing altitude
    10,000' press alt.

    Note: Takeoff and landing operations above 8,000' press alt allowed only with the EEC's off.
  59. Maximum runway slope
    +/- 2%
  60. Maximum cabin differential pressure
    7.2 psi
  61. Normal cabin differential pressure
    7.0 psi
  62. Max window wiper speed
    160 KIAS
  63. Minimum Nh required for operation of the pneumatic deicing system
    80% Nh
  64. Main battery
    24V/ 36A, Ni-cad (GLA)
  65. Back-up battery
    24V/ 5A, Lead Acid (GLA)

    Note: back up battery must be armed for engine and APU starts.
  66. Minimum battery voltage
    • Battery start.........24V
    • APU start............22V
    • Normal Ops........20V
  67. Maximum load per main generator
    • Ground............400A up to ISA+27oc then 380A
    • SL to 27,000'..........................................400A
    • Above 27,000'........................................380A
    • For engine start........................................150A
  68. Maximum load per aux generator
    • Up to 18,000'...........150A
    • Above 18,000'..........140A
  69. Maximum load on APU generator
    • Up to ISA+35oc...............400A up to 16,000'
    • Above 16,000'...................................290A
    • Above ISA+35oc.............400A up to 15,000'
    • Above 15,000'...................................280A
    • Engine start.........................................150A
  70. Maximum battery temperature
    70oc
  71. Maneuvering load limit factor
    • Flaps up..............-1 to +2.8g
    • Flaps extended.....0 to +2.0g
  72. Use of autopilot in icing conditions is...
    prohibited
  73. Turn on AOA, TAT, SLIP, ENG AIR INLET, and IGNITION switches when...
    atmospheric or ground icing conditions exist
  74. During takeoff, activation of the leading edge deicers should be delayed until...
    reaching Vfs
  75. Define atmospheric icing conditions.
    When the OAT during ground operations or TAT inflight is 10oc or below, and visible moisture, standing water, slush ice or snow is present.
  76. Define ground icing conditions.
    When the OAT is 0oc or below, and visible moisture, standing water, slush, ice or snow is present.
  77. Minimum recommended airspeed in icing conditions
    • Gear up/ Flaps up........165 KIAS
    • Gear up/ Flaps 15o .....140 KIAS
  78. Visual cues for sever icing
    • Ice buildup on areas not usually observed to collect ice.
    • Accumulation of ice aft of the protected area.
    • Accumulation of ice farther back on the spinner than normal.
  79. Actions to exit serve icing conditions
    Immediately request priority handling from ATC to facilitate route and or altitude changes.
  80. Autopilot operations
    • Must be off for takeoff and landing
    • Minimum speed for AP/YD operation both engines is 110 KIAS (GLA)
    • Minimum speed for AP/YD operation single engine is 120 KIAS
    • AP must be disengaged prior to beginning a circling approach
    • AP is prohibited in atmospheric icing conditions
    • AP must not be used during descent unless a pitch trim check has been performed
  81. Autopilot/ Yawdamper minimum altitudes
    • Takeoff..............OCA or 500' AGL (GLA)
    • Cruise..............................500' AGL (GLA)
    • Visual approach................500' AGL (GLA)
    • Non-precision approach..........MDA (GLA)
    • Coupled ILS................................200' AGL
  82. Nav/ Comm equipment considerations
    • Do not operate Wx radar during refueling, near spills, or people
    • Aircraft must not be moved until all heading and attitude info is valid and both pilot ADI's
    • Approaches must be made with EFIS in angular mode
    • Fast/Slow indications invalid for flaps 15o and 25o
  83. Minimum oxygen required for dispatch
    • 2 pilots- 1270psi
    • 2 pilots and ACM- 1780psi
  84. Maximum allowable oil usage
    1qt for 3.5 flight hours.
  85. Primary exit when pressure refueling
    The forward main door and or the exit 5A.
  86. Primary emergency exit when overwing fueling
    • Right wing
    • Forward main door and exit 5A

    • Left wing
    • Floor level exit row 8 and exit 5C
  87. 'Chime' system comunication
    1 chime- FA will call the cockpit as time permits.

    2 chimes- FA will call the cockpit immediatley.

    Chimes inop- Pilot will call the FA via the PA.

    PA and chimes inop- Pilot will use the NO SMOKING sign for one chime or two. For one chime, the sign will be turned OFF until the FA has reached the cockpit, then turned back on. For two chimes, the sign will be switched OFF then back ON.
  88. Discreate notification of suspicious activity or seurity breaches in the cabin
    The FA will press the cockpit call button and place the handset in-between the jumpseat and continue service.

    The flight crew will try to call back the FA, with no answer. This should alert the flight crew that there is a problem.
  89. Emergency communication between the cockpit and cabin
    PA Inop- Pilot will ring the chimes in a continuous manor. More than three chimes will indicate that an emergency landing is imminent.

    PA and Chimes Inop- Pilot will flash the NO SMOKING sign multiple times.

    NO SMOKING sign Inop- Pilot will open the cockpit door and shout instructions.
  90. Runway conditions
    • 4" dry snow max
    • 3/4" slush max
    • 3' snow banks at taxiway and runway edge
    • Runway must be plowed full length and 100' wide or full width.
  91. Approach Vref speeds in icing conditions
    • Approach:
    • Flaps 25- add 15kts
    • Flaps 45- add 10kts
    • Approach speeds may also be increased by 5-10kts.

    • Go around (one engine inop):
    • V2- add 15kts

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