EMB-145 Boxed Limitations

  1. Unpressurized Flight

    Maximum Altitude for operation after an in flight depressurization is:
    10,000 ft. MSL unless MEA or other constraints require a higher altitude.

    Maximum altitude when aircraft is dispatched for unpressurized flight is 10,000 ft.
  2. Maximum Operating

    VMO/MMO      320/.78 (1)
  3. MAX Operating (KIAS)

    8,000 to 10,000 ft. MSL VMO
    Red Line
  4. MAX Operating (KIAS)

    up to 8,000 ft. MSL - VMO
    VMO - 250
  5. Maximum Turbulence Penetration VB/MB
    250/.63 mach, whichever is lower.

    200 at or below 10,000 ft.
  6. Maximum Maneuvering - VA
  7. Landing Gear Extension - VLOE
  8. Landing Gear Extended - VLE
  9. Landing Gear Retraction - VLOR
  10. Flap Placard Speeds

    VFE Flaps 9°
  11. Flap Placard Speeds

    VFE Flaps 18°
  12. Flap Placard Speeds

    VFE Flaps 22°
  13. Flap Placard Speeds

    VFE Flaps 45°
  14. Maximum Wiper Operating
  15. Caution
    4. A full or nearly full rudder deflection in one direction followed by a full or nearly full deflection in the other direction, even at speeds below the design maneuvering speed, can dramatically increase the risk of structural failure of the vertical stabilizer or the rudder.

    •                             NOTE
    • *Momentary airspeed excursions that are due to wind gusts or turbulence are allowed up to 155 kts. with no crew or maintenance action required.

    *Steady state operation over 145 kts. is not allowed and must be entered into the AML.
  16. Maximum Operating Altitude
    37,000 ft.
  17. Minimum Takeoff and Landing Pressure Altitude
    -1,000 ft.
  18. Maximum Takeoff and Landing Pressure Altitude
    8,000 ft.
  19. Takeoff and Landing Temperature Limits:

    Minimum Temp.
    -40°C SAT
  20. NOTE
    In the event of a landing below -40°C SAT, the aircraft may not takeoff without further maintenance inspection.

    TAT in cruise flight above 25,000 ft. is limited to -45°C.

    Momentary deviations up to -50°C do not require maintenance action.
  21. Anti-ice/Deice
    Icing Definitions

    On the Ground and for Takeoff
    Icing conditions exist when...
    • OAT is 10°C or below
    • visible moisture in any form is present
    • clouds, fog, rain, snow, sleet and ice crystals

    when operating on ramps, taxiways or runways where surface snow, ice, standing water or slush may be ingested by the engines, or freeze on engines, nacelles or engine sensor probes.


    On the ground, do not rely on visual icing evidence or ice detector actuation to turn on the Anti-icing System. Use the temperature and visual moisture criteria as specified above. Delaying the use of the Anti-icing System until ice build-up is visible from the cockpit may result in ice ingestion and possible engine damage or flameout.
  22. Anti-ice/Deice
    Icing Definitions

    In Flight
    Total Air Temperature (TAT), is 10°C or below and visible moisture in any form is present (such as clouds, fog with visibility of one mile or less, rain, snow, sleet and ice crystals).


    Notwithstanding ice detector monitoring, the crew remains responsible for monitoring potential icing conditions and for manual activation of the Ice Protection System if icing conditions are present (known icing) and the Ice Detection System is not activating the Ice Protection System.
  23. Operation in Icing Conditions

    Minimum Temperature for Manual Anti-icing Operation
  24. Operation in Icing Conditions

    Maximum Temperature for Manual Anti-icing Operation


    Use Static Air Temperature (SAT) on the ground or for takeoff.

    Use Total Air Temperature (TAT) for operations in flight.


    There is no temperature limitation for automatic Anti-icing System operation.
  25. Takeoff on Contaminated Runways (AC 25-13)
    A runway is considered “Contaminated” when more than 25% of the required field length, within the width being used, is covered by

    • More than 1/8th inch (3 mm.) of:
    • Wet Snow
    • Slush or
    • Standing Water
    • More than 3/4 inches of Dry Snow
    • Dry Snow
    • Compacted snow
    • Ice
  26. Autopilot

    Minimum Engagement Height
    500 ft.
  27. Autopilot

    Minimum Disengagement Altitude:
    Instrument approach (APR or NAV mode) use MDA/DA/DH

    Visual approach (HDG or NAV as noted)..Traffic pattern altitude (1,500 ft. AFL)

    • NOTE
    • Visual approaches may be conducted in NAV mode when authorized by an Envoy Special Visual Approach Procedure in Flight Manual - Part 2.
    • The autopilot must be disconnected below 1500 ft. AFL
  28. Autopilot

    Single engine go-around with autopilot engaged is
  29. Autopilot

    Approach mode selection during localizer capture is allowed only...
    When aircraft is inbound.


    CAT I ILS Coupled go-around height loss may be 95 ft.
  30. Yaw Damper

    Yaw Damper operation is not authorized for:
    • Takeoff to 500 ft. AFL
    • Landing
  31. Attitude and Heading Reference System (AHRS)
    The aircraft must not be moved when the AHRS is in the initialization mode until all attitude and heading information presented on the PFD is displayed.
  32. Engine

    Engine Cool Down After Landing or High Power Runs
    Run each engine for a minimum of one minute at idle or taxi thrust before shutdown.
  33. Engine

    Minimum Dispatch Engine Oil Level before and after engine start
    The minimum dispatch oil quantity is eight quarts before Engine Start or seven quarts after Engine Start.
  34. Engine

    Engine Warm Up Prior to Takeoff
    The engines must be allowed to run at low thrust to stabilize engine temperatures before takeoff thrust is selected. Run the engine at idle or taxi thrust a minimum of four minutes for cold engines and two minutes for warm engines. An engine is considered cold if it has been shutdown for more than 90 minutes.

    Prior to increasing N2 above 83% , the engine oil temperature must be a minimum of 40°C. In lieu of this minimum oil temperature limit, it is acceptable to run the engine for at least eight minutes and ensure the oil temperature is in the green range prior to advancing the Thrust Levers for takeoff.
  35. Rolls Royce AE3007 A1, A1/3 Operating Limits

    T/O-1 [A1]

    T/O RSV [A1/3]
    (5 min. limit*:)


    N1(%) max

    N2(%) min-max
    ITT - 948°C

    N1(%) max - 100%

    N2(%) min-max - 57%-102.4%
  36. Rolls Royce AE3007 A1, A1/3 Operating Limits
    T/O-1 [A1/3]
    T/O [A1/3]
    (5 min. limit*:)


    N1(%) max

    N2(%) min-max
    ITT - 929°C

    N1(%) max - 100%

    N2(%) min-max - 57%-102.4%
  37. Rolls Royce AE3007 A1, A1/3 Operating Limits
    ALT T/O-1
    (5 min. limit*:)


    N1(%) max

    N2(%) min-max
    ITT - 917°C

    N1(%) max - 100%

    N2(%) min-max - 57%-102.4%
  38. Rolls Royce AE3007 A1, A1/3 Operating Limits
    Max Continuous


    N1(%) max

    N2(%) min-max
    ITT - 901°C

    N1(%) max - 100%

    N2(%) min-max - 57%-102.4%
  39. Rolls Royce AE3007 A1, A1/3 Operating Limits 

    Engine Start

    ITT - 800°C
  40. Rolls Royce AE3007 A1, A1/3 Operating Limits
    3. Engines may operate in the amber range up to 115 psi for five minutes in all thrust modes. Operations in the amber range above 115 psi up to 155psi is permitted for up to two minutes. Total time in amber range may not exceed five minutes. Operation in the red range is not authorized, for any aircraft. Any exceedance must be monitored and logged in the AML  by the crew.
  41. Rolls Royce AE3007 A1, A1/3 Operating Limits

    4. Minimum oil temperature for starting is 
  42. Rolls Royce AE3007 A1, A1/3 Operating Limits

    Minimum oil temperature for takeoff is...

    If oil temperature is less than____ perform...
    40°C, perform Engine Warm Up Prior to Takeoff Procedures located in this section.
  43. Starter Limits 

    On Ground: Starting or Dry Motoring
    1st to 4th cycles......
    Following Cycles....

    up to 5 min. ON, 5 min. OFF


    • 1 min. ON, 1 min. OFF
    • 1 min. ON, 5 min. OFF

  44. Flight Controls


    Maximum Altitude for Flap Extension
    20,000 ft. MSL

    • Flaps 9°, 18° [140],
    • or 22° [145] are the only authorized Takeoff configurations.
  45. Flight Controls

    Pitch Trim

    Maximum Airspeed after Takeoff/During Climb without Retrimming
    160 KIAS
  46. Miscellaneous

    Thrust Reverser Use
    • Thrust reversers are intended for use during rejected takeoff or landing only.
    • After initiating reverse thrust, a full stop MUST be made. MAXIMUM reverse thrust MUST be used:

    • Whenever stopping distance is deemed to be critical and its use will prevent a runway excursion.
    • When landing on runways with “Medium” or “Poor” braking action, unless the appropriate landing distance penalty [Flip Cards] is applied.
    • IDLE reverse MAY be used on:
    • Dry runways 7,000 ft. or shorter usable length (LDA)
    • Non-dry runways where braking action is “Good”
    • Thrust reverser use is PROHIBITED for:
    • Power-back operations
    • Taxi operations
    • Thrust levers stabilized in any intermediate position between IDLE reverse and MAXIMUM reverse.
  47. Operational Limits

    Demonstrated Crosswind
    Takeoff and Landing ...........................30 kts

    • Note
    • Reference Flight Manual – Part 1 for additional restrictions that may apply.
Card Set
EMB-145 Boxed Limitations
Memory Boxed EMB-145 Limitations