EMB Limitations Updated: 06/07/05 Send comments/suggestions to
Required Crew 2 Pilots
The EMB-145 is certified in the transport category in the following conditions: Day, Night, Visual, Instrument, Icing.
Operational temperature limits: -54ºC, 52ºC
Takeoffs and Landings are limited to: Paved runway surfaces
Max temperature for aircraft is: ISA + 35º C
Minimum takeoff pressure altitude
Maximum takeoff & landing pressure altitude (ER/LR). 8000
Maximum takeoff & landing pressure altitude (XR). 10,000
Min/Max. SAT at FL ºC, -21.5ºC
Min/Max. SAT for takeoff: -40ºC, 52ºC
Max runway slope: ± 2% of runway length
Max. tailwind: 10 Kts
TAT above FL 250 is limited to: - 45º C
MX inspection needed when landing below: - 40º C
Vlo for retraction/extension 200 KIAS / 250 KIAS
Vle: 250 KIAS
Va: 200 KIAS
Max flap ext. speed for flaps 9: 250 KIAS
Max flap ext. speed for flaps 18: 200 KIAS
Max flap ext. speed for flaps 22: 200 KIAS
Max flap ext. speed for flaps 45: 145 KIAS
Max flap ext. speed for flaps 45 XR: 160 KIAS
When flaps are fully extended to 45 degrees, momentary airspeed deviations up to ___ are allowed: 155 Kt
Above 10,000’ with YD disengaged, max speed for flaps 22 (XR) 180 KIAS
Above 10,000’ with YD disengaged, max speed for flaps 45 (XR) 145 KIAS
Max demonstrated crosswind: 30 Kt
Max. airspeed after takeoff/climb without retriming: 160 KIAS
Max airspeed for turbulent air penetration below 10,000’ 200 KIAS
Max airspeed for turbulent air penetration below 10,000’ 200 KIAS and above 10,000’: 250 KIAS or M.63 whichever is lower
Max. windshield wiper operating speed: 170 KIAS
Do not operate windshield wiper: On a dry windshield
Max. imbalance allowed between tanks: 800 lb
Adopted fuel density: lb/gal
The Min/Max fuel tank temperature is: -40ºC, 52ºC
Max N1 100%
Min and Max N2 (ER/LR) 57%, 102.5%
Min and Max N2 (XR) 54%, 103.8%, 105% Fadec B8.0
Min and Max Oil Pressure (< 88%) N2) pre Fadec B7.6: 34, 95 psi
Min and Max Oil Pressure ( = B7.6: 34, 110 psi
Max oil pressure all operating modes: 115 psi
Max oil pressure all operating modes 115 psi for up to: 5 minutes
Max oil pressure all operating modes 115 psi for up to 5 minutes and __: 155 psi
Max oil pressure all operating modes 115 psi for up to 5 minutes and 155 psi up to : 2 mintes
The Min and Max Oil Pressure (< 88%) N2, may be exceeded during starts so long as the engine remains at idle and the oil temp is below: 21º C
The engine must remain at ____ until the oil pressure is less than __ PSI for Fadec < B7.6. Idle
The engine must remain at Idle until the oil pressure is less than __ PSI for Fadec < B
The engine must remain at Idle until the oil pressure is less than __ PSI for Fadec=> B
Min/Max Oil Pressure (=> 88% N2) ER/LR: 50, 95 psi/110psi(>B7.6)
Min/Max Oil Pressure (=> 88% N2) XR: 48, 95 psi/110psi(>B7.6)
Min/Max Oil Temp: 21ºC, 126ºC
To Increase N2 to 83%, oil temperature must be at least: 40ºC
To Increase N2 to 83%, oil temperature must be at least 40ºC. In lieu of this limit either run the engine for at least : 8 min.
To Increase N2 to 83%, oil temperature must be at least 40ºC. In lieu of this limit either run the engine for at least 8 min. or do a static runup to : 88% N2
To Increase N2 to 83%, oil temperature must be at least 40ºC. In lieu of this limit either run the engine for at least 8 min. or do a static runup to 88% N2, stabalize engines, and ensure oil pressure <= : 83 psi
A1E – oil pressure between 34 and 48 psi is permitted for a max of: 5 min.
Max ITT for Start: 800ºC
Max ITT for Start 800ºC A1E may be exceeded for up to : 5 seconds
Max ITT for Start 800ºC A1E may be exceeded for up to 5 seconds to a max temp of : 850ºC
Max ITT for Takeoff A1E : 992ºC
Max ITT for Takeoff A1E 992°C for __ seconds: 90
Max ITT for Takeoff A1E temp for 5 minutes: 970°C
LP and HP spool may be exceeded during take off and go around up to 2.5 IPS
LP and HP spool may be exceeded during take off and go around up to 2.5 IPS for 5 minutes
LP and HP spool may be exceeded in flight up to 2.5 IPS for 10 seconds
A1E – max N2 for engine airstart: 56%
Dry motoring continuous operation _ minutes on 5 minutes
Dry motoring continuous operation 5 minutes on _ minutes off. 20 minutes
Starting cycle – first to fourth: 1 minute on, then 1 minute off.
Starting cycle – first to fourth: 1 minute on, then 1 minute off. For fifth cycle: 1 minute on, then 20 minute off.
After start the engines must run at idle or taxi thrust for __ minutes for cold engines 4 minutes
After start the engines must run at idle or taxi thrust for 4 minutes for cold engines or _ minutes for warm engines. 2 minutes
Engine is considered cold if it has been shut down for more than 90 minutes
Engines must run for at least _ minute(s) at idle or taxi thrust before shutdown. 1 minute
Max altitude for starting APU is FL 300
APU EGT may exceed ___ 680ºC
APU EGT may be exceed 680ºC up to ___ 717ºC
APU EGT may be exceed 680ºC up to 717°C for a maximum of __ minutes. 5
Max operational altitude for APU is FL 370
The APU will automatically shut down at ___% rotor speed. 104%
Min battery temp for APU start: -20ºC
Start cycle for the APU: 1 st /2 nd attempt then 1 min. off then 1 min. off
Start cycle for the APU: 1 st /2 nd attempt then 1 min. off. Third attempt then: 30 min. off
Max load APU gen. Above FL A
Min AP engagement height is: 500 ft
AP disengagement height is ___ for Cat II 50 ft
AP disengagement height is 50 ft for Cat II, ___ for Cat I 200 ft
AP disengagement height is 50 ft for Cat II, 200ft for Cat I, ___ for Visual 200 ft
AP disengagement height is 50 ft for Cat II, 200 ft for Cat I, 200 ft for Visual and ______ for non- precision Before leaving MDA
Max altitude for flap extension: FL 200
Max differential pressure: 7.8 psi
Max differential over pressure: 8.1 psi
Max differential negative pressure: -.3 psi
Min temp for anti- ice operation: -40ºC
Max temp for anti- ice operation: 10ºC
Holding configuration in icing: Landing Gear __ up
Holding configuration in icing: Landing Gear up, Flaps 0º
Holding configuration in icing: Landing Gear up, Flaps 0º, min airspeed 200 KIAS
Minimum oil temp for starting: -40ºC
Approach mode can be selected within __ degrees of front course 90
Approach mode can be selected within 90 degrees of front course and within __ degrees of back course 70
Single engine approach and missed approach is _____ with autopilot engaged. prohibited
Max ISIS duration when operating on batteries is __ min. 40
Max ISIS duration when operating on batteries is 40 min. May be extend to __ min. if pitot 3 is turned off. 45