ATR 42 Limitations
Terms
undefined, object
copy deck
- Minimum Flight Crew
- 2 Pilots
- Maximum Operating Altitude
- 25000 FT
- Manuvering Limit Load Factors
-
Flaps Retracted +2.5 to -1 G
Flaps Extended +2.0 to 0 G
Gear Down +2.0 to 0 G - Cargo Door Operation
- Do not operate cargo door with a cross wind component of more than 45 kt.
-
Design Weight Limits
Taxi
Take Off
Landing
Zero Fuel -
Taxi = 37632
Take Off = 37258
Landing = 36160
Zero Fuel = 34259 -
Airspeeds
Vmo
Mmo
Va
Vfe 15
Vfe 30
Vfe 45
Vle
Vlo
Vra
Vwo
Maximum Tire Speed -
Vmo = 250
Mmo = 0.55
Va = 160
Vfe 15 = 160
Vfe 30 = 150
Vfe 45 = 130
Vle = 170
Vlo = 160
Vra = 180
Vwo = 160
Max Tire Speed = 165 Ground speed -
Take Off & Landing
Max Tail wind
Demonstrated cross wind
Take Off
Landing flaps 30
Landing Flaps 45
Max runway slope -
Max tail wind = 10 kt
Demonstrated cross wind
Take off = 45 kt
Landing 30 = 38 kt
landing 45 = 20 kt
Max slope = + or - 2% -
PW 120 Engine Temps
Max starting
Transient
Hotel mode
Max Cont
Take off
Reserve take off -
Start 950 for 5 sec
Transient 850 for 20 sec
Hotel mode 785
Max Cont 785
Take off 785
Reserve T/O 816 -
Ground operations
If wind is above 15 kt?
With prop in feather? -
If wind is above 15 kt avoid operations between 41% & 65% NP
Avoid operations above 50% torque with prop feathered - Icing conditions prop limitation
- Use of NP below 86% in icing conditions is prohibited
- Starter limitations
- 3 starts with a combined time of 1 min 30 sec followed by 4 min off
-
Fuel system
Usable fuels -
Jet A
Jet A1
Jet B No cross feed above 20 C
JP 4 is Prohibited
JP 5 - Max Fueling pressure
- 50 psi
- Max usable fuel
- 9920 lbs
- Max fuel imbalance
- 1212 lbs
- Fuel Pump Feeding
-
Each electric pump is able tosupply one engine in the whole flight envelope.
Each jet pump is able to supply both engines in the whole flight envelope except for take off -
Pressurization
Maximum differential pressure
Maximum negative differential pressure
Maximum differential pressure for landing
Maximum differential pressure for OVBD valve open selction
Maximum bleed off operation altitude -
Maximum differential pressure = 6.35 psi
Maximum negative differential pressure = -0.5 psi
Maximum differential pressure for landing = 0.35 psi
Maximum differential pressure for OVBD valve open selction = 1.0 psi
Maximum bleed off operation altitude = 20,000 ft -
Electrical System
DC GEN max load & time interval
Inverter max load & time interval
ACW GEN max load & time interval -
DC GEN
400A - None
600A - 2 min
800A - 8 sec
Inverter
500VA - None
575VA - 30 min
750VA - 5 min
ACW Gen
20 KVA - None
30 KVA - 5 min
40 KVA - 5 sec