Limitations - Q400 Flashcards
Maximum Number of Occupants
Standard - 85 (74, 3, 2 + 6)
84 - 89 (78, 3, 2 + 6)
Max Ramp Weight
S - 29,089
84 - 29,665
Max Brakes Release Weight
S - 28,998
84 - 29,574
Max Landing Weight
S - 28,009
84 - 28,123
Max Zero Fuel Weight
S - 25,855
84 - 26,308
Forward Baggage (Locker 11)
413
Aft Baggage (Hold 41)
S - 1707
84 - 1270
Aft Baggage (Hold 42)
S - 453
84 - 454
Aft Baggage (Hold 41 and 42 combined)
S - 1707
84 - 1270
Manoeuvring Limit Load Factors
Flap retracted +2.5 g / -1.0 g
Flap extended +2.0 g / 0.0 g
Maximum operating altitude
25,000
Maximum operating altitude for takeoff and landing
10,000
Maximum operating ambient temperature limit
50°C or ISA +35°C whichever is lower
Minimum operating ambient temperature limit
-54°C
Maximum Runway Slopes
+2% - -2%
Crosswind and Tailwind Component - Hard Dry Runway
32 / 10 (10-20kts tailwind permitted per Flight Manual Supplement)
Crosswind and Tailwind Components - Standing Water, Slush, Loose Snow
14
Crosswind and Tailwind Components - Compacted Snow
20
Taxi Speed limits
Normal - 25 / 15
Narrow (15 - 18m width) - 15 / 10
Manoeuvring Speed (VA)
204
Turbulence Penetration Speed (VB)
210
Maximum Flap Extended Speed (VFE) F5 -
200
Maximum Flap Extended Speed (VFE) F10 -
181
Maximum Flap Extended Speed (VFE) F15 -
172
Maximum Flap Extended Speed (VFE) F35 -
158
Maximum Landing Gear Operation Speed (VLO)
200
Maximum Landing Gear Extended Speed (VLE)
215
Alternate Gear Extension Speed
185
Maximum Tyre Speed (Groundspeed)
182
Engine Maximum Operating Temperature
50°C or ISA+35 whichever is lower
Engine Minimum Operating Temperature
-54°C
Engine Maximum Airstart Altitude
20,000ft
Engine Automatic Takeoff Power Uptrim
10% torque (nominal)
With bypass doors open, MTOP and MCP power settings are limited to a maximum ambient temperature of
ISA+25
MTOP
106 / 880
NTOP
90.3 / 822
Max Continuous
100 / 880
Starting ITT
920 - 20 seconds
Transient
135 / 920
Max Reverse
35 / 880
Starting Time Limits
70 on 2 min off
70 on 2 min off
70 on 30 min off
Minimum SAT for engine relight is
-40°C
Total usable fuel
5318 kg
Maximum fuel imbalance between contents of main fuel tanks
272 kg
Tank Aux Pumps for takeoff and landing.
Required
Takeoff and continuous in-flight operation with the fuel heater outlet temperature indication
below 0°C or above 71°C
Prohibited
Minimum Hydraulic Fluid Quantity for Dispatch
40%, 40%, 45%
Oxygen - Standard Flight Crew Fixed
S - 1300psi, Jump - 1800psi
84 - 1050psi, Jump - 1450psi
Oxygen - Cabin Portable
1600psi
Pressurisation - Normal cabin pressure differential limit
5.46 ±0.1 psi
Pressurisation - Maximum cabin pressure differential limit
5.95 psi
Pressurisation - Maximum cabin pressure differential limit during taxiing, takeoff and landing
0.5 psi
Pressurisation - Maximum cabin altitude (pressurised flight)
8,000ft
Maximum altitude with the landing gear and/or flap extended
15,000 ft.
Maximum Flap Position during Alternate Gear Extension
Flap 15
APU General
Is for ground operations only.
Must be shutdown prior to takeoff.
Must not be operated unattended with passengers on board.
Must not be operated unattended during pressure refuelling.
Must not be operated during gravity refuelling.
APU ambient temperature limitations
Maximum: 50°C or ISA+35, whichever is lower
Minimum: -35°C
APU Start limits
1 min on 2 min off
1 min on 2 min off
1 min on 30 min off
APU Generator loads
1.0
Refuelling with the APU running
Gravity refuelling is not permitted
Starting or shutting down the APU during refuelling is not permitted
The left main fuel tank must contain sufficient fuel to ensure continuous running of the APU throughout the refuelling process
The fuel truck must be parked at least 9.2 m (30 ft) from the APU exhaust outlet
At ports not accustomed to refuelling Dash 8 aircraft, the re-fueller must be advised that the APU will be running
Position Error Correction (PEC)
20ft to DA
Main, Auxiliary and Standby Battery Takeoff Limitation
Load - 0.1
Min battery Temp - -20
Automatic Flight Control System (AFCS)
The AFCS is approved for autopilot approaches to CAT 1 limits only.
APP mode, autopilot engaged approaches, is approved for:
* Flap 0 (minimum altitude 1000 ft AGL)
* Flap 5, 10, 15 and 35
Other autopilot limitations are as follows:
* The autopilot must be disengaged in severe icing conditions
* During autopilot operation, the pilot flying must be seated at the controls with safety and shoulder harness fastened.
* Use of VOR without associated DME is not permitted in APP mode
* After takeoff or go-around, the minimum height for autopilot engagement is 1000 feet AGL
* On approach (precision or non-precision), the autopilot must be disengaged at or above 200 ft above runway elevation
* Flight in conditions of severe atmospheric turbulence with the autopilot engaged is prohibited
* An autopilot approach must not be commenced or continued with an inoperative
engine.
NOTE
The autopilot must be disengaged at or above 1,000 ft AGL
* Autopilot and flight director only approaches are approved for glideslope angle of 2.5° to a maximum of 4 degrees
* Autopilot approaches have been demonstrated in crosswind components up to 18 knots. This is not considered limiting.
Baggage Compartment Fire Extinguishing
Unless the forward and aft baggage compartments are empty, the airplane must not be operated further than 1 hour flying time from a suitable airport for landing.
Avionics
-HOT MIC select switches on the pilot and co-pilot ARCDU must be OFF and the INT/RAD switch on the observers Audio Control Panel must be centred, when using the cockpit speakers.
-With HF Comm installed, use of the HF transmitter is prohibited when the ADF is used as the prime means of navigation or for position confirmation.
- With Integrated Standby Instrument, MS 4—432835 or MS 4—456883, installed, the airplane must not be operated further than 1 hour flying time from a suitable airport for landing.
Contaminated Runway Operations
Standing Water, Slush or Loose Snow Limitations
For Operation from runways contaminated with standing water, slush, or loose snow:
* The maximum operating altitude for takeoff and landing is 6000 ft MSL
* The maximum permitted WED of contaminant is 15 mm
* The maximum permitted depth of contaminant is 60 mm
* For WED greater than 3 mm, selection of power levers aft of DISC is prohibited
* The maximum crosswind component for takeoff and landing is 14 knots
MTOP Time Limit
5 minutes
Max Oil Temp between discing and flight idle
125
Minimum Oil Temp for power above flight idle
0
Min Oil Temp for takeoff into icing conditions
55
then 65 within 3 minutes
Minimum Oil Temp to unfeather Propeller
-18
Maximum Oil Temp for completion of flight with a 20% reduction in power
115
Maximum allowable continuous NP overspeed
1071
Engine Ground Limit Maximum Torque
100%
Engine Ground Limit Minimum NH
64.2%
Maximum Wind Speed with the nose more that 30 degrees out of the wind
50kts
Normal Oil Pressure
61-72psi
Oil Pressure Limit (maximum) Starting
100 max
165 if OAT below 0
Transient Oil Pressure Limits
44-61
72-100
Normal Transient Limits 20 seconds
Oil Temp Normal
0-107
115 with Power reduced 20%
Minimum Oil Temp Starting
-40
Maximum Oil Temp Transient
125