Dash 8 Limitations

Question 1

Max Structural Weights

Answer 1

DH8-200
MRW 16556
MTOW 16466
MLW 15650
MZFW 14696

DH8-300
MRW 19595
MTOW 19505
MLW 19051
MZFW 17917

Question 2

Manoeuvring G Limits

Answer 2

Flap Retracted +2.5g/-1.0g

Flap Extended +2.0g/-0.0g

Question 3

Ambient Temperature Limits

Answer 3

48. 9C or ISA +35C

- 54C

Question 4

Crosswind and Tailwind Components

Answer 4

Hard Dry Runway
36 xw 10 tw

Standing Water, Slush or Loose Snow
20 xw Nil tw

Narrow Runway
20 xw 10 tw

Sup 3 permits 20kt tw

Sup 54 permits narrow runways

Question 5

Taxi Speeds

Answer 5

Standard Taxiways
25kt straight, 15kt turns

Narrow Taxiways
15kt straight, 10kt turns

Question 6

DH8-200 Engine Operating Limits

MCP - MTOP - Transient - Start
Reverse

Answer 6

ITT
800 - (20s) - 840 - (12s) - 900 - (5s) - 950

Torque
97.5% - 111% - 125%

Np
1212 - 1320

NL
104 - 104.3

NH
102.7 - 103.7

Reverse
90% - 770C - 1212Np

Question 7

DH8-300 Engine Operating Limits

MCP - MTOP - Transient - Start
Reverse

Answer 7

ITT
800 - (20s) - 840 - (12s) - 900 - (5s) - 950

Torque
90% - 105.6% - 115%

Np
1212 - 1320

NL
104 - 104.3

NH
102.7 - 103.7

Reverse
90% - 765C - 1212Np

Question 8

Engine and APU Starter Cranking Limits

Answer 8

1 min ON 2 min OFF
1 min ON 2 min OFF
1 min ON 30 min OFF

Question 9

Engine Ground Ops

Max Torque feathered and Unfeathered
Min NH

Answer 9

Q200
97.5% (50%)
66%NH

Q300
92.5% (48%)
66%NH

Question 10

When must Aux Fuel pumps be ON

Answer 10

For take off and landing

Question 11

Fuel Heater Operation limits

Answer 11

11C - 57C

Question 12

Max Fuel Imbalance

Answer 12

600lb

Question 13

Oxygen dispatch pressures

Flight Crew Fixed
Decompression O2 bottle
Portable O2

Answer 13

1300psi
1800psi
1100psi

Question 14

Pressurisation

Normal Cabin diff
Max cabin diff
Max cabin diff during taxi, take off and landing

Answer 14

5. 2psi - 5.8psi
6. 95psi
7. 5psi

Question 15

APU General limits

Answer 15

Ground ops only
Temperature -43C - 48.9C/ ISA+35
Attended by pilot or engineer during operation
APU Bleed air must be switched off before engine bleed air selected on
Shut down prior to takeoff
Ground De-icing should be avoided during use and bleed must be off if operating
Load of 1.0 may be exceeded only during engine start

Refuelling:
No gravity refuelling
No starting or shutting down during refuelling
Left fuel tank must have fuel to run APU during refuelling
Fuel truck must be 30’ from APU exhaust outlet

Question 16

AFCS Limits (11)

Answer 16

Cat 1 ILS only
Pilot must be seated with harness on during operation
Must not be manually overpowered
GS angles 2.5 - 4. Only flap 15 can be used for angles greater than 3.
Disengaged below 200' on approach and 1000' on climb / GA and 1000' OEI
APP mode not permitted with: 
-flap 35
-flap 5 below 1500'
-flap 0 below 500'
VOR without DME not permitted in NAV/APP
No Backcourse approaches
Disengaged in severe icing