Appendix/Other

Question 1

What in flight conditions are considered icing conditions?

Answer 1

Vis < 1600m, and
TAT ≤ 10˚C, or
SAT ≥ -40˚C

Or if you see any ice build up

Question 2

What is considered icing conditions on the ground?

Answer 2

OAT < 10˚C
Vis < 1600m
In visible moisture

Question 3

When should you apply a temp correction for your altimeter when OAT is less than ISA?

Answer 3

• MDA/DA
• Missed approach altitudes
• Minimum departure, en-route and approach altitudes

Question 4

What should you do if you do decide to apply a temp correction to an altitude?

Answer 4

Notify ATC

Question 5

When do you NOT need to apply temp corrections if the OAT is less than ISA?

Answer 5

• to correct barometric reference
• ΑΤC assigned altitude when under Radar control
• If airport temp is at or above min published for the procedure being flown
• If the reported temp is above 0˚C

Question 6

How does air conditioning affect takeoff performance?

Answer 6

Degrades performance and bleed air reduces thrust

Question 7

What is the most optimum V1/Vr ratio? What is the total range?

Answer 7

Range between 0.84 and 1 is optimum

Any decrease below 0.84 will increase TOD too much and 1 is the regulatory limit

Question 8

What are the acceptable V2 minimum values? Old vs fly-by-wire?

Answer 8

1. 2 Vs

1. 13Vs1g

Question 9

What are all the factors the FMGS considers when determining the optimum V1/Vr and MTOW?

Answer 9

TOR (N), TOR(N-1)
TOD (N), TOD(N-1)
Tyre speed
Brake energy
ASD
2nd segment
Obstacle limitations
1st segment
Final T/O

Question 10

What is the result of increasing V2 on ASD?

Answer 10

It has no DIRECT impact.
Increasing V2 will result in a higher Vr and for a given V1/Vr ratio will therefore result in a higher V1 speed and thus a higher ASD

Question 11

How does an increase in V2/Vs affect the MTOW limited by TOD, TOR, ASD? for a given V1/Vr ratio?

Answer 11

Decreases the MTOW limited by TOD, TOR, ASD.

All of these lines move down on the graph showing MTOW compared to V1/Vr ratio.

Question 12

What is the definition of a balanced field?

Answer 12

Ability to stop the aircraft or continue the takeoff at V1 is the same.
It has noting to do with actual airport dimensions/characteristics

Question 13

What is ACN and PCN? Definition of each?

Answer 13

Aircraft classification Number: Measure of stress aircraft exerts on the ground
Pavement classification number: value given to pavement to describe how much aircraft stress it can handle

Question 14

What do the PCN things mean?

F/A/X/T

Answer 14

F or R: flexible or rigid
A/B/C/D: high/medium/low/ultra low
X: pressure limit
T or U: data gained by technical survey or by usage

Question 15

How does ACN and PCN work to analyse weather you can land or not?

Answer 15

If your ACN is below the PCN you can land without further checks
-If your ACN is higher than the PCN you may be able to land by negotiation with the airport company

Question 16

How is the CoG defined on a large aircraft?

Answer 16

As a percentage of the mean aerodynamic chord

Question 17

What is the threshold between a low speed and high speed RTO? Who’s decision is it to make the ROT decision?

Answer 17

80kts

Captain’s decision, not necessarily the pilot flying

Question 18

What actions should the PF take in an RTO?

Answer 18

Close thrust levers
Speed brakes
Wheel brakes
Reverse thrust

Question 19

What consequences could there be in the case of a high speed RTO?

Answer 19

Brake overheat/ fire
Fuse plugs melt and tyres deflate
Aircraft evacuation (potential pax injuries)
Full emergency just from the RTO

Question 20

What happens when you continue a take off when the engine fails 2 seconds before V(ef)?

Answer 20

Safety margins reduced
Longer TOR
Longer TOD
Unlikely to crash
You will meet climb gradients but your net flight path may not clear by 35 ft (you will be closer to obstacles before you meet gradients)

Question 21

How does aircraft performance vary with an engine fire vs an engine failure?

Answer 21

Engine failure: 50% thrust loss immediately

Engine Fire: Engine is not shutdown until at least 400ft, it is assumed to have full thrust while it is on fire

Question 22

What is the minimum turnaround time determined by?

Answer 22

The amount of time it takes for the brakes to cool after the previous landing

( E(previous LDG) + E(from taxi) + E(for RTO) )- E(dissipated during turnaround)

Question 23

How does the CoG move throughout the flight in a large aircraft? What effect does this have on efficiency?

Answer 23

CoG will move forward

Reduces efficience

Question 24

What is committal height? What is committal height on a jet?

Answer 24

Height on approach below which you are committed to landing

No committal height for jets - they always have the performance

Question 25

What things should you consider in the case of a fuel leak?

Answer 25

Could it cause damage or fire?
Is there enough left to divert?

Some checklists require engine shutdown to diagnose source