Landing Gear

Question 1

Hand wheel turning limit? Wheel turning ljmit during pushback?

Answer 1

75 degs, 95 degs

Question 2

LG indicator panel supplied by? How many triangles to confirm?

Answer 2

LGCIU 1, 1 triangle

Question 3

LG speeds? Safety valve prevents at which speed?

Answer 3

VLO e - 250
VLO r - 220
VLE - 280
Cutoff speed- 260

Question 4

Hand wheel reduces to 0 at speed?

Rudder?

Answer 4

80kts

130kts

Question 5

Normal brakes- which sys? which hyd? When do they swap? Also controls?

Answer 5

BSCU
G
swaps with gear extension
NWS and antiskid

Question 6

Alternate brakes- which sys? which hyd? If antiskid lost, what happens?

Answer 6

ABCU
Y
Modulated to 1000psi with 7 applications

Question 7

Grav gear handle turning- what does it do?

Answer 7

Closes cut off valve to isolate hydraulics
Opens doors and unlocks gears
Drops gear by grav

Question 8

Autobrake decel light when?

Answer 8

80% of target value
Normal brakes avail
When spoilers exntended
Autobrake armed

Question 9

Rates of decel for auto brakes?

Answer 9

LO- 2 seconds after spoiler deploy and 2 m/s^2

MED- 2 seconds after spoiler deploy and 3 m/s^2

MAX- max pressure straight after spoiler deployment

Question 10

Anti skid- kicks in when wheel below how many times aircraft reference speed? Where does ref speed come from?

Answer 10

0.87 times

ADIRU 1,2 or 3, or if all failed, the max wheel speed

Question 11

When do spoilers replay (for Autobrake)?

Answer 11

72kts

Question 12

When do spoilers replay (for Autobrake)?

Answer 12

72kts

Question 13

Antiskid above speed? Can we get it in alternate braking?

Answer 13

20kts

Yes, but only if G and Y pressurised

Question 14

Max temp on a brake for parking brake useage?

Answer 14

500 degs the use chocks only

Question 15

Brakes got ecam when?

Answer 15

300 degs

Question 16

Deflated tires limits?

Answer 16

7t one tyre
3kts 2 on same gear
30 degs nws