MD-80 General Knowledge/Limitations

Question 1

Minimum and Maximum Landing and Takeoff Altitude

Answer 1

-1000 ft. and 8500 ft.

Question 2

VLe and VLr

Answer 2

300 kts. and 250 kts.

Question 3

VMo and MMo

Answer 3

340 kts and .84 Mach

Question 4

VFe

Answer 4

0º - 13º 280 kts

15º - 20º 240 kts

21º - 25º 220 kts

26º - 27º 200 kts / 205 kts MD83

28º - 40º 195 kts / 200 kts MD83

Question 5

Maximum Ramp Weight

Answer 5

150,500 lbs MD82

161,000 lbs MD83

Question 6

Maximum Takeoff Weight

Answer 6

149,500 lbs MD82

160,00 lbs MD83

Question 7

Maximum Landing Weight

Answer 7

130,000 lbs MD82

150,000 lbs MD83

Question 8

Maximum Zero Fuel Weight

Answer 8

122,00 lbs MD82 and MD83

Question 9

Maximum Cabin Differential Pressure

Answer 9

8.07 psi

Question 10

Maximum Emergency Pressure Relief

Answer 10

8.32 psi

Question 11

What is the Maximum Altitude the aircraft can fly at if inflight depressurization occurs?

Answer 11

14,000 ft.

Question 12

What is the maximum altitude the aircraft can be dispatched to for unpressurized flight?

Answer 12

10,000 ft.

Question 13

What is the maximum starting EGT of the APU?

Answer 13

760°C for 30 seconds at 100%

Question 14

What is the maximum continuous EGT of the APU?

Answer 14

630ºC at 100%

Question 15

What is the maximum transient EGT of the APU?

Answer 15

663ºC at 106%

Question 16

What is the max imbalance between wing tanks?

Answer 16

1,500 lbs

Question 17

What is the max imbalance between aux tanks?

Answer 17

400 lbs

Question 18

What is the maximum EGT for engine start on the ground and in the air?

Answer 18

475ºC on the ground

625ºC in the air

Question 19

Max gradients for takeoff and landing?

Answer 19

+1.7% and -2.0% for takeoff

+2.0% and -2.0% for landing

Question 20

What is the max amount of time it can take the APU to start?

Answer 20

30 seconds

Question 21

What are the starter duty cycle limitations for the engines?

Answer 21

90 seconds on 5 miutes off

30 seconds on 5 minutes off (cont.)

Question 22

What is the starter duty cycle for the APU?

Answer 22

90 seconds on 5 minutes off

90 seconds on 5 minutes off

90 seconds on 90 minutes off

Question 23

What are the battery charging limitss and normal range?

Answer 23

29 - 34 DC normal and 26 - 39 volts are the limits.

Question 24

What should be observed in battery amperage while charging?

Answer 24

0 - 65 amps to the left.

Question 25

What should the battery amperage be with the EMER power switch on?

Answer 25

10 - 50 amps to the right.

Question 26

What is the brake temperature limit for takeoff?

Answer 26

205ºC just one indication will prevent takeoff.

Question 27

What is the motor duty cycle for the landign lights?

Answer 27

1.5 seconds after initial extension and 3.5 minutes of rest between subsequent extensions.