Boeing 787 Limitations

Question 1

What is the maximum and minimum runway slope?

Answer 1

+-2%

Question 2

When can you take off with a tail wind between 10-15 Kts?

Answer 2

• OPT calculation performed
• Runway is clear and dry
• Antiskid and thrust reversers are fully operational
• Max takeoff rated thrust is used.

Question 3

What is the maximum unrestricted tailwind for take off and landing?

Answer 3

10 kts

Question 4

What is the maximum and minimum Glide Slope angle for an Autoland? And if greater than 3.25 when must you disengage the Autopilot?

Answer 4

3.25 maximum
2.5 minimum

Not Below 100ft AGL (Autopilot not capable to auto land)

Question 5

What is the minimum Auto Pilot engage height after take off?

Answer 5

200 ft

Question 6

What is the minimum oil temperature for an engine start?

Answer 6

-40

Question 7

What is the turbulence penetration speed?

Answer 7

Maintain 290 knots when below 25000 ft

AT 25000 ft and above: maintain 310 kts or 0.84 Mach, whichever is lower

Question 8

When can you land in tailwind greater than 10 kts to maximum 15 kts?

Answer 8

• Aircraft performance landing weights are verified by OPT, Performance, LANDING FIELD LIMIT WEIGHT
• Antiskid and thrust reversers are fully operational
• Flaps 30 landing
• Auto speed brakes are used
• No braking action reports less than GOOD

Question 9

What is the Maximum Operating Altitude?

Answer 9

43,100 ft Pressure Altitude (B787-9)
41, 100 ft Pressure Altitude (B787-10)

Question 10

What is the maximum Takeoff and Landing Tailwind Component?

Answer 10

15 kts

Question 11

What is the Maximum Altitude for Takeoff & Landing?

Answer 11

14,000ft Pressure Altitude

Question 12

What is the maximum allowable difference between Captain’s or First Officer’s altitude display and field elevation for RVSM operation?

Answer 12

Prior to takeoff the maximum allowable difference between Captain’s or First Officer’s altitude display and field elevation is 75 feet.

Question 13

What is the Minimum tank fuel temp prior to T/O?

Answer 13

-29 C

Question 14

What is the Minimum tank fuel temp in flight?

Answer 14

In-flight tank fuel temperature must be maintained at least -42°C, as well as 3°C above freezing point of fuel being used

Question 15

What are the fuel loading restrictions if Center tank fuel is loaded?

Answer 15

Main tanks must be scheduled to be full if centre tank fuel is loaded. Centre tank may contain 10,000kg of fuel with less than full main tanks provided that center tank fuel + actual ZFW do not exceed MZFW, and CG limits are observed.

Question 16

What are the fuel loading restrictions if Center tank fuel is loaded?

Answer 16

Main tanks must be scheduled to be full if centre tank fuel is loaded. Centre tank may contain 10,000kg of fuel with less than full main tanks provided that center tank fuel + actual ZFW do not exceed MZFW, and CG limits are observed.

Question 17

What are the limitations on the use of the GPWS LOOK AHEAD TERRAIN ALERTING and TERRAIN DISPLAY Function?

Answer 17

Prohibited within 15 nm of takeoff, approach, landing at any airport not contained in GPWS database. Do not use terrain display for navigation

Question 18

When must weather radar operation be avoided?

Answer 18

Avoid weather radar operation in a hangar, avoid weather radar operation when personnel are within the area normally enclosed by the aircraft nose radome

Question 19

What is the limitation for brakes release when performing a pre-takeoff static engine run-up (in cold weather conditions), or a rolling takeoff with an aft CG configuration?

Answer 19

Brakes release above 55% N1 is prohibited. A tip-up can occur and directional control can be reduced.

Question 20

Is intentional use of reverse thrust in-flight allowed?

Answer 20

No, intentional selection of reverse thrust in-flight is prohibited

Question 21

Can the airplane be backed using reverse thrust while on the ground?

Answer 21

No, backing the airplane with use of reverse thrust is prohibited

Question 22

When must you NOT operate HF radios?

Answer 22

When refuelling.

Question 23

Can you fly in RVSM with ISFD alone?

Answer 23

No, the standby altimeter does NOT meet RVSM altitude requirements.

Question 24

What is the Maximum demonstrate cross wind for T/O and landing on the B787-9 and the B787-10

Answer 24

B787-9 = T/O - 33kts (gust included)
Land 40kts (gust included)
B787-10 = T/O -37kts (gust included)
Land 35kts (gust included)

Question 25

What is the minimum Autopilot engage height after take-off?

Answer 25

200ft

Question 26

What is the maximum pressure altitude for an auto land?

Answer 26

8400ft Pressure Altitude

Question 27

Without LAND2 or LAND 3 Annunciated, disengage the autopilot by which alitiude on the Boing 787-9 and B787-10?

Answer 27

B787-9 = 135ft
B787 - 10 = 100ft

Question 28

If the glidepath angle for approach is greater than 3.77 degrees, the autopilot must be disengaged no later than what altitude?

Answer 28

50ft below DH/MDA

Question 29

What are the wind limits for a “HUD Takeoff required”for LVTO in RVR of <125m to ≥75m?

Answer 29

Headwind 25 knots
Crosswind 10 knots
Tailwind 15 knots

Question 30

What is the Maximum wind component for an Autoland in LVP condition?

Answer 30

Headwind 25 knots
Crosswind 25 knots
Tailwind 15 knots

Question 31

When is Flight Level Change prohibited?

Answer 31

On final approach below 1000ft AAL. (Above Airfield Level.)

Question 32

In what flight control modes is take off permitted?

Answer 32

Only in the “Normal flight control mode”

Question 33

What are the ground wind limitation?

Answer 33

For crosswinds greater than 40 knots, limit thrust to a setting normally used for taxi (45% N1)
• with a tailwind component greater than 5 knots and winds greater than 35 knots, limit thrust to a setting normally used for taxi (45% N1)
• for winds greater than 55 knots, limit engine thrust to idle.