Differences 787-8/-9 Flashcards
What aircraft system differences
Alternate Ventilation
Engines
Flap
Fuel tanks
what are the dimension differences
length
height
wheel base
206’1” (20 ft longer)
4 inches higher
(Wheel base 10 ft longer)
what is the turn radius for the -8 and -9
138’4”
154’
What are the Weight limitations for the -8/-9
Taxi - 228,383 254,692
MTW - 227,930 252,011
MLW - 172,365 192,776
MZFW - 161,025 181,436
What is the change in the ventilation system
Changes how fresh air is drawn into the air distribution system by repositioning the outflow valves
What is the difference in the Cargo Temp switch position when it says OFF in red
on the -8 it means E/E has a failure has been detected but on the -9 it means it has been manually selected off or a E/E fault was detected
What is a difference in the RECIRC FANS from -8 to -9
-9 when smoke is detected in the aft E/E the lower recirc fan is shut off
What is the Eng differences
- 8 1B67 67,000 lbs
- 9 1B74/75 74,100 lbs
What are the minor differences in the Cargo Fire Det/Pro
More fire detectors
- 8 14 FWD, 6 AFT
- 9 18 FWD, 9 AFT
What is the difference in Flaps
3 additional T/O flap positions
FL 10
FL 17
FL 18
(gates are still at FL1 and FL20)
How does it change Load Relief for Flaps
Auto retraction to a safe position FL15-FL30
now 2 positions that dont give you protection
FL5
and new
FL10
What is the difference in Fuel tanks
Main tanks hold a little less and the center tank holds more
-8/-9 101,330 / 101,451 kg
(differences is minor, 121 kg)
less than filling your car twice
What is the differences with Jettison
-9 New Vent Mast
only restricts jettison to FL30
(-8 restricts FL20, FL25, FL30)
Plackarded on FUEL JETTISON panel
What is the differences in the operation of the taxi brakes
- 8 operate < 80 kts
- 9 operate < 30 kts
What is the difference on the Gear Doors
-9 1 sec after lift off doors open prior to gear handle up
(after 30 sec if gear not up doors close)
(does not work on GA, most be on grd > 30sec)
