NOT FOR OPERATIONAL USE !!!
Length
to elevator: 73.86m
to tail: 73.08m
General Electric GE90-115B
Fuel nozzles manifolds
20 outer
10 inner , OFF in idle des
L ENG FUEL VLV
Fuel Metering Unit
Fuel filter
OIL / Fuel Heat exchanger
2nd stage ENG fuel pump
1st stage ENG fuel pump
R
L Surge
Tank
C
L Jettison
Nozzle VLV
L1
2
M
ON
ER
L AIL
TO
PSA
APU
BAT
L
Backup L
GEN IDG
L ENG Gearbox
R
C
6
7
ISOL ISOL
L FLAP
-ERON
4
APU BAT
CHARG
STBY BUS
CONVERTER
400 Hz
ONLY 1 GEN
BACKUP
GEN 25kVA
APU
GEN
EXT
SEC
GND SERVICE BUS
AC Busses
DC Busses
Normal In-flight feed
Alternate feeds
Backup AC PWR
Standby Battery only
Standby with RAT
S
S
EXT
PRI
R
GEN
AFT
Outflow
Valve
R
R Backup
IDG GEN
Left HYD (Lemon)
Center HYD (Cyan)
Right HYD (oRange)
Fuel Manifold
APU Fuel Manifold
Electrical
Bleed Air Hot
Air Conditioning
Mechanical/other
ACEs (Color of HYD sys) L2
PRSOV Pressure Regulating
and Shut Off Valve
Fan Air Precooler
ENG Starter Valve
C
R
8
9
L2
R ENG Gearbox
L2
10
11
ALTN PITCH
TRIM Lever
Actuator
Control
Electronics
L1
Primary
Flight
Computers
Power
Supply
Assembly
L2
Stabilizer
R
RA
ILER
ON L1
ANALOG SIGNALS
C
AFDS-R
AFDS-C
AFDS-L
R
C FCDC BUS
PSA-C
R FCDC BUS
PSA-R
CAPT FLT INST BUS
L ENG GEN PMG
R ENG GEN PMG
R ENG GEN PMG
PFC-R
SECONDARY MODE
PFC
ACE
ARINC
F/CTL DATA BUS
R DC BUS
1 Min. BATTERY
HOT BAT BUS
1 Min. BATTERY
For colors see ELECTRICAL Legend
- Spoilers 4,5,10,11 locked out
- Proportional elevator command
- Degraded yaw damping
- Elevator feel with 2 feel forces
- Both trim switch move directly the - Rudder trim
- Rudder trim cancel switch
stabilizer
[ ] FLIGHT CONTROL MODE
- no automatic speedbrakes
DIRECT MODE - pitch control same
R
as secondary mode
- only Rudder trim, no cancel switch
RE
LEV
ATO
R
L2
ACE
Height: 18.85m
[ ] PRI FLIGHT COMPUTERS
M MECHANICAL BACKUP
ALTN PITCH TRIM
C
=
S
F
A/P
- Bank protection 35° ->30°
- Stall protection
- Yaw Damper
- Overspeed protection
- Thrust Assymetry Comp.
- Elevator variable feel
- Wheel to rudder x-tie
- Tailstrike protection
- Trim reference speed with automatic - Gust suppression
pitch compensation for thrust, gear, - Rudder trim
- Rudder trim cancel switch
flaps and speedbrakes changes,
- automatic speedbrakes
turbulence and turns to 30° bank
PFC
APU
Bleed
VLV
APU
Starter
VLV
AIR
C
14
L FCDC BUS
PSA-L
ACE
L2 R
R STCM
L1
13
PFC-C
L DC BUS
AP
L1 C
Non return Valve
Pump
Valve
HYD motor
Mechanical HYD Pump
Electrical HYD Pump
Pneumatical HYD Pump
Ventilation Fan
Smoke Detector
Fire extinguisher bottle
R
12
PFC-L
L ENG GEN PMG
M
L STCM
150
100
[NM] 50 100 150 200 250 300 350 400
ALTERNATE - Electric, L and R AC BUS, direct
[ ] FLAP/SLAT CONTROL
1 Min. BATTERY
F
M
200
[ ] FLAPS PRIMARY FAIL
HOT BAT BUS
APU
Shut off
VLV
L2
250
- Flap load relief, Autoslat
- Asymetry/uncommanded motion
SECONDARY - Electric, L and R AC BUS via FSEU
- Slat load relief >256kts
- Asymetry/uncommanded motion
S
C
R
ATO
LEV
C
R FLAP
-ERON
NORMAL MODE
R
PMG
LE
7th, Anti Ice Valve
RIGHT
HYD
S
Bulk Cargo
TO
PSA
L1
OTHER SYSTEMS
ELECTRICAL LEGEND
Rapid
bottles
F
F
AFT Cargo
R XFR BUS
ELECTRICAL
LEGEND
Cargo
AC
R UTIL
- FWD and AFT outflow valves
- CAC, Cabin Altitude Controller
- 2 positive relief valves, opens at 9.1 psi
- 4 negative relief valves
- 1’ at CRZ FL
Decompression
- 1‘ des to FL 290
Profile
- 4’ level at FL 290
FL
- 1‘ des to FL 250
400
- 12’ level at FL 250
- 3‘ des FL 140, total 22’
350
~177NM no wind
300
9th, High Press Valve
FLAPS & SLATS
- Center Hydraulic
PRIMARY
to
CARGO FIREFWD
F
F
F
F
R MAIN BUS
R
BUS
TIE
R
ELEC
DMD
C2
Metered
Bottles
C2
R TRUs
TRU TRU 120A
RAT
GEN
L
BUS
MAIN & APU TIE
GEN 120kVA
=
=
C1 C2
FLAPS
MOTORS
CENTER HYD
L MAIN AC BUS
R MAIN AC BUS
DC
RAT
APU BAT
CHARG
L UTIL
AIR
C1
R MAIN DC BUS
F/O FLT INST BUS
TO
PSA
TO
PSA
L XFR BUS
L
GEN
L2
5
R
PRESSURIZATION
4th, Low Press Bleed
Right Fuel SYS
same as Left
without APU
CTR L Override pump, valves
R Wing Anti Ice Valve
Jettison Pump and lines
CTR L Jettison VLV
Gear to gear
Outer track
12.90m Nose wheel
to main gear
31.22m
CENTER
HYD
STBY
INVERTER
APU BAT BUS
L
PMG
APU
Isol.
VLV
RAT deploys if
- both engines are failed and center system pressure is low, or
- both AC transfer busses are unpowered, or
- all three hydraulic system pressures are low
MAIN
BAT
L MAIN BUS
L2
L1
R
ENG
SOV
- Loss of trim air, CACTCS will provide average temp
ENG BLEED SYSTEM
X-feed VLVs
BACKUP Power when :
- only 1 main AC GEN available, or
- one or both main AC busses is lost, or
- APP mode is selected for autoland
HOT BAT BUS
TO
PSA
Center Tank
82’900 Kg
1
L MAIN DC BUS
CAPT FLT INST BUS
TO
PSA
BAT BUS
L
C1
TRU TRU
LEFT
HYD
3
C
L2
Bleed
system
left wing
identical
Bleed Isol Valves
to right L
C
R
wing
L
ENG
SOV
DC
APU
PMP
L FWD PMP
L Main Tank
31’300 Kg
Minimum width
for 180° turn
56.50m
SLATS
MOTORS
L ENG FUEL
SPAR VLV
L AFT PMP
Width
64.80m
L
ELEC
DMD
L Jettison PMP
Wing tip
turn radius
48.80m
R MAIN AC BUS
L MAIN AC BUS
CENTER HYD
ER
Tanks
- Main Tanks 31’300kg each
- Center tank 82’900kg
- Total 145’500kg usable
Preflight:
- Center Pumps ON if FUEL IN CENTER
and more than 4800kg in center
Inflight:
- FUEL LOW CENTER -> switch OFF pumps
- after 45min, scavenge of the 1200kg fuel
remaining in center tank in around 90min
with the main jettison pumps.
Jettison:
- rate 2500 kg/min with center tank
- rate 1400kg/min without center tank
- at least 3800kg remain in each main tank
Bypass Valve
Air Cycle Machine
Heat Exchangers
Flow Control & Shut OFF Valves
ACM
FLT CTL
R REV
70
RU
DD
55’791kg
1360kg
50
60
40
Total main tank fuel [t]
30
NORM
BRK
1300
Conditioned
Air Manifold
PFC
1500
Packs
- CACTCS (Cabin Air Conditioning and Temperature Control
System)
- Each pack has fully redundant dual channel
Upper Recirculation Fans
- Flow Control & Shut Off Valves operate pneumatically, are
Zone Trim Air Valves
springloaded close without pressure. Without control from
Trim Air Pressure & Shut Off Valves
ASCPC, valve opens with pressure.
Lower Recirculation Fans
- Pack can operate in stanby cooling mode [] PACK MODE L,R
AIR CONDITIONING
Flight Cabin Zones
Deck A B C D E F
RAT
1700
S
S
S
Cooling S
FWD Cargo
- 3 Starts in 60min for each starter,
electrical and air driven
- auto start if both AC XFR BUS lost
- 200kg/h APU GEN on GND
- 20kg/h per Pack on GND
- 150kg/h at FL380
- APU BLEED available <22’000ft
- 1 Fire Ext bottle for APU
- on GND & ENG OFF => Auto Fire Ext
1900 40’823kg
OVERRIDE mode [] EQUIP COOLING OVRD
- Supply fans stop
- Override valve close to supply and opens the skin exhaust
- Vent fan stops
- Cargo Heat Valve close, Vent Valve opens
- Smoke is evacuated outboard per differential pressure
Cabin
Air
ACE
Max. Imbalance, only for Normal OPS
2041kg
Heating
PSA
Imbalance [kg]
2100
APU
Cargo
Heat
Valve
Override Valve
Airplane Skin
Supply Fans
Air Filter
FLT CTLS
FUEL
Fuselage
Width
6.2m
R
L
R Pack
239’950 kg
352’441 kg
351’535 kg
251’290 kg
SS
FWD
Outflow
Valve
L Pack
MZFW
MTW
MTOW
MLW
Vent Fan
APU
375 million $
FWD Eqmt
Center
Main Eqmt
Center
Vent Valve
FLT CTL
L REV
Price
20.2.2020, Pierre-Michel Gasser, www.pmgasser.ch
Equipment Cooling, normal mode
- Supply fan runs, R primary, L backup
- Override valve open to supply and close to the skin exhaust
- Vent fan runs
- Vent valve opens if TAT >12.8°C
- Cargo valve opens if the Vent valve closes (mechanically linked)
EQUIPMENT
COOLING
Nose GEAR
& STEER
ALTN/RSV
BRAKES
FLAPS &
Main GEAR
B777300ER
Flight
Deck
- 27 million US$
- T/O Thrust max 115’540lbs / 513KN / ~110’000hp
- MCT Thrust 110’000lbs
- 1 FAN, 4 LP + 9 HP comp, 2 HP + 6 LP turbine
- 22 carbon fiber fan blades
- bypass ratio 9:1
- pressure ratio 42:1
- Thrust to weight ratio 6:1
- weight 8762kg
- fan diameter 330 cm, engine length 728cm
- N1 100% = 2355 RPM, limit 110.5% = 2602 RPM
- N2 100% = 9332 RPM, limit 121% = 11292 RMP
- EGT max 1090°C, 30 sec. 1095°C, MCT max 1050°C
- Oil temperature, max 132°C, 15min 143°C
- 2 Fire Ext bottles shared for both engines
STABILIZER
SPOILER 4 + 11
L1
R
TAB
ENGINES
FLIGHT CONTROLS
0
