Global oral questions Flashcards
What are the model designations for the Global Express
BD-700-1A10 for Global Express and XRS
BD-700-1A11 for Global 5000
What is minimum flight crew required?
One pilot one copilot
What is the Global Express XRS wingspan, length and tail height?
94’ wingspan 99’ 5” length 25’ tall
What is the minimum pavement width for a 180 deg turn?
68 feet (65 feet Global 5000)
What is the max ramp weight?
XRS 99,750 or 98,250 lbs
What is the max takeoff weight?
XRS 99,500 or 98,000 lbs
What is the max landing weight?
78,600 lbs
What is the max zero fuel weight?
56,000 lbs
Do not engage the starter if N2 exceeds?
42%
What are the starter duty cycles?
3 min on, 15 sec off, 3 min on, 15 sec off, 3 min on, 15 min off
What is the minimum oil temp for start?
-40
What is the minimum oil temp for advancing power above idle?
20
What is the max oil temperature?
160
What is the maximum oil consumption?
0.21 Quarts per hour
What is the minimum OAT for use of the oil replenishment system?
-12
When can the autothrottle be engaged?
<60 knots on the ground and >400’ AGL all engines operating
Name three limitations of the thrust reversers.
Must not be selected in flight, must not be selected for touch and go landings, must not be used for backing
What is the minimum engine oil perssure?
25 PSI
What is the thrust rating of the engines?
14,750 lbs @ S.L ISA to +20
When will the engine automatic ground start abort?
ENG RUN switch to OFF, N2 not >15% after 120s, idle speed not achieved within 120s, Starter cutout not reachwith within 3 min limit, IT exceeding 700 deg C
How are the thrust reversers controlled and powered?
Controller by EEC, powered by respective hydraulic EDP (1A or 2A)
What will occur if a thrust reverse becomes unlocked in flight?
EICAS message, aural warning, power retarded to idle, red REV icon on EICAS
What is the desired ground external air pressure for start?
40 PSI
For airplane operations in excess of 3 hours the oil system must be?
Verified full (>10.62 qts)
When can oil replenishment be conducted?
5 to 30 mins after shutdown (15 min for APU)
What is the max engine relight altitude?
30,000’
Which pumps supply normal hydraulic pressure to the hydraulic system?
3 ‘A’ pumps operating continously (1A, 2A EDP, 3A ACMP)
What is normal hydraulic operating pressure?
3000 PSI
What is the priority for the ACMP pumps?
3A - 3B - 2B - 1B
With an ACMP in AUTO, when will it start?
Either slats or flaps not IN/0 or system low pressure detected
How long with ACMP pumps operate when activated?
Min 5 mins
What is normal accumulator pressure of system 2?
500 psi
What is normal accumulator pressure of the RAT?
1000 psi
What is normal outboard brake accumulator pressure?
500 psi
What buses power the ACMPs?
3B - AC Bus 1, 2B - AC Bus 2, 1B - AC Bus 3, 3A - AC Bus 4
Which hydraulic system is powered by the RAT?
System 3
How is hydraulic case drain fluid cooled?
Heat exchangers in the left and right wing tanks (L Sys 1 and 3, R Sys 2)
What hydraulic pumps are available during single generator operation inflight?
EDPs, AC pumps 3A and 3B
What is the max fuel imbalance on the ground?
1100 lbs 20,250 lbs
What is the max fuel imbalance in flight?
1100 lbs
What is the max useable fuel load for the XRS?
45,100 lbs (wing 15,050, center 12,700, Aft 2,300)
Fuel in the centre tank must be considered unuseable unless?
Each wing is full at departure and planned cruise >30,000
Fuel in the aft tank must be considered unuseable unless?
Each wing contains >5,500 lbs and planned cruise altitude >30,000
What is the minimum fuel load for use of the centre or aft tank? (In these tanks).
500 lbs for xfer pump priming
What is the mimimum go around fuel?
600 lbs per wing
What is the miminum engine fuel temp for takeoff?
5 deg C
When must fuel crossfeed SOV be selected off?
Takeoff and landing
Which tanks can not be gravity fueled?
Forward or aft aux
What do the NACA scoops do?
Fuel venting during ground ops/refueling, positive pressure in flight
What is the maximum fuel level to test the PRVs?
Wings >11,800 lbs, Centre >8,000 lbs
When does the FRTT operate?
>34,000, single tank temp sensor -20 or average of sensors -9 deg C
When do the AC wing boost pumps operate?
ENG RUN switches to ON
Where is the fuel SOV located and how is it controlled?
Behind the aft pressure bulkhead, operated by fire discharge handle
When does fuel transfer from the centre tank?
Wing tank qty <93% full
True or false, centre tank fuel feeds the engines directly?
False, xfer to wings first
When does fuel transfer from the aft tank start?
Wing tank qty <5,500 lbs
When do the wing DC aux fuel pumps automatically operate?
One or both AC pumps low pressure, flaps >0, inflight with gear down, wing fuel qty 400 lb imbalance)
When will the AC boost pumps operate regardless of engine run switch position?
XFEED SOV open (to ensure balance during OEI)
Which wing tank normally provides fuel for the APU?
Right
Which fuel pumps can not be operated by the pilot?
Centre tank transfer pumps
When is wing fuel xfer inhibited?
Flaps >0, inflight with gear down, wing fuel
What is the power source for the refuel/defuel panel?
APU battery direct bus
During refuel SOV test, what does display of SOV FAIL message indicate?
Fuel flow will not stop when the tank is full
What are the sources of airplane generated AC power?
Four 40 kVA VFG, One 40 kVA APU generator, one 9 kVA RAT generator
How many AC buses does the AC electrical system have?
8, Four primary 1-4, Four secondary 1A-3A, AC ESS
What is the purpose of the ACPC?
To protect, control and distribute AC power to the main AC buses
Which buses are normally shed during single generator operation inflight?
AC buses 2 and 3
What is the primary / alternate power priority for the AC ESS Bus?
RAT Gen, Gen 4, Gen 1, Gen 2, Gen 3, APU Gen
What are the 6 primary source of DC power?
ESS TRU 1, ESS TRU 2, TRU 1, TRU 2, APU battery, avionics battery
What are the 4 main DC buses?
DC ESS bus, BATT Bus, DC Bus 1, DC Bus 2
How long will the aircraft batteries provide aircraft power?
Approx 15 mins
What it the primary / alternate power source for the DC ESS Bus?
ESS TRU 1, ESS TRU 2, TRU 2, TRU 1
Which DC buses are shed during single TRU operation?
DC Bus 1 and 2
What is the purpose of the DC Power Emergency Override switch?
By the DCPC to provide power from the ESS TRU’s directly to the SPDA’s
What is the pack discharge temp range for manual operation?
5-60 deg C (one pack must be off)
What is the normal and max cabin differential pressure?
Norm - 10.33 psi, Max - 10.73 psi, Delta P message - 10.85 psi
What is the maximum negative relief differential pressure?
Minus 0.5 psi
What is the maximum differential pressure for taxi and takeoff?
0.1 psi
What is the maximum differential pressure for landing?
1.0 psi
AUX PRESS is prohibited above what altitude?
41,000’
What is the priority bleed source for engine starting on the ground?
APU bleed air
What occurs when the BMC detects a bleed leak?
The BMC isolates the affected manifold by closing the appropriate valves
How are hot air leaks monitored in the airplane?
Dual loop detection / sensing elements connected to the BMC’s
Can one engine supply two packs simultaneously?
No, the BMC prevents two packs from being supplied by one engine. In case of single pack operation, the BMC automatically schedules high pack flow
How is air flow modulated from the pnuematic duct to the air conditioning units?
By modulation of the flow control valve (FCV) by the air conditioning controllers (ACSC)
What are the two functions of the air conditioning units?
Decrease air temperature and decrease the water content of the hot bleed air
When are the packs automatically shut off (FCV closed)?
Bleed failure, engine start, engine failure, ditching, pack inlet overheat, compressor discharge overheat, pack discharge over or under pressure
Turning the TRIM AIR switch to the ON position opens which valves?
The Hot Air Shutoff Valves (HASOV)
What are the two functions of the RAM AIR system?
Provide cooling for the heat exchangers of the packs, alternate source of fresh air
What are the requirements for using AUX PRESS?
Both packs inop, RECIRC ON,
What are the two primary modes of operation with the cabin pressure control in AUTO?
Primary (predictive uses AP and VNAV, Secondary (reactive) used p.alt and V/S
What are the warning messages associated with loss of pressurisation?
CAB ALT - 8200’ CAB ALT Warning - 9000’ or 1800’ > landing alt if landing above 7230 MSL
When selecting MAN pressurisation, what is displayed on the STAT page?
Both outflow valve position indicators, cabin rate analogue gauge
What is required to display the LDG ELEV in magenta on the STAT page?
LDG ELEV FMS/MAN selected to FMS, Landing dest. In FMS, Flight plan activated
What are the two cabin rate selections available in automatic and associated rates?
Normal - 500/300 fpm, High 800/800 fpm
What occurs when the EMER DEPRESS switch is selected ON?
Both outflow valves are commanded open, cabin alt. limited to 14,500’
What does selecting the DITCHING switch to ON provide?
Packs shutoff, cabin depressurised, OFV driven closed, sequence inhibited above 15,000’
What is the purpose of the safety valves (SFV 1 and 2) located in the aft bulkhead?
Ensure overpressure and negative pressure relief, provides an open position signal to the EICAS
When is cowl anti-ice required and prohibited?
OAT 10 in visible moisture or contaminated taxiways/runways, AUTO prohibited for takeoff
When is wing anti-ice required and prohibited?
OAT 5 in visible moisture or contaminated taxiways/runways, AUTO prohibited for takeoff, on prior to takeoff when using Type II or IV fluid
What are the conditions conducive to inflight icing?
Visible moisture and TAT 10 - minus 40
What is the operating limitation while holding in icing conditions?
Slats IN
What is the minimum engine speed while in icing conditions?
76% N2