G5 Sytems

Question 1

Aircraft General

What are the maximum weights associated with the G550?

                   Zero fuel
                      Ramp
                   Takeoff
                    Landing

Answer 1

Max zero fuel = 54,500 lb
Max ramp = 91,400 lb
Max Takeoff = 91,000 lb
Max landing = 75,300 lb

Question 2

Aircraft General

What is the minimum taxi strip width needed for a 180 degree turn based in a maximum nose wheel deflection of 80 degrees?

Answer 2

62”.

Question 3

Aircraft General

 What are the length, height, and wingspan of the G550

Answer 3

Length= 96'5"
Height= 25'11"
Wingspan= 93'6"

Question 4

Electrical

What are the specifications of the Engine driven generators?

Answer 4

Integrated Drive Generators consist of a Constant Speed Drive and a oil cooled generator all in one.

Rated at

40 KVA
115 volt 400 hz 3 phase electrical power

Question 5

Electrical

The main aircraft batteries are rated at

Answer 5

24v/ 53 amp/hour

Question 6

Electrical

What is powered by the avionics e batts?

Answer 6

1. (2) clocks
2. Standby flight display (SFD)
3. Electronic bearing and distance indicator
4. Gear handle and lights
5. MCDU 1 (engine instruments)
6. MCDU 3. (Standby radio tuning)
7. Captains audio panel

Question 7

APU

The APU is guaranteed to start at or below what altitude?

Answer 7

39,000’

Question 8

APU

Will the APU shut down automatically upon detection of a fire?

Answer 8

Yes. During ground and in flight operations if the APU fire detection circuit detects a fire except during use of the test switch

Question 9

APU

After an APU start when will the APU load control valve allow APU for engine start and pack operation?

Answer 9

The load control valve will not open on the ground for 60 seconds. This function is removed in flight.

Question 10

APU

Fuel is supplied to the APU from where?

Answer 10

The left wing fuel hopper using the left main fuel pump. (May use the right main rank and pump if cross flow valve is open)

Question 11

Electrical

How many ground service bus switches are there and where are they located?

Answer 11

Three

• forward external switch panel
• tail compartment electrical power control panel
• system monitor test panel

Question 12

Electrical

When will the main battery switches in the overhead panel illuminate on?

Answer 12

The main batteries are powering the ESS DC buses:

• starting the APU
• AUX hydraulic pump is operating
• when Batts are powering essential DC bus(s)

Question 13

Electrical

How many E batts are there?

Answer 13

4 total. ( 2 avionics and 2 lighting)

Question 14

Electrical

When emergency power system is armed, when will the e batts activate?

Answer 14

Any time either L or R ESS Bus power drops below 20v

Question 15

Poweplant

Pulling the Engine Fire Handle will shut off what items on the associated side?

Answer 15

Fuel
Hydraulics
Electrics

Question 16

Powerplant

What is the starter duty cycle?

Answer 16

Three starts with a maximum of three minutes per cycle

Delay 15 seconds between start cycles

After three start cycles, delay use of the starter for at least 15 minutes.

Question 17

Powerplant

What is the preferred Engine Airstart procedure?

Answer 17

Automatic

Question 18

Hydraulics

What items are lost if you love e R Hydraulic System Pressure?

Answer 18

R Thrust Reverser

Redundant Hydraulics to the flight controls.

Question 19

Hydraulics

The PTU is driven by the right hydraulic pressure and USES left hydraulic system fluid. When armed, what will cause it to turn on automatically?

Answer 19

The PTU will turn on automatically if L hydraulic system pressure drops below 1500 psi.

Question 20

Hydraulics

What conditions will prevent automatic PTU operation when the PTU is armed?

Answer 20

• HYD system quantity below 1.5 gallons

- R HYD system fluid 104 C or greater.

Question 21

Hydraulics

When armed, what will cause the AUX HYD pump to turn on automatically?

Answer 21

Brake pedals depressed > 10 degrees with no other source of power to the brakes.

Question 22

Hydraulics

The AUX HYD pump is capable of powering what items?

Answer 22

Nose wheel steering
Main entrance door 
Flaps
Brakes 
Standby Rudder (YD 1)

Question 23

Flight Controls

In the event of a Aileron Hardover Protection System (HOPS) activation, HYD power is shut off to what surfaces?

Answer 23

An Aileron HOPSwill deactivate hydraulics to BOTH aileron actuators even if only one actuator sensed a Hardover. The spoiler actuators will still have power.

Question 24

LG and Brakes

What is Emergency Landing Gear Nitrogen Blowdown bottle pressure?

Answer 24

3100 PSI

Question 25

LG and Brakes

What is the tire speed limit?

Answer 25

195 knots ground speed

Question 26

LG and Brakes

Anti skid braking is available from which hydraulic systems?

Answer 26

L HYD system
PTU
AUX HYD system

Question 27

Pneumatics

What is the maximum permitted cabin pressure altitude differential in flight?

Answer 27

10.48 psi

Question 28

Pneumatics

What is the maximum cabin pressure differential for taxi, takeoff or landing?

Answer 28

0.3 PSI

Question 29

Pneumatics

What cabin altitude will cause the passenger oxygen masks to deploy?

Answer 29

14,750 +/-250