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Gulfstream V Training Captain's Questions and Answers

 FlightSafety KSAV

EXTERIOR PREFLIGHT INSPECTION

How do you open the gear doors on the GV?  WARNING

(Do not attempt from inside NLG WELL)
(Ensure that personnel are clear of wheel wells

1. Pin the gear doors control valves open (nose gear valve down, main door valves up)
2. Turn on the External Battery
3. Activate the Ground Service Valve
4. Turn off the External Battery

What is the normal emergency landing gear extension bottle pressure? 

3100 psi @ 70° F

How many cubic inches of Nitrogen are available in the emergency extension bottles?

562 Cubic Inches Total, 150 Cu In. on the Left and 412 cu. In. on the right

Where in the Cockpit can you locate Emergency Gear Extension Bottle Pressure?

Summary Synoptic Page

How many Latches are on the Ray Dome?

6 Total, 4 Outside the Nose Wheel well, 2 Inside the Nose Wheel Well

There is a RED Guarded Toggle Switch inside the Ray Dome, what does it do?

It is a Static Source Error Correction Disable Switch, which is used to Test the Pitot Static System Validation for all 3 Air Data Computers. If the SSEC Switch is left in the ON position, all Air Data Computers Static Source information will be DANGEROUSLY INACCURATE. The FWC will also issue an amber SSEC 123 DISABLD message.

Explain how the Ice Detect probes work?

The system is active between 1500 feet AGL to 35,000 feet MSL
The Ice Detect probes vibrate at 40,000 hertz. In icing conditions when 0.020 of an inch of ice accumulates on the Ice Detect probe, the mass decreases the vibration by approximately 133-Hertz and turns on the anti-ice for the wing and cowl. After 5 seconds, a heating element clears the ice and resamples the icing conditions. If the ice continues to accumulate to 0.020 of an inch or greater the system continues to operate. If ice does not reaccumulate after 1 minute, the system will shut off:

1. L – R ICE DETECTED Message after 60 seconds
2. Cowl Anti-ice after 3 minutes
3. Wing Anti-ice after 5 minutes

Approximately how many degrees of travel will the over travel indicator pop up on the nose wheel steering collar?

› 83.6° (84°)

What is the normal nose wheel tire pressure?

115 psi

When will the Pressure Relief Valve open?

 10.28 – 10.48 PSID or  -0.25 PSID and 1 minute after outflow valve is fully opened on the ground

How many power sources are there for the outflow valve? 

3 total , 2 AC, 1 DC
Channel 1 = Essential AC Bus, Channel 2 = Right Main AC Bus,
Manual = Left Ess DC Bus

At what pressure and or temperature will the O2 blow out disk discharge?

1. Regulator O₂ pressure exceeds 90 psi
2. O₂ cylinder pressure exceeds 2600 psi
3. O₂ temperature exceeds 225° F

What is the normal and minimum O₂ pressure?

Norm. - 1800 PSI @ 70° F
Min. - 1500 PSI

What is the required Fuel Truck Pressure to refuel the Aircraft with single point refueling?

35-55 PSI

What is the purpose of the of the small rubber flapper valve near the outboard section of the wings leading edge?

Vents the wing Anti-ice with ram air to vent fuel fumes build up when wing A / I is off.

What will cause the "Cats Eye Indicator" to show white over black in the NAV / Strobe Light area?

If one side of the strobe Bulbs should fail.

Why are the NAV lights powered by two different power sources?

The NAV Lights are powered by two different power sources (NAV LTS #1 L MN DC BUS, NAV LTS #2 L ESS DC BUS). If the aircraft has to be towed at night, the NAV Lights can be turned on with just Battery Power without having to start the APU.

How many static wicks are on the wing? 

6, 3 each wing 

Where are they located? 

Out board of the Ailerons.

How many static wicks can be missing from the wings? 

2 only 1 per wing

What is the degree movement of the Ailerons?

± 11°

What is the degree movement of the Flight Spoilers?

+ 30° fully ext, + 55° with full 11° aileron movement

What is the degree movement of the Ground Spoilers? 

+ 55°

What will activate the Ground Spoilers, if ARMED? 

Wheel Spin-Up › 53 knots or WOW

When do the Flight Spoilers begin to move?

½° of aileron movement

What is the degree movement of the aileron trim tab?

± 15°

Where is the Aileron Trim Tab located? 

Left Aileron

What is the tire pressure of the main landing gear? 

188 – 192 PSI

At approximately what pressure will the Main Tire Over Inflation Safety Plug release?

375 – 435 PSI

At approximately what temperature will one of the four main fusible plugs melt and release pressure?

199° C or 390° F

At what altitude does the surge control valve open? 

16,500 feet when the APU Generator is ON

When should the Engine Oil be checked?

5 – 30 minutes after engine shut down

What should be done if the Engine Oil was not checked after engine shut down?

The engines must be started, run for 10 minutes, a normal engine Cool Down and then shut down to follow the same procedure.

What is the normal oil consumption rate of the BR710 Engine?

Approximately 0.1 pints per hour, however actually oil consumption is approx. 0.01 pints per hour.

How many static wicks are located on the elevator and rudder?

7

How many static wicks can be missing from the tail can be missing? 

2

How many Hydraulic DPI’s are on the aircraft?

10 total 5 left, 3 right, 1 PTU, 1 AUX

What is the max and min of the hydraulic replenisher?

1.5 gals max, 0.25 min

What is the normal capacity of the left HYD system? 

4.8 gals TOTAL, 2.0 gals in AUX

What is the total capacity of the left Hyd system? 

20.6 gals

What is the total capacity of the right Hyd system?

1.6 gals

What are the Hydraulic Accumulator Precharge pressures with both systems unpressurized?

1200 PSI @ 70°F / 21°C