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below the floor in the cabin.
The minimum oxygen supply shall be determined for each flight using the OXYGEN
DURATION figure as a guide.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 1
LIMITATIONS
1-44 FAA APPROVED
11 October 2001
Figure 1-9: Oxygen Duration at Various Cabin Altitudes
100% AT 10,000
100% AT 15,000
100% AT 20,000
100% AT 25,000
100% AT 30,000
DILUTION AT 25,000
100% AT 35,000 AND ABOVE
DILUTION AT 20,000 AND BELOW
0 1
0
2 3 4 5 6 7 8
500
1500
1000
2000
DURATION (FOR CREW ONLY) IN MAN HOURS
CYLINDER PRESSURE IN PSI
ONE 50 CUBIC FOOT (1359 LITER) CYLINDER AT 70°F (21°C)
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 1
LIMITATIONS
FAA APPROVED 1-45
13 September 2000
1-45-00: ENGINE INSTRUMENTS AND CREW ALERTING SYSTEM (EICAS)
1-45-10: General EICAS Range Markings Colors:
Maximum and Minimum Limitations: Red Arc
Takeoff and Caution Range: Amber Arc
Normal Operating Range: White Arc
1-45-20: Powerplant EICAS Indications:
ENGINE PRESSURE RATIO (EPR)
No Limitation Markings
0.85 to 2.0: Pilot Selectable Command Marker
TGT°C (TGT)
800°C and above: Red Arc
715°C to 800°C: Amber Arc
0°C to 715°C: White Arc
% RPM LP (LP)
95.5% to 110%: Red Arc
0% to 95.5%: White Arc
% RPM HP (HP)
99.7% to 110%: Red Arc
97.5% to 99.7%: Amber Arc
46.6% to 97.5%: White Arc
0% to 46.6%: Red Arc
FUEL FLOW (FF)
No Limitation Markings
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 1
LIMITATIONS
1-46 FAA APPROVED
13 September 2000
OIL TEMPERATURE (OIL TEMP)
120°C and above: Red Digits
105°C to 120°C: Amber Digits
-30°C to 105°C: White Digits
-40°C to -30°C: Amber Digits
Less than -40°C: Red Digits
OIL PRESSURE (OIL PRESS)
30 psi and above: White Digits
16 psi to 30 psi: Amber Digits
0 psi to 16 psi: Red Digits
ENGINE FUEL TEMPERATURE (ENG FUEL TEMP)
120°C and above: Red Digits
90°C to 120°C: Amber Digits
-40°C to 90°C: White Digits
Less than -40°C: Red Digits
ENGINE ANTI-ICE PRESSURE (see Engine Anti-Ice Limits, Anti-Ice System this section)
60 psi: Red Light (on overhead panel)
1-45-30: Fuel EICAS Indications:
FUEL TANK TEMPERATURE (FUEL TANK TEMP)
54°C and above: Red Digits
-40°C to 54°C: White Digits
Less than -40°C: Red Digits
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 1
LIMITATIONS
FAA APPROVED 1-47
13 September 2000
1-45-40: APU EICAS Indications:
APU INSTRUMENT MARKINGS
EGT
732°C to 1000°C: Red Arc
680°C to 732°C: Amber Arc
0°C to 680°C: White Arc
RPM
110% to 120%: Red Arc
104% to 110%: Amber Arc
0% to 104%: White Arc
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 1
LIMITATIONS
1-48 FAA APPROVED
13 September 2000
1-49-00: AUXILIARY POWER UNIT (APU)
1-49-10: APU Operating Limits:
The APU can be operated on the ground, during takeoff, in flight, and during landing. In flight it
is an optional source of electrical power via the AUX PWR switch in lieu of one or both engine
driven alternators. The APU cannot be used to supply pressurization airflow in flight.
Maximum Permissible Exhaust Gas Temperature:
Up to 60% RPM during Start: 988°C
60% to 100% during Start: 821°C to 732°C (Linear Decrease)
Running: 732°C
Maximum Rotor Speed
All Conditions: 110%
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 1
LIMITATIONS
FAA APPROVED 1-49
13 September 2000
1-49-20: APU Starting Limits:
Continuous operation of the APU starter, when powered by airplane batteries, is limited to thirty
(30) seconds per start with maximum of three (3) consecutive start attempts. Before attempting
another start, allow twenty (20) minutes for starter to cool down. Three (3) additional start
attempts may be made, after which a one (1) hour cool down period must be observed before the
next full starter cycle is commenced.
Continuous operation of the APU starter when powered by an External DC power source is
limited to fifteen (15) seconds per start with maximum of two (2) consecutive start attempts.
Before attempting another start, allow twenty (20) minutes for starter to cool down. Two (2)
additional start attempts may be made, and if unsuccessful, a one (1) hour cool down period must
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