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NOTE: Reduce electrical loads on APU alternator to allow APU to
provide maximum airflow.
The flight crew shall be alert for higher-than-normal TGT indications or
the possibility of a hot start.
1. UTILITY PUMP OFF/ARM ....................................................... OFF
2. Fuel Boost Pumps ................ ONE ON, REMAINING THREE OFF
3. Crossflow Valve (X FLOW) ................................................... OPEN
4. RAM AIR...................................................................................RAM
5. R AIR START IGN (1144 & Subs., Airplanes With ASC 151)....ON
6. Maximum Motoring RPM (16-22% HP RPM)................ ACHIEVED
At maximum motoring RPM:
7. R HP FUEL COCK ................................................................ OPEN
8. TGT ................................................................................ MONITOR
After the engine is stabilized at idle:
9. R AIR START IGN (1144 & Subs., Airplanes With ASC 151).. OFF
10. Utility Pump ................................................................................ON
Continued on next page →
Quick Reference Handbook
NORMAL PROCEDURES REVISION 7
Page NG - 8 May 30/02
High Elevation Airport Operations, ctd… OM 07-01-90
Left Engine Start:
CAUTION: USE ONLY ONE SOURCE OF BLEED AIR, EITHER
APU BLEED AIR OR CROSSBLEED AIR, TO START ENGINE.
Perform an alternate engine starting procedure as follows:
1. Available Bleed Air (Right Engine, If Required)............. INCREASE
2. Maximum Motoring RPM (16-22% HP RPM)................ ACHIEVED
3. L AIR START IGN (1144 & Subs., Airplanes With ASC 151) .... ON
At maximum motoring RPM:
4. L HP FUEL COCK..................................................................OPEN
5. TGT.................................................................................MONITOR
After the engine is stabilized at idle:
6. L AIR START IGN (1144 & Subs., Airplanes With ASC 151) ...OFF
7. Right Engine.............................................................................IDLE
8. Utility Pump OFF/ARM.............................................................ARM
Taxi:
Ground idle speeds may be lower than those required to keep the
alternators on line. It is recommended that the APU be left running
with the APU alternator on line for all ground operations.
CAUTION: USE ONLY ONE SOURCE OF BLEED AIR, EITHER APU
BLEED AIR OR ENGINE BLEED AIR, WHILE TAXIING TO PREVENT
POSSIBLE DAMAGE TO THE APU.
Takeoff:
1. Certain high elevation airports have preferential runways for
takeoff and landing, i.e., upslope for landing and downslope for
takeoff. Slope, headwind and tailwind conditions should be given
due consideration.
Continued on next page →
Quick Reference Handbook
REVISION 7 NORMAL PROCEDURES
May 30/02 Page NG - 9
High Elevation Airport Operations, ctd… OM 07-01-90
2. Stabilize engine power at 1.5 EPR and perform a rolling takeoff,
runway length permitting. With tailwind conditions, monitor LP
RPM limits when setting final takeoff power, during takeoff run and
during climb out. The Pilot Not Flying (PNF) should be briefed to
monitor LP RPM during takeoff and should be ready to adjust
power as necessary to avoid exceedances. The Pilot Flying (PF)
should be aware that a red “ENGINE EXCEEDANCE” warning
CAS message may occur during takeoff if LP RPM exceeds
95.5%. DO NOT BE COMPELLED TO ABORT THE TAKEOFF IF
THIS MESSAGE OCCURS. This is especially true when using the
autothrottle.
3. If COWL ANTI ICE or WING ANTI ICE is used for takeoff, select a
minimum of 1.2 EPR or higher before selecting ANTI ICE to ON.
4. Expect slower-than-normal acceleration to 60 knots.
Descent, Approach and Landing:
1. It may be necessary to increase cabin altitude for landing.
2. If the Landing Field Elevation (LFE) approaches 9,000 ft MSL or
higher, be prepared for a red “CABIN PRESSURE LOW” warning
message to be displayed on CAS.
3. If the LFE approaches 13,000 ft MSL, automatic deployment of
passenger oxygen masks is possible. The passenger masks may
be deployed manually or portable oxygen bottles may be made
available to the passengers to enhance passenger comfort.
4. The cockpit flight crew shall utilize oxygen any time the cabin
altitude is 10,000 ft MSL or higher.
5. On approach, start the APU and select the APU alternator to ON.
6. On approach, landing and rollout, be aware of True Airspeed (TAS)
and Ground Speed (GS). A 145 KCAS approach speed can
translate to 175 KTAS. Ground speed amplified by tailwind
conditions could exceed maximum tire speed on landing.
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湾流4快速检查单QRH GULFSTREAM IV QUICK REFERENCE HANDBOOK 1(20)
