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Reference Accelerate-Stop Distance = 3900 ft. (1189 m)
Reference Accelerate-Go Distance = 6800 ft. (2073 m)
Determine:
Effective Runway Length = 5300 ft. (1615 m)
Takeoff Decision Speed Ratio = 0.83
D. Enter the Flaps 20° MAXIMUM ALLOWABLE TAKEOFF GROSS WEIGHT Chart
with:
Airport Ambient Temperature................................................................................30° C
Airport Pressure Altitude ....................................................................................2000 ft.
Effective Runway Length.................................................................... 5300 ft. (1615 m)
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 5
SPECIAL
PERFORMANCE
5.5-4 FAA APPROVED
GIV-SP 31 May 2000
Determine:
Maximum Allowable Takeoff Gross Weight = 66,500 pounds (30,163 kg)
E. Enter the Flaps 20° TAKEOFF SPEEDS Charts with temperature, altitude and gross
weight from Step D.
Determine:
Rotation speed VR = 137 KCAS
Decision speed V1 = 114 KCAS
F. Enter the MINIMUM V1 FOR CONTROL ON GROUND, V1MCG Chart with
temperature, altitude and gross weight from Step D.
Determine:
Minimum Speed for Control on Ground V1MCG = 116 KCAS
G. V1 must be greater than V1MCG, so a higher V1 / VR ratio is necessary. An iterative
process is required to determine maximum allowable takeoff gross weight and correct
speeds.
Enter the Flaps 20° RUNWAY LENGTH AND V1 ADJUSTMENTS Chart with:
Reference Accelerate-Stop Distance = 3900 ft. (1189 m)
Reference Accelerate-Go Distance = 6800 ft. (2073 m)
Select speed ratio greater than 0.83 without increasing Reference Accelerate-Stop
Distance. Start iteration with takeoff decision speed ratio = 0.90.
Determine:
Effective Runway Length = 4300 ft. (1311 m)
H. Enter the Flaps 20° MAXIMUM ALLOWABLE TAKEOFF GROSS WEIGHT Chart
with:
Effective runway length = 4300 ft. (1311 m)
Determine:
Maximum Allowable Takeoff Gross Weight = 59,500 pounds (26,989 kg)
Enter the Flaps 20° TAKEOFF SPEEDS Charts
Determine:
Rotation speed VR = 128 KCAS
Decision speed V1 = 115 KCAS
Enter the MINIMUM V1 FOR CONTROL ON GROUND, V1MCG Chart with the
Maximum Allowable Takeoff Gross Weight of 59,500 pounds.
Determine:
Minimum Speed for Control on Ground V1MCG = 117 KCAS
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 5
SPECIAL
PERFORMANCE
FAA APPROVED 5.5-5
31 May 2000 GIV-SP
I. V1 is less than V1MCG, so further iteration is required. Repeat Steps G and H at
higher takeoff decision speed ratio until V1 is greater than or equal to V1MCG.
EXAMPLE 3: Determine VMBE for given conditions.
Given: Airport Ambient Temperature....................................................................................-5° C
Airport Pressure Altitude ....................................................................................10,000 ft.
Flaps ..............................................................................................................................20°
Takeoff Gross Weight ...................................................................70,000 lbs. (31,752 kg)
Headwind ..............................................................................................................10 knots
Runway Slope .................................................................................................................. 0
Solution:
A. Enter the Flaps 20° MAXIMUM V1 FOR BRAKE ENERGY LIMITS, VMBE Chart
at -5° C to check VMBE. Proceed right to 10,000 ft. then up to 70,000 lbs. (31,752
kg). Proceed left following the wind correction guidelines from the Reference axis to
10 knots headwind. Read VMBE = 167 KCAS.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 5
SPECIAL
PERFORMANCE
5.5-6 FAA APPROVED
GIV-SP 31 May 2000
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 5
SPECIAL
PERFORMANCE
FAA APPROVED 5.5-7
31 May 2000 GIV-SP
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 5
SPECIAL
PERFORMANCE
5.5-8 FAA APPROVED
GIV-SP 31 May 2000
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 5
SPECIAL
PERFORMANCE
FAA APPROVED 5.5-9
31 May 2000 GIV-SP
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 5
SPECIAL
PERFORMANCE
5.5-10 FAA APPROVED
GIV-SP 31 May 2000
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 5
SPECIAL
PERFORMANCE
FAA APPROVED 5.5-11
31 May 2000 GIV-SP
GULFSTREAM AEROSPACE
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湾4飞机飞行手册AFM Gulfstream IV AIRPLANE FLIGHT MANUAL 2(3)
