ML = Maximum Structural Landing Weight; wind and slope corrections do not apply.
Runway Slope Adjustments: Add 1500 lbs. per 1% uphill slope. Subtract 2000 lbs. per 1% downhill slope.
Wind Adjustments: Add 300 lbs. per knot headwind. Subtract 1200 lbs. per knot tailwind.
Note: If landing weight exceeds chart values, a waiting period of 27 minutes is required before making a subsequent take-off.
Structural weight limitations must be observed.
Example: Flaps: 28 degrees
Pressure Alt: 5000 feet
OAT: 90 degrees F
Wind: 8 knot tailwind
RW Slope: - 1%
Quick turn around weight limit: 140,800 lbs. minus 9600 lbs. (tailwind), minus 2000 lbs. (RW slope) equals 129,200 lbs.
DC-9-82 Quick Turn Around Weight Limits
LBS X 1,000
Landing Flap 40.
, Slats Extended
AMB TEMP F Pressure Altitude Ft.
0 1000 2000 3000 4000 5000 6000 7000 8000
-10 ML ML ML ML ML ML ML ML ML
0 ML ML ML ML ML ML ML ML ML
10 ML ML ML ML ML ML ML ML ML
20 ML ML ML ML ML ML ML ML ML
30 ML ML ML ML ML ML ML ML ML
40 ML ML ML ML ML ML ML ML ML
50 ML ML ML ML ML ML ML ML 145.9
60 ML ML ML ML ML ML ML ML 144.5
70 ML ML ML ML ML ML ML 145.8 143.0
80 ML ML ML ML ML ML ML 144.5 141.6
90 ML ML ML ML ML ML 145.8 143.2 140.5
100 ML ML ML ML ML ML 144.5 142.0 139.1
110 ML ML ML ML ML 145.9 143.2 140.5 138.0
120 ML ML ML ML ML 144.7 142.0 139.0 136.8
ML = Maximum Structural Landing Weight; wind and slope corrections do not apply.
Runway Slope Adjustments: Add 1500 lbs. per 1% uphill slope. Subtract 2000 lbs. per 1% downhill slope.
Wind Adjustments: Add 300 lbs. per knot headwind. Subtract 1200 lbs. per knot tailwind.
Note: If landing weight exceeds chart values, a waiting period of 27 minutes is required before making a subsequent take-off.
Structural weight limitations must be observed.
SYSTEM LIMITATIONS AND OPERATING PARAMETERS
Air Conditioning / Pressurization / Pneumatics
Limitations:
1.
Maximum cabin differential pressure ................................... 8.07 psi
2.
Maximum relief valve differential pressure .......................... 8.32 psi
3.
The air conditioning shutoff switch must be in AUTO for all takeoffs.
4.
If the air conditioning shutoff switch is inoperative:
Both air conditioning systems must be turned off for takeoff.
At least one air conditioning system must be turned on as soon as obstacle clearance is ensured but not below 400 feet or flap retraction (whichever is higher).
5. Takeoff and land unpressurized when using manual pressurization control.
Operating Parameters:
1.
Takeoff and land unpressurized.
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