Aircraft Related Abnormal Conditions:
Automatic ground spoilers actuator inoperative
Inboard ground spoilers inoperative
Right engine hydraulic pump inoperative
Approach idle fail high
Any other MEL item that requires a performance penalty
Runway Available Reduced From The Normal Length. The manual corrections found in this section will almost always be much larger than the corrections made by the Accuload system. This is due to the fact that Accuload takes into account more factors and is able to calculate penalties more precisely. The manual corrections cover wider ranges of variables, are very conservative, and usually will not compare with Accuload generated penalties.
Headwind/Tailwind Correction
For explanation of how to make the correction for a headwind or tailwind, refer to the instructions on page 11.
Low Altimeter Setting Correction
For an altimeter setting below 29.72, subtract the appropriate weight (found in the table below) from both the Runway Limit and Climb Limit gross weights.
-217/-217A
CORRECTION TO ALLOWABLE TAKEOFF WEIGHT FOR LOW ALTIMETER SETTING SUBTRACT CORRECTION FIGURE FROM THE ALLOWABLE TAKEOFF WEIGHT
ALTIMETER SETTING CORRECTION (POUNDS) ALTIMETER SETTING CORRECTION (POUNDS) ALTIMETER SETTING CORRECTION (POUNDS)
29.71 75 29.61 825 29.51 1575
29.70 150 29.60 900 29.50 1650
29.69 225 29.59 975 29.49 1725
29.68 300 29.58 1050 29.48 1800
29.67 375 29.57 1125 29.47 1875
29.66 450 29.56 1200 29.46 1950
29.65 525 29.55 1275 29.45 2025
29.64 600 29.54 1350 29.44 2100
29.63 675 29.53 1425 29.43 2175
29.62 750 29.52 1500 29.42 2250
Subtract another 75 lbs. for each 0.01 inch HG. below 29.42 inch HG.
Example: The sample problem on page 9 calculates a Runway Limit gross weight of 155,300 lbs. and a Climb Limit gross weight of 149,500 lbs. If the altimeter setting for takeoff was 29.52 the takeoff weight penalty is 1500 lbs. The corrected Runway Limit gross weight is 153,800 and the corrected Climb Limit gross weight is 148,000 lbs yielding a maximum allowable takeoff weight of 148,000 lbs.
Contaminated Runway
If the Flight Crew uses the Runway Analysis in the Flight Departure Paperwork to determine takeoff capability, the appropriate takeoff weight correction from the table below should be subtracted from the maximum runway limit weight.
-217
Contaminated Runway - Takeoff Weight Correction (lbs.)
SL to 6000 FT / Slope -1% to 1% / Tailwind Takeoff Not Authorized
Runway Length . Inch Slush or Water (2 Inches Dry Snow) . Inch Slush or Water (4 Inches Dry Snow)
Flaps 4. Flaps 11. Flaps 15. Flaps 4. Flaps 11. Flaps 15.
5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 TBD TBD TBD TBD TBD TBDTBDTBDTBD N/A N/A11,00011,00010,000 5,000 1,400 1,000 0 N/A 8,700 8,900 8,600 7,900 2,700 0 0 0 TBD TBD TBD TBD TBD TBD TBD TBD TBD N/A N/A 28,000 28,000 27,000 24,000 21,000 17,000 13,000 N/AN/A25,60025,90024,900 20,400 15,700 11,300 7,100
Note: Data for flaps 4. takeoffs was not available at the time of this revision.
Contaminated Runway
If the Flight Crew uses the Runway Analysis in the Flight Departure Paperwork to determine takeoff capability, the appropriate takeoff weight correction from the table below should be subtracted from the maximum runway limit weight.
-217A
Contaminated Runway - Takeoff Weight Correction (lbs.)
SL to 6000 FT / Slope -1% to 1% / Tailwind Takeoff Not Authorized
Runway Length . Inch Slush or Water (2 Inches Dry Snow) . Inch Slush or Water (4 Inches Dry Snow)
Flaps 4. Flaps 11. Flaps 15. Flaps 4. Flaps 11. Flaps 15.
5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 TBD TBDTBDTBDTBDTBDTBDTBDTBD N/A 9,000 9,000 8,700 8,300 5,400 0 0 0 N/A 9,000 8,800 8,600 8,300 2,400 0 0 0 TBD TBD TBD TBD TBD TBD TBD TBD TBD N/A N/A 26,500 26,700 26,700 24,100 19,100 14,400 10,000 N/AN/A26,10026,40026,200 21,400 16,500 11,800 7,200
Example: The sample problem on page 9 calculates a Runway Limit gross weight of 155,300 lbs. If there was .” of standing water on runway 8 the takeoff weight penalty for a flaps 11. takeoff would be 8300 lbs. (Interpolation between 8300 and 5400 is authorized if necessary.) The corrected Runway Limit gross weight is 147,000 lbs and the Climb Limit gross weight remains 149,500 lbs yielding a maximum allowable takeoff weight of 147,000 lbs. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：MD-80 Flight Manual 麦道80飞行手册 2(79)
