Refer to figure or CAP696 file 4.12. The medium range twin jet transport is scheduled to operate from a departure airfield where conditions limit the Take-off Mass to 65 050 kg. The destination airfield has a performance limited Landing Mass of 54 500 kg. The Dry Operating Mass is 34 900 kg. Loading data is as follows:
| Taxi Fuel: | 350 | kg |
| Trip Fuel: | 9250 | kg |
| Contingency and final reserve fuel: | 1100 | kg |
| Alternate Fuel: | 1000 | kg |
| Traffic Load: | 18 600 | kg |
Check the load and ensure that the flight may be operated without exceeding any of the aeroplane limits. Changes in trip fuel caused by changes in the total mass may be disregarded. Which of the following statements correctly describes the situation?
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A
The aircraft is Zero Fuel Mass limited and the Traffic Load must be reduced to 14 170 kg.
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B
The aircraft may be safely operated with an additional 200 kg of Traffic Load.
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C
The aircraft may be safely operated with the stated Traffic and Fuel Load.
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D
The aircraft is Landing Mass limited and the Traffic Load must be reduced to 17 500 kg.
Refer to figure.
Check the maximum allowable takeoff mass which is the smallest of :
- Maximum takeoff mass = 65 050 kg
- Maximum Landing mass + trip fuel = 54 500 + 9250 = 63 750 kg
(Airplane is landing mass limited)
Check Operating mass:
Operating mass = DOM + takeoff fuel = 34 900 + (9250 + 1100 + 1000) = 46 250 kg
- Maximum allowed traffic load = TOM - Operating mass = 63 750 - 46 250 = 17 500 kg
Our given traffic load (18 600 kg) is exceeding maximum allowed traffic load (17 500 kg):
We have to reduce the traffic load to 17 500 kg.
Correct Answer: The aircraft is Landing mass limited and the traffic load just be reduced to 175 000 g.
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United Kingdom
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