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Refer to figure or Flight Planning Manual MRJT 1 Figure 4.5.1). 
Find: Time, Fuel, Still Air Distance and TAS for an enroute climb 280/0.74 to FL350. Given:

Brake release mass 64 000 kg 
ISA -10°C 
Airport elevation 3000 ft

  • A
    24 min, 1850 kg, 139 Nautical Air Miles NAM, 383 kt
  • B
    24 min, 1775 kg, 139 Nautical Air Miles NAM, 383 kt
  • C
    24 min, 1850 kg, 148 Nautical Miles NM, 391 kt
  • D
    24 min, 1950 kg, 139 Nautical Air Miles NAM, 383 kt

Refer to figure.
1. Enter the table's first column on the left and find the row with 35 000 ft (FL350).
2. Then, move across the same row to the columns that correspond to a brake release mass of 64 000 kg. Take note of the values for air distance (139 NAM), True Airspeed (383 kt), time (24 minutes), and climb fuel (1850 kg).

3. Since our airport is at 3000 ft elevation, we need to adjust for this. Use the High Elevation Adjustment table at the bottom of the page, checking values for 4000 ft and 2000 ft, which give adjustments of -100 kg and -50 kg. Interpolate between these to find the adjustment for a 3000 ft elevation airport, resulting in a correction of -75 kg.

  • Therefore, the final climb fuel needed is 1775 kg (1850 kg - 75 kg).

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