10 / 20

Refer to figure or CAP 697 file 2.2.1.
Given the following information, determine the fuel flow and TAS:

ISA + 20°C
Pressure altitude: 2500 ft
Manifold pressure: 25.0 In.Hg

  • A
    13.7 gallons per hour and 166 KTAS.
  • B
    13.8 gallons per hour and 167 KTAS.
  • C
    14.1 gallons per hour and 171 KTAS.
  • D
    14.0 gallons per hour and 170 KTAS.

Refer to figure.
To solve this question, we simply need to extract the data from the table provided:

  1. Select the appropriate temperature deviation block: +20°C (ISA dev).
  2. Enter the block at cruising level 2000 ft and 4000 ft.
  3. Continue horizontally to the right and read the fuel flow of 13.7 gallons per hour and KTAS of 166 kt for 2000 ft and the fuel flow of 14.1 gallons per hour and KTAS of 171 kt for 4000 ft, under the “GPH” and KTAS columns, correspondingly.
  4. After interpolating for cruising level 2500 ft, we get: fuel flow 13.8 gallons per hour and KTAS 167 kt.

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.

  • United Kingdom
    32
  • Poland
    9
  • France
    7
  • Austro Control
    6
  • Spain
    4
  • Sweden
    4
  • Greece
    2
  • Ireland
    2
  • Lithuania
    2
  • Denmark
    1
  • Hungary
    1
  • Norway
    1
  • Portugal
    1
  • Romania
    1
  • Thailand
    1
Keyboard Shortcut Use Keyboard Shortcuts