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"Integrated range" curves or tables are presented in the Aeroplane Operations Manuals. Their purpose is
  • A
    to determine the still air distance for a wind components varying with altitude.
  • B
    to determine the flight time for a certain leg under consideration of temperature deviations.
  • C
    to determine the fuel consumption for a certain still air distance considering the decreasing fuel flow with decreasing mass.
  • D
    to determine the optimum speed considering the fuel cost as well as the time related cost of the aeroplane.
Page 24

5.4 Integrated Range This section allows for detailed flight planning for the cruise. Tables are given as follows:

Long Range Cruise
FL 270 to FL 370

(pages 25- 35)
Figures 0.74 Mach Cruise
FL 210 to FL 370

(pages 36- 52)
0.78 Mach Cruise
FL 290, 300, 310, 330, 350, 370.

(pages 53- 58)
Figures Low level (300 KIAS) Cruise FL 140 to FL 210.
(pages 59 -66)
The tables in this section are identical in use.
The tables are based on a ’differences’ principle, the difference between two gross weights representing a weight of fuel used. The corresponding difference in tabulated distance represents the still air (zero wind) distance available for that weight of fuel used.

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