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Refer to figure or CAP 758 Figure 2.26.
Determine the maximum payload of a SEPH for a flight of 150 SM at the Maximum AUM in forecast no wind conditions at 4 000 ft:
  • A
    150 SM is beyond the range capability at Maximum AUM.
  • B
    490 lb
  • C
    600 lb
  • D
    580 lb

Refer to figure.
Figure 2.26 shows the range trend that results from trading off fuel against payload, while keeping a constant gross mass. Maximum range for each gross mass includes a full fuel load at take-off. Range includes allowance for warmup, take-off and climb to cruise altitude from sea level with reserves. Range is based on no wind and cruise at maximum range speed.

To determine the maximum payload, proceed with the following manner:

  • Enter with Range 150 SM from the bottom scale.
  • Move vertically upwards unti crossing the Maximum AUM line 2 050 lb.
  • Continue horizontally to the left and read Payload: 600 lb.
NOTE:
Payload is the combined weight of the passengers and their baggage, cargo and mail, i.e. whatever brings in revenue to the company.

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