Section 5 Pilot’s Operating Handbook
Performance EXTRA 500
1 Climb
The climb, distance, fuel to climb chart will give the following
result without respect to head wind. The different values for
different ISA conditions may linearly interpolated.
Using the conservative ISA condition (ISA +8°C) we get:
ISA (figure 5-7, sheet 2):
Time to climb: 17:30 – 01:30 = 16:00 min:sec
Fuel to climb: 35 – 3 = 32 l (57.4 lbs)
Distance to climb: 38 – 3 = 35 NM
ISA +30°C (figure 5-7, sheet 2):
Time to climb: 25:00 – 01:36 = 23:24 min:sec
Fuel to climb: 44 – 4 = 40 l (71.8 lbs)
Distance to climb: 55 – 3 = 52 NM
For ISA +8°C add 8 / 30 times the difference between ISA
+30°C and ISA to the ISA value:
Time to Climb: 16:00 + 8 / 30 x (23:24 – 16:00)
= 16:00 + 118 sec = 17:58 min:sec
Fuel to Climb: 32 + 8 / 30 x (40 – 32)
= 32 + 2.1 = 34.1 l (61.2 lbs)
Distance to Climb: 35 + 8 / 30 x (52 – 35)
= 35 + 4.5 = 39.5 NM
This distance is for zero wind. The decease in distance due to
the 10 kt (NM/ hour) head wind will be:
18 min / 60min x 10 kt ≈ 3 NM.
The corrected distance to climb:
= 39.5 – 3 = 36.5 NM.
5-6 26. January 2011
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