SECTION 5
PERFORMANCE
CESSNA
MODEL 182T NAV
Ill
SAMPLE PROBLEM
(Continued)
FUEL REQUIRED
The total fuel requirement for the flight may be estimated using the
performance information in Figure 5-8 and Figure
5-9.
For this
sample problem, Figure 5-8 shows that a normal climb from 2000
feet to 8000 feet requires 2.7 gallons of fuel. The corresponding
distance during the climb is 18 nautical miles. These values are for
a standard temperature and are sufficiently accurate for most flight
planning purposes. However, a further correction for the effect of
temperature may be made as noted on the climb chart. The
approximate effect of a non-standard temperature is to increase the
time, fuel, and distance by for each 10°C above standard
temperature, due to the lower rate of climb. In this case, assuming a
temperature 16°C above standard the correction would be:
16"
X
10%
=
16% lncrease
10°C
With this factor included, the fuel estimate would be calculated as
follows:
Fuel to climb. standard temperature
2.7
Increase
due'to non-standard temperature
-
0.5
(2.7
X
16%)
Corrected fuel to climb
3.2 Gallons
Using a similar procedure for the distance to climb results in 21
nautical miles.
The resultant cruise distance is:
Total distance
Climb distance
Cruise distance
Nautical Miles
(Continued Next Page)
5-6 U.S.
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