Cessna 172R, Руководство по эксплуатации

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SECTION
5
PERFORMANCE
CESSNA
MODEL 172R
CRUISE CONDITIONS:
Total distance
Pressure altitude
Temperature
Expected
wind enroute
LANDING CONDITIONS:
Field pressure altitude
Temperature
Field length
TAKEOFF
320 Nautical Miles
5500 Feet
20°
C
10 Knot Headwind
2000 Feet
25°C
3000 Feet
The takeoff distance chart, Figure 5-5, should be
consulted,
keeping in mind that distances shown are based on the short field
technique. Conservative distances can be established by reading
the chart at the next higher value
of
weight, altitude
and
temperature. For example, in this particular sample problem, the
takeoff distance information presented
for
a weight
of 2450 pounds,
pressure altitude of 2000 feet and a
temperature of 30° C should be
)
used and results in the following:
Ground roll
1275
Feet
Total distance
to
clear a 50-foot obstacle
2290
Feet
These distances are well within the available takeoff field length.
However, a
correction
for the effect of wind may be made based on
Note 3 of the takeoff chart. The correction for a
12
knot headwind is:
.1?
Knot?
x
10o/o = 13o/o Decrease
9
Knots
This results in the following distances, corrected for wind:
Ground roll, zero wind
1275
Decrease in ground roll
-166
(1275 feet X
13%)
Corrected ground roll 1109 Feet
5-4 Dec
2/96