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19
3. Read the density altitude over the arrow in
the DENSITY ALTITUDE window.
See
Fig-
ure 13.
Figure 13 shows a pressure altitude of 15,000 feet
set opposite an outside air temperature of -15°C. A
calibrated airspeed of 145 knots converts to a true
airspeed of 183 knots and a density altitude of
15,000 feet under these conditions.
Here are some sample problems:
(Answers are on Page 37)
PRESSURE DENSITY
ALTITUDE TEMP CAS TAS ALTITUDE
1. 14,000 5°C 160
2. 20,000 -20°C 200
3. 8,000 15°C 150
Figure 13