A28-1146-102-00
Radar Facts
5-14
D Under the right conditions, a dangerous thunder bumper can
develop in 10 minutes, and can in fact spawn andmature under the
radar beam as the aircraft approaches it, as shown in figure 5-14.
If flying at 400 kt groundspeed, a fastdeveloping thunderstorm that
spawns67NMinfrontoftheaircraftcanbelargeenoughtodamage
the aircraft by the time it arrives at the storm.
AD-35699@
FREEZING
LEVEL
AS IT APPROACHES
Fast Developing Thunderstorm
Figure 5-14
D At lowaltitude, thetilt shouldbe setas lowas possibleto getground
returns at the periphery only as shown in figure 5-15.
CORRECT WRONG
FREEZING
LEVEL
AD-35700@
Low Altitude Tilt Management
Figure 5-15
Excess up-tiltshouldbe avoided as it canilluminate weatherabove
the freezing level.
NOTE: The pilot should havefreeze levelinformation as a part of
the flight planning process.
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