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PRIMUS
r
880
Digital
W
eather
Radar
System
A28-1146-102-00
Radar Facts
5-51
OVERFLYING A STORM
HAIL
AD-12061-R1@
Overshooting a Storm
Figure 5-38
Another example of the pilots importance in helping the radar serve its
safety/comfort purpose is shown in figure 5-39. This is the blind alley
or box canyon situation. Pilots can find themselves in this situation if
they habitually fly with the radar on the short range. The short-range
returns show an obvious corridor between two areas of heavy rainfall,
but the long-range setting shows the trap. Both the near and far
weather zones could be avoided by a short-term course change of
about 45_ to the right. Always switch to long range before entering such
a corridor.