Metro-01
Review of Basic Meteorological Principles
iii. Adjust ADI reference
iv. Fly on a heading calculated to provide the quickest
passage through the storm at an altitude affording
the least turbulence and icing while clearing all
ground obstacles by a wide margin
v.
Avoid the upper 2/3 of a mature cell (turbulence
and hail) and freezing level +/- 2,000 ft (lightning)
(c) Light
i.
Turn all cockpit lights to bright including floodlights
(d) Tight
i.
Lower the seat to the bottom to prevent striking the
head against the canopy and to reduce the
blinding effect of lightning and do not look outside
of cockpit
ii.
Tighten lap belts
b. Upon penetration
(1) Fly constant power and pitch attitude by referencing the
ADI; chasing the altitude or airspeed could result in
unusual flight attitudes and/or structural overstress. Use
the smallest pitch corrections possible
(2) Keep eyes on flight instrumentation and avoid looking
outside because lightning flashes can cause temporary or
permanent loss of vision
(3) Fly constant heading and do not attempt to turn around
because the fastest way through a storm is a straight line,
which also lessens the chance of becoming disoriented
(4) Be prepared for turbulence, hail, rain, and pitot static
failure due to icing
B. Microbursts 1.1.1.4.1.2
Fig 5: Duration
Characteristics of
1. Description and composition
Microbursts
a. Intense and localized downburst of air that descends from a
thunderstorm and, upon reaching ground, spreads horizontally
b. Usually found beneath thunderstorms with visible rain or virga
c.
Usually 1 to 2 miles in diameter; wind speeds can exceed
Fig 6: Microbursts
100 kts (10,000 fpm) and be accompanied by rain or other
obscuring phenomena; usually last less than 10 minutes
(7-97) Original
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