Metro-03
Meteorology Review
B.
Structural ice 1.1.1.4.2
Sg 3, fr 6
Fig 6: Structural
1.
Increases drag and weight
Icing
2.
Decreases lift and increases stall speed: level flight
requires higher angle of attack (AOA)
3.
Affects thrust production on jet aircraft: large pieces
of ice thrown free by airflow or deicing systems can
be ingested by engines, resulting in engine damage
or failure
4.
Other considerations
a.
Pitot and static sources can clog, affecting
reliability of Mach/airspeed indicator, altimeter,
and vertical speed indicator (VSI)
b.
Vision impaired due to windshield icing
c.
Engine sensors can clog, resulting in improper
throttle and fuel control
C.
Fog can form when temperature and dew point within
3 degrees C/5 degrees F of each other 1.1.1.4.3
?
Name two phenomena that can produce clear air
turbulence.
ANSWER:
1. Jet streams
2. Mountain wave
(7-97) Original
Page 3-18
Previous Page
