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SkyWest Airlines Technical Study Guide Questions Graded A+
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SkyWest Airlines Technical Study Guide
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SkyWest Airlines Technical Study GuideWhat is D-ATIS – answer ATIS is traditionally a voice recording of someone reading the
weather. D-ATIS is a way to deliver the information digitally so onboard equipment can
interact with it.
How long is a TAF valid for? - answer24 Hours
TAF TEMPO meaning and what does it mean to us? - answer Temporary Time Period:
changes expected within a short period.
On a TAF if there is a TEMPO line what weather does it resort back to after tempo is
over? - answer Main line before that tempo
How many times/day does the TAF come out? - answer4 times 00z 06z 12z 18z
How often do winds and temperature aloft forecasts come out? - answer4X P.D. @
0000, 0600, 1200, 1800 Z
How do you convert pascals to millibars? - answerX Pascals/100= x millibars
What was my previous company's procedure on wind shear alerts? - answer unstable
approach= go around
What does ACSL meant on a chart? - answerAlto Cumulus Standing Lenticular
On a prog chart what does H and L mean? - answerH and L on a Prog Chart depict the
forecast epicenter of a High pressure system, and a Low pressure system, respectively.
What are the thin grey lines (isobars) Close vs far isobars? - answerClose isobars
depict a steep pressure gradient. That is to say, there is a rapid increase or decline in
pressure over a short distance perpendicular to the isobar. Close isobars usually
indicate a probability of higher wind speeds.
What weather associated with cold front, warm front? - answerA cold front has a higher
potential for cumulus build-ups of clouds, with showery precipitation and generally good
visibilities. A warm front has stratus-like cloud formations, steady rain and generally
reduced visibilities associated with a more stagnant air mass.
,How to differentiate hail from rain on radar. - answerThe radar uses dual band to
determine size and shape of the falling particles. On Doppler radar, hail generally sends
a return signal that looks like extremely heavy rainfall.
What are the meanings of different colors on radar ? - answerDifferent colors define the
reflectivity of an air mass or specifically, moisture in the air. Higher reflections of a radar
transmission indicate higher moisture content.
Can your temp ever go below the dewpoint? - answerNo. when temp reaches same
dewpoint, air is 100% saturated
Explain 3 stages of thunderstorms. - answerCumulus mature dissipating
Which stage would you most likely encounter a downdraft? - answerUpdrafts and
downdrafts at mature and all downdrafts at dissipating stage
As a pilot how can you visually tell which stage the thunderstorm is in? -
answerCumulus stage when updrafts in cumulus clouds, due to lifting force. Mature
stage when it starts to rain. Dissipating stage when the cloud opens up and starts to dry
out and the anvil shape forms
Microburst what is it and which stage of Thunderstorm? - answerMature stage
preceding rain fall
Can you overfly a thunderstorm? - answerYes, suggested 1000 ft for every 10kts of
movement
Where is the most severe turbulence in a thunderstorm? - answerTop 1/3 of the
thunderstorm where updrafts and downdrafts meet
How do you avoid risks associated with TS? - answerAvoid flying 20nm from the TS.
What are the risks associated with TS? - answerMicrobursts and HAIL
You just departed Dallas, there's a T-Storm directly in front of you. What direction do
you go around it? - answerUpwind side of the thunderstorm since the anvil is always at
the downwind side of the thunderstorm
What is a Microburst? Diameter and FPM it produces? - answerA microburst is a rapidly
descending column of air, usually no larger than about 2.5 miles in diameter where the
rate of descent can exceed 6,000'/minute. When the column of air nears the surface,
the wind will spread in all directions causing a wind change as you fly through the
microburst.
, What would you do if there was a microburst over the field and you were five minutes
from landing? - answerMaybe ask for vectors to a hold and wait it out. Or divert to
alternate. Go-Around would sequence you through the microburst, most likely.
What is needed for a thunderstorm to form? - answerMoisture, unstable air, and lifting
force
Why does the thunderstorm flatten at the top? - answerAnvil clouds, which are mostly
composed of ice particles, form in the upper parts of thunderstorms. They get their anvil
shape from the fact that the rising air in thunderstorms expands and spreads out as the
air bumps up against the bottom of the stratosphere
What would you do if you found yourself in a thunderstorm? - answer1.Tighten your
safety belt, put on your shoulder harness. 2. Plan and hold the course to take the
aircraft through the storm in minimum time. 3. To avoid most critical icing establish a
penetration altitude below the freezing level or above the level of -15C 4. Turn on pitot
heat, carb heat, jet engine anti-ice. 5. Establish power settings for turbulence
penetration airspeed. 6. Turn up cockpit lights to highest level to lessen temporary
blindness from lighting. 7. If using autopilot disengage altitude hold mode and safe
speed mode. 8. If using airborne radar tilt the antenna up and down occasionally. 9.
Keep eyes on instruments to avoid temporary blindness from lightning. 10. Maintain
constant ATTiTUDE. Allow altitude and airspeed to fluctuate. 11. Don't turn back once
you are in the thunderstorm. Turning maneuvers can increase stress on aircraft.
Or: Don't turn back once you are in the thunderstorm. A straight course through the
storm will most likely get you out of the hazards most quickly. In addition, turning
maneuvers increase stresses on the aircraft
What altitude does the tropopause start? - answer20,000' near the poles, 65,000' near
the equator. Approximately 36,000' over the US
What happens when a cold front collides with a warm front? - answer"collides" makes
me think stationary front. Occluded would be when a cold front "overtakes" a warm
front.
Name the different types of fog and what causes them? - answerAdvection - moist air
moves over cold ground
Radiation - cool ground cools air
steam - cold air over war water
upslope - moves up sloping terrain
freezing - temp below freezing and water vapor sublimates
What is a lenticular cloud? - answerA lenticular cloud is a lens-shaped cloud that
normally develops on the downwind side of a mountain or mountain range. This occurs
when stable, moist air flows over a mountain, creating a series of oscillating waves.
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