Buoyant Force and Atmospheric Density
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Questions and Answers

How do the effects of turbulence on rotary wing aircraft change as airspeed increases?

  • Stay the same
  • No effect
  • Decrease
  • Increase (correct)
  • What effect does decreased lift velocity have on turbulence for rotary wing aircraft?

  • Decreases turbulence (correct)
  • Increases turbulence
  • No effect on turbulence
  • Stabilizes turbulence
  • How does increased rotor blade arc impact turbulence for rotary wing aircraft?

  • Reduces turbulence
  • Stabilizes turbulence
  • Increases turbulence (correct)
  • No impact on turbulence
  • In general, what happens to the effects of turbulence on rotary wing aircraft as aircraft weight decreases?

    <p>Effects increase</p> Signup and view all the answers

    Which type of aircraft listed falls under the 'Military Identifier AH-1' category in terms of turbulence?

    <p>UH-1 Iroquois (Huey)</p> Signup and view all the answers

    Which aircraft has the potential to experience significant turbulence based on its military identifier?

    <p>H64 Mescalero</p> Signup and view all the answers

    What determines whether an air parcel will sink or rise in the atmosphere?

    <p>Temperature</p> Signup and view all the answers

    What is the term used to describe the altitude where moist, rising air cools beyond its dew point?

    <p>Condensation level</p> Signup and view all the answers

    What happens when a cloud continues to grow vertically above the lifted condensation level in an unstable atmosphere?

    <p>It produces precipitation</p> Signup and view all the answers

    What does the equilibrium level have in common with the temperature of an air parcel?

    <p>Same temperature</p> Signup and view all the answers

    How are clouds fundamentally formed according to the text?

    <p>By moist, rising air cooling beyond its dew point</p> Signup and view all the answers

    What gives aviators clues about potentially dangerous updrafts and downdrafts in the atmosphere?

    <p>Structure of clouds</p> Signup and view all the answers

    Where can light-or-greater turbulence always be anticipated according to the text?

    <p>During cold air advection</p> Signup and view all the answers

    What type of front is mentioned as a location for turbulence in the text?

    <p>Warm front</p> Signup and view all the answers

    What type of geographical feature is associated with larger vertical shear?

    <p>Mountainous regions</p> Signup and view all the answers

    In what atmospheric condition can tilted troughs contribute to turbulence according to the text?

    <p>Low-pressure systems</p> Signup and view all the answers

    What type of flow is mentioned as contributing to turbulence in the text?

    <p>Diffluent flow</p> Signup and view all the answers

    What type of curvature can lead to turbulence?

    <p>Anticyclonic curvature</p> Signup and view all the answers

    How are cirrostratus clouds different from haze?

    <p>Cirrostratus clouds are whiter and brighter than haze.</p> Signup and view all the answers

    How are cirrocumulus clouds different from altocumulus or altostratus clouds?

    <p>Cirrocumulus clouds can resemble fish scales, which is not seen in altocumulus or altostratus.</p> Signup and view all the answers

    What is the primary function of the Worldwide Merged Cloud Analysis (WWMCA)?

    <p>To offer an hourly analysis of cloud distribution based on satellite images.</p> Signup and view all the answers

    What products are available on the AFWWEBS platform related to the Worldwide Merged Cloud Analysis (WWMCA)?

    <p>Cloud Mask, Total Cloud Cover, Cloud Top Height, and Cloud Free Plot.</p> Signup and view all the answers

    How does the size of individual cloud elements in cirrocumulus clouds compare to those in altocumulus and altostratus clouds?

    <p>Altocumulus and altostratus cloud elements are larger than those in cirrocumulus clouds.</p> Signup and view all the answers

    In what categories are cirrus clouds like cirrostratus and cirrocumulus classified?

    <p>H1 through H4 for cirrus, H5 through H8 for cirrostratus, and H9 for cirrocumulus.</p> Signup and view all the answers

    What is the physical limit to icing?

    <p>-40° C</p> Signup and view all the answers

    What are supercooled large drops (SLD)?

    <p>Large droplets persisting in subfreezing temperatures</p> Signup and view all the answers

    How does droplet size influence the collection efficiency of drops on the airframe?

    <p>Small droplets tend to accumulate near the leading edge of the wing</p> Signup and view all the answers

    What altitude range is mentioned where 50% of all icing cases occur?

    <p>5000-13,000 feet</p> Signup and view all the answers

    What is rime ice characterized by?

    <p>Rough surface</p> Signup and view all the answers

    How does altitude impact icing conditions according to the text?

    <p>Optimal icing conditions are found in a narrow band of the atmosphere</p> Signup and view all the answers

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