Wed, Jul 09, 2008
Aero-Terms!
Aero-Terms are designed to be a daily reminder of the terms,
names, acronyms and explanations of the unique language that
populates the aviation world. Aerospace, sport aviation, fixed
wing, helo, you name it... it's all fair game.
Aero-Terms should serve as a quick but intriguing reminder of
the terms you may use every day, or an introduction to an aspects
of the Aero-World you may not yet be familiar with. ANN also
encourages readers to go beyond the FMI link, and further research
any intriguing terms.
Suggestions for future Aero-Terms are ALWAYS
welcome, as are additions or discussion of the
explanations given for each Aero-Term.
Pressure Pattern
Flying
In general, an aircraft flight so planned and navigated as to
take advantage of the flight-altitude winds (pressure pattern) to
reduce flying time. As techniques have advanced, this concept has
become increasingly referred to as minimal flight. Probably the
most widely used method today is based upon the determination of
D-values with pressure and radio altimeters while in flight. This
provides for the continual adjustment of flight course to take
fullest advantage of winds in long flights over water. Flight plans
made out by the navigator are based on meteorological forecasts of
wind distribution. These forecasts are usually prepared in the form
of maps analyzed in terms of D-values at the flight pressure
altitude. During flight, observations of actual D-values can
conveniently be used to make relatively small corrections.
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