Why pilots should understanding of high- and low-pressure wind patterns? – How to take advantage of beneficial tailwinds!

[Ref Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 12-8, The Pilot’s Manual PM2 Ground School Page 329, 330]

Why pilots should understanding of high- and low-pressure wind patterns?

Ans:

There are various reasons!

  1. It is taking about how to take advantage of beneficial tailwinds.
  2. It is also related to the direction of wind drift when flying from high to low and vice versa.
  3. weather is associate with wind pressure system.

 

In Northern Hemisphere, when planning a flight from west to east, favorable winds would be encountered along the northern side of a high-pressure system AND/OR the southern side of a low-pressure system.

Same concept, in Northern Hemisphere, when planning a flight from east to west, favorable winds would be encountered along the southern side of a high-pressure system AND/OR the northern side of a low-pressure system.

 

In Northern Hemisphere, if you stand with your back to the wind, the low pressure will be on your left

– Buys Ballout’s law

Apply the above concept, when an aircraft flying from High-pressure to Low-pressure System in Northern Hemisphere, due to the Coriolis Force, right drift will be expected – wind blows from left to right.

Notes: “high to low, watch below!” If you don’t know? Check it out~

 

Summary

In northern hemisphere, “take advantage of beneficial tailwinds” is making full use of the tailwind of a high-pressure system!

 

Read More –

# High pressure system and Ridge

# Low-pressure system and Trough

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