Question about differing Transition Levels and Altitudes

[your_dreamguy]

Does anyone know about how Transition Level and altitudes are set? Why do transition levels and altitudes vary in differing countries?

 

[Dumb Pilot]

Transition levels are set by the average atmospheric pressure altitude that is 2,000Ft. Higher than that country's highest terrain. When an air space has different transition levels and altitudes, is because they have certain areas where the concentration of the traffic is higher due to specific entry and exit corridors, they usually maintain a level to inbound A/C's and an altitude to departing A/C's within those corridors. That is what I remember from reading it many moons ago, maybe somebody else can post links that will give a better explanation.

 

[Oakum_Boy]

Trans. level on approach/arrival chart. Trans. alt set by ATC. Except in the US where it's a standard 18,000'

No transition layer in the US, but we do have minimum usable flight levels. In other countries, they have transition layers which account for varying transition altitudes based on QNH and terrain.

 

[Father Jack]

Sorry, OB lots of places have published transition altitudes, not set by ATC.
UAE, for example.

 

[Oakum_Boy]

Sorry, OB lots of places have published transition altitudes, not set by ATC.
UAE, for example.

Boy did I get that backwards. Drinking and posting bad.

 

[satpak77]

Transition Level - L for Level L for LOCAL ALTIMETER below this

Transition Altitude - A for Altitude A for ABOVE this is 29.92

 

[vtwo]

Level v points in the direction down. V points towards Down as In which direction you are going.

Same with Transition Altitude A points UP ( direction of Flight) Just My gouge for new jet pilots. take it or leave but it works.

 

[satpak77]

Level v points in the direction down. V points towards Down as In which direction you are going.

Same with Transition Altitude A points UP ( direction of Flight) Just My gouge for new jet pilots. take it or leave but it works.

yes another good way to remember

 

[greed]

Level v points in the direction down. V points towards Down as In which direction you are going.

Same with Transition Altitude A points UP ( direction of Flight) Just My gouge for new jet pilots. take it or leave but it works.

A good way to remember. I will use this one!

 

[dalad]

A good way to remember. I will use this one!

Transition level-Lowering, Transition Altitude-Ascending. I believe it relates to highest terrain as in previous post.