Query on UK flying above 3000ft
Join Date: Oct 2005
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3000' is not always the transition altitude so you need to be aware of that as well. I think that the London TMA transition altitude is 4000' and I think it is something like 18000' in the US, so obviously that is something to be aware of during flight palnning.
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*STUPID QUESTION ALERT!*
I rarely venture above 3000 on an average bimble.........however, I did an aero's course this year, and needless to say it was above 3000ft, nearer 8000 for the spinning, what is the situation here?....is the rule just for straight A to B x-countrys?
For example, in SE England you can have TMA's of FL5500....daft question I know, but better to ask than remain in ignorance in perpetuity
I rarely venture above 3000 on an average bimble.........however, I did an aero's course this year, and needless to say it was above 3000ft, nearer 8000 for the spinning, what is the situation here?....is the rule just for straight A to B x-countrys?
For example, in SE England you can have TMA's of FL5500....daft question I know, but better to ask than remain in ignorance in perpetuity
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Interesting thread, since I find transition layer a little confusing myself.
Is it correct to say, then, "pressure down, levels down. Pressure up, levels up"?
So if QNH is below 1013, then FL30 will be below 3000 alt, and for a QNH above 1013 then FL30 will be above 3000 alt?
If this is correct, then it might help as a quick 'aide memoire' in picturing Trans alt and next available trans level for a given qnh more easily. So, eg, for a QNH above 1013, then the first avilable flight level for 3000 trans alt will (ignoring quadrantial considerations) always be FL30?
I also asume that, if ascending through the transition altitude (3000ft) on the QNH (and outside CAS), then at that pointthe altimeter subscale is set to 1013.2, and the next available flight level is climbed to. On descent, then when passing through the lowest available FL, then at that point the subscale will be reset to QNH. If the actual pressure outside was 1013, then I assume FL35 would be the lowest FL, below which I would refer to height AMSL as feet altitude.
Is it correct to say, then, "pressure down, levels down. Pressure up, levels up"?
So if QNH is below 1013, then FL30 will be below 3000 alt, and for a QNH above 1013 then FL30 will be above 3000 alt?
If this is correct, then it might help as a quick 'aide memoire' in picturing Trans alt and next available trans level for a given qnh more easily. So, eg, for a QNH above 1013, then the first avilable flight level for 3000 trans alt will (ignoring quadrantial considerations) always be FL30?
I also asume that, if ascending through the transition altitude (3000ft) on the QNH (and outside CAS), then at that pointthe altimeter subscale is set to 1013.2, and the next available flight level is climbed to. On descent, then when passing through the lowest available FL, then at that point the subscale will be reset to QNH. If the actual pressure outside was 1013, then I assume FL35 would be the lowest FL, below which I would refer to height AMSL as feet altitude.
I rarely venture above 3000 on an average bimble.........however, I did an aero's course this year, and needless to say it was above 3000ft, nearer 8000 for the spinning, what is the situation here?....is the rule just for straight A to B x-countrys?
