December 2, 201213 yr Commercial Member Hi All Just wondering if these are still used or has it been changed recently: cruise levels below FL245 000-089.....odd thousand of feet 090-179.....odd thousand plus 500ft 180-269..even thousand of feet 270-359...Even thousand of feet plus 500ft Cruise level above FL245 000-179........FL250, 270, 290, 330,370 180-359........FL260, 280, 310, 350, 390 thanks Clive Clive Joy
December 2, 201213 yr Commercial Member Just wondering if these are still used or has it been changed recently: cruise levels below FL245 000-089.....odd thousand of feet 090-179.....odd thousand plus 500ft 180-269..even thousand of feet 270-359...Even thousand of feet plus 500ft Cruise level above FL245 000-179........FL250, 270, 290, 330,370 180-359........FL260, 280, 310, 350, 390 This is in uncontrolled airspace, and the last notes I have on that were up to FL195 not FL245. For controlled airspace I have 000-179 ... odd thousands 180-359 ... even thousands up to FL290, then same as above if RVSM, else 2000' separation using odd thousands only. Sorry, I'm not sure which is the more recent, but my notes at least do mention RVSM It might be different between Europe and US/Canada in any case. My notes are for Europe. Regards Pete Win10: 22H2 19045.2728 CPU: 9900KS at 5.5GHz Memory: 32Gb at 3800 MHz. GPU: RTX 24Gb Titan 2 x 2160p projectors at 25Hz onto 200 FOV curved screen
December 2, 201213 yr Author Commercial Member Many thanks Pete/Jay @Jay do you know what the US is? Clive Joy
December 2, 201213 yr In the US flight levels start at 18,000ft MSL Below that it is seperated by IFR or VFR flight. IFR is thousands.....VFR is thousands + 500ft Here is a link that saves a lot of typing and explains it all... https://www.faa.gov/...TC/atc0405.html Short version is 0-179 degrees.... odd numbers.......180-359....even numbers Jay
December 2, 201213 yr Commercial Member US is definatly different It is also not the same even all over Europe. France is definitely different. I think they use a North/South differentiation instead of East/West, for instance. Also of course all of the ex-USSR countries use METRIC flight levels which are different, and presumably have different rules. Also, I think the rules i mentioned change again above FL410. Not that this affects very many airliners. Then, there's the rest of the world ... Regards Pete Win10: 22H2 19045.2728 CPU: 9900KS at 5.5GHz Memory: 32Gb at 3800 MHz. GPU: RTX 24Gb Titan 2 x 2160p projectors at 25Hz onto 200 FOV curved screen
December 2, 201213 yr It is also not the same even all over Europe. France is definitely different. I think they use a North/South differentiation instead of East/West, for instance. Also of course all of the ex-USSR countries use METRIC flight levels which are different, and presumably have different rules. Also, I think the rules i mentioned change again above FL410. Not that this affects very many airliners. Then, there's the rest of the world ... Regards Pete Correct, the L-countries (Spain, France and Italy) use north/south rather than east/west for the odd/even split. Russia recently switched to flight levels in feet, at least in RVSM airspace (FL290-FL410). Above FL410 I think you go back to the old non-RVSM rules (flight levels separated by 2000' rather than 1000' feet), only bizjets and military up there of course. John-Alan Pascoe
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