> Of Carter, Baron >The 18,000ft cutover to Flight Levels varies from region to >region around the world. Some countries may use 10,000ft >and others use 5,000ft.
It even varies within each country. The UK is generally 3000 ft but has zones of 4000 ft, 5000 ft and 6000 ft. The 'single skies' plan is to have one value throughout Europe. http://www.caa.co.uk/docs/64/DAP_ACD_8_Altimeter.pdf
