11. At 13 : 43, Flight 705 was cleared to climb to flight level 250. 12. Climb to flight level 450 at maximum takeoff weight is possible without a step climb. 13. As for flight levels , the minimum flight level assigned depends on the local altimeter setting. 14. Flight levels are altitudes corrected and calibrated against the International Standard Atmosphere ( ISA ).15. The resulting altimeter readings are known as flight levels . 16. The total ( taxi ) time would be less than pre-Sept . 11 flight levels . 17. The system will alert the pilot if the flight deviates from the assigned flight level . 18. Descend now to flight level two-niner-zero ( 29, 000 feet _ 8, 800 meters ). 19. As for flight levels, the minimum flight level assigned depends on the local altimeter setting. 20. These sondes measure temperature, humidity, pressure, and especially winds between flight level and the ocean's surface.
