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An Elbit Hermes 900 UAV, which has a maximum altitude of 30.000 feet (9100 Meters). A medium-altitude long-endurance unmanned aerial vehicle flies at an altitude window of 10,000 to 30,000 feet (3,000–9,000 m) for extended durations of time, typically 24 to 48 hours. [1]
Therefore, a pressure altitude of 32,000 ft (9,800 m) is referred to as "flight level 320". In metre altitudes the format is Flight Level xx000 metres. Flight levels are usually designated in writing as FLxxx , where xxx is a two- or three-digit number indicating the pressure altitude in units of 100 feet (30 m).
7,300 metres (24,000 feet). [1] Black Kite: Milvus migrans: Accipitridae: 6,500 (21,300 feet) [6] The black kite can reach an altitude of around 37,000 feet especially during their migratory flight to and from West Africa in the second week of September and the last week of May annually. [citation needed] Andean condor: Vultur gryphus: Cathartidae
Ground width of the boom exposure area is approximately 1 statute mile (1.6 km) for each 1,000 feet (300 m) of altitude (the width is about five times the altitude); that is, an aircraft flying supersonic at 30,000 feet (9,100 m) will create a lateral boom spread of about 30 miles (48 km).
The flight entered overcast clouds at FL 300 (about 30,000 feet or 9,100 metres), with the pilots selecting "continuous ignition" and turning on engine anti-ice as a precaution to protect their turbofan engines from the effects of precipitation and icing, either of which is capable of causing a flameout, where the engines lose all power.
[4] [5] The typical cruising altitude for commercial airliners is 31,000 to 38,000 feet (9,400 to 11,600 m; 5.9 to 7.2 mi). [6] [7] [better source needed] The speed which covers the greatest distance for a given amount of fuel is known as the maximum range speed. This is the speed at which drag is minimised.
30,000 ft (9,100 m) 370 595 25,000 ft (7,600 m) 410 660 20,000 ft (6,100 m) 450 725 15,000 ft (4,600 m) 490 790 10,000 ft (3,000 m) 540 870 Ref: ...
The introduction of jet airliners required a significant increase in cruise altitudes to the 30,000–41,000 ft (9,144–12,497 m) range, where jet engines are more fuel efficient. That increase in cruise altitudes required far more rigorous engineering of the fuselage, and in the beginning not all the engineering problems were fully understood.