Nevertheless, certain exceptional aircraft like the Concorde and the Tupolev Tu-144 have managed to ascend to altitudes of FL600 (equivalent to 60,000 feet).
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Flying beyond the altitude of 60,000 feet entails the risks of structural failure, physiological hazards, and decreased operational efficiency. Commercial airliners are specifically engineered for lower altitudes, and exceeding these prescribed limits may also give rise to aerodynamic complications.
To maintain their operational ceiling of 70,000 feet (21,000 m), the early U-2A and U-2C models had to fly very near their never-exceed speed (VNE). The margin between that maximum speed and the stall speed at that altitude was only 10 knots (12 mph; 19 km/h).
The ceiling of an aircraft is the maximum altitude it can reach while maintaining level flight. Fighter jets typically have a ceiling ranging from 50,000 to 60,000 feet, depending on the specific model and its intended purpose.
As the federal authority over operations in all airspace and the regulating authority over operations, the FAA will ensure that the ETM cooperative vision aligns with agency goals and meets the requirements for safe and efficient operations.
A: No commercial or business airplane flying today can exceed 100,000 feet. Special rocket-powered airplanes can fly over 100,000 feet to gather data, but they are specially designed for it.
Likewise, TSA has no rules that limit how much money you can bring through security. In other words, TSA has no cash limit per person. So you can bring any amount of money to the airport. Flying with a large amount of cash on a flight is not illegal.
However, the FAA's legal limit for both recreational and commercial drone flying is 400 feet above ground level. Military drones can fly far higher, with some models reaching up to 60,000 feet for strategic advantages.
Aerodynamic altitude: If a commercial airliner flies too high, it will encounter less dense air passing over the wings to create lift. This can cause the plane to stall and fall out of control. Depending on the weather conditions and aircraft weight, this can occur anywhere between 40,000 and 45,000 feet.