How high can the plane fly As the title Thank you

The world's highest-flying aircraft is the American X 15 A research test aircraft. On March 30, 1961, NASA test pilot Joseph Volcker flew the aircraft to an altitude of 10,000 meters, on April 30, 1962 to an altitude of 10,000 meters, and on July 17, he flew to an altitude of 10,000 meters, which was officially approved by the World Aviation Organization as an absolute world record. In doing so, he became the world's first "astronaut to fly an airplane".

NASA stipulates that astronauts can be called astronauts if they fly at an altitude of more than 80,000 meters. On August 22, 1963, he flew again to an altitude of 10,000 meters over Edward Air Force Base.

The X 15 A is a rocket-powered manned high-altitude and high-speed research aircraft developed by North American Airlines. The aircraft is equipped with a single-chamber adjustable liquid-propellant rocket engine of the X L R99 R m 2 type of Siokel Chemical Company, with a thrust of 1,000 N at an altitude of 10,000 meters, and the nacelle is coated with a substance that can withstand 1648 high temperatures. A total of three aircraft were produced, and the tests ended in November 1968, with a total of 199 flights.

It was also the fastest flying aircraft, setting a record for Mach numbers on October 3, 1967.

The tallest fighter can fly to about 30,000 meters, but it does not have much practical effect, because the higher the fuel consumption, the worse the maneuverability. Generally, airplanes talk about practical ceilings. F-16 15000-16000 (Ceiling) F-15 18000 (Ceiling) F-22 18288 (Ceiling) F-104 30000 (Ceiling) Practical Ceiling is only 17500 It seems that Su-27 18500 (Ceiling) Rape-8-II 20000-22000 (Ceiling) The MiG-25 is generally recorded to be 28000 (Ceiling), but the maximum flight without load is 37650 Above is a fighter Let's talk about reconnaissance aircraft and bombers B-52, the practical ceiling is 16800, and the maximum can fly to the stratosphere, so it is called the stratofortress.

SR-71 26000-30000 (max) U-2 22000-27000 (max).

Records show that the world's highest-flying aircraft is the X-15A research test aircraft of the United States, which flies at a maximum altitude of 10,000 meters. Generally, the flight altitude of the aircraft is limited to 12,600 meters, which is the top of the stratosphere, and the stratospheric air is gentle, which is more suitable for aircraft flight.

Passengers are not allowed to carry flammable and explosive materials, controlled knives, live animals, and illegal items with odor or defacement on board.

The length, width and height of carry-on items carried on the plane shall not exceed 20cm, 30cm, 40cm, and checked items shall not exceed 40cm, 60cm, and 100cm.

Carry-on items must not weigh more than 5 kg when traveling, and each passenger is entitled to a free checked baggage allowance of 20 kg.