The flying height of different types of aircraft:
The flying height of passenger aircraft is several thousand meters.
large passenger planes fly in the stratosphere (about 11111 meters).
the maximum flying height of fighters in modern service is about 21,111 meters.
Some light aircraft can fly at a height of more than ten meters from the ground
The upper limit of flying height of different types of aircraft mainly depends on the power plant. The lower limit is mainly determined by the minimum speed that can safely fly level and the maneuverability of the aircraft. The normal altitude of the aircraft does not exceed 31km.
The heights of different clouds:
The high clouds are all above 4.5 -11 km
The middle clouds are 2.5-4.5 km
The low clouds are 1.1-2.5 km.
First, the passenger aircraft flies above several kilometers. Flying over thousands of meters, the airflow is relatively stable, which reduces turbulence, so it is used for passengers to ride. 2. Types of clouds:
According to the common cloud base height, clouds are divided into three groups: high, medium and low. In addition, the international cloud picture classification system published by the World Meteorological Organization in 1956 divides clouds into ten genera. Among them, low clouds include cumulus clouds (Cu), cumulonimbus clouds (Cb) and stratocumulus clouds (Sc). In the middle clouds, there are cumulus clouds (Ac) and stratocumulus clouds (As), while in the high clouds, there are cirrus clouds (Ci), cirrostratus (Cs) and cirrocumulus (Cc).
3. Safety knowledge of flying:
(1) Seat selection
1? Careful selection of seats for pregnant women, the elderly and children
Aisle
Advantages: convenient access and large space
Disadvantages: large flow of people
2. People who urinate frequently should not choose
seat: near the window
Advantages: enjoying the scenery
Disadvantages: inconvenient access
3. Long-term air route: the farther ahead, the better
Seat: front row
Advantages: fast up and down, Fast dining
Disadvantages: small space
4. Those who are afraid of airsickness should choose a window seat
Seat: middle
Advantages: less bumps
Disadvantages
3. Long-term route: the farther ahead, the better
Seat: front row
Advantages: fast up and down, Fast dining
Disadvantages: small space
4. Those who are afraid of airsickness should choose a window seat
Seat: middle part
Advantages: less bumps
Disadvantages: inconvenient travel
(2) Do not change seats at will to avoid disturbing the balance
The reminder of "put away the small table board" in the plane broadcast. At the same time, it can also ensure that when crash landing is evacuated, passengers will not be blocked by the table board to escape. "Straightening the backrest of the seat" can ensure that the seat will not block the escape way of the passengers in the back row, and can also prevent the passengers from being too relaxed, so as not to slow down the reaction speed in an emergency. "Opening the visor" allows passengers to observe anything abnormal outside the window when taking off or landing, so as to inform the flight attendants in time. After the emergency landing, if the passengers fail to leave the plane in time, it will be beneficial for rescuers to observe through the window and rescue the passengers in time.
(3) You can't turn on your mobile phone immediately when you land
When you use portable electronic products, the generated radio waves will interfere with aircraft radio navigation and other instruments and equipment, which will bring harm to flight safety. After the plane lands, the captain also needs to keep in radio contact with the ground staff to determine the plane position and taxi route. The telephone signal may interfere with the radio channel, so that the captain may not receive the taxi instruction from the tower and cause misjudgment.
(4) learn to fasten your seat belt.
when the plane hits the ground and explodes, it is necessary to unfasten the seat belt buckle quickly and rush to the bright crack at the rear of the cabin to escape from the wreckage of the plane before the fuel tank explodes. Because the plane usually hits the ground with its nose down, the fuel tank explodes after ten seconds, and the fire also takes several tens of seconds to spread, and it always spreads from the nose to the tail.
(5) wear an oxygen mask.
When the engine room is "ruptured and decompressed", the oxygen mask should be put on immediately, and it must be fastened tightly, otherwise the oxygen in the alveoli of respiratory tract will be "sucked out". In order to increase the pressure and oxygen concentration in the cabin, the plane will immediately drop below 3111 meters, and the seat belt must be fastened.