How the plane dives, through those structural changes, is done

There is a control device behind the wing.

First of all, we need to understand what is meant by load (overload). The load factor, that is, the ratio of the net force R (excluding gravity g) of all aerodynamic forces and thrust acting on the aircraft to its gravity g. It indicates the relative lifting of the load on the aircraft.

According to the direction of external force, the load factor is divided into normal load factor, longitudinal load factor and lateral load factor. Because when the flying machine is maneuvering, it is mainly achieved by changing the magnitude and direction of the normal overload. Therefore, the load factor is usually referred to as the normal load factor (n=y g).

When flying, the pilot is subjected to the same overload as the aircraft.

In level flight, the normal overload experienced by the person is 1; When the overload is greater than 1, the phenomenon of overweight occurs; Partial weightlessness between 1 and 0; When the occupants are overloaded, they will drift away from the seat if they quarrel.

The lifting drag is relatively small during the dive, and the ratio of load to gravity is relatively small.

It is the transformation between kinetic energy and potential energy of digging out the mind.

When an airplane dives, the potential energy of the airplane is converted into kinetic energy, and the speed of the airplane increases. As the aircraft ascends, the kinetic energy of the aircraft is converted into potential energy, and the speed of the aircraft decreases.

Definition of kinetic energy: The amount of judgment energy that an object has due to its motion is called the kinetic energy of the object. Its size is defined as one-half of the product of the mass of the object and the square of the velocity.

Potential energy is energy stored in a system that can also be released or converted into other forms of energy. Potential energy is a state quantity, also known as potential energy. Potential energy is not possessed by individual objects but is shared by interacting objects.

Deriving the longitudinal stability of the "dive maneuver" process in the vertical plane of the aircraft during maneuvering: The stability of the aircraft is very important when performing maneuvering flights. Among them, longitudinal stability is particularly important for the dive maneuvering process.

A dive maneuver is a maneuver in which the aircraft turns downward in a vertical plane, and if this process is too fast, the aircraft will generally lose control or even crash. In order to ensure longitudinal stability during dive maneuvers, several factors need to be considered. Among them, aerodynamic forces and inertial forces are the most important factors.

Specifically, when an aircraft performs a dive maneuver, its velocity increases, and the lift generated by aerodynamic forces also increases. At the same time, gravity and inertial forces also have an effect on the aircraft as it turns downward during the dive. The magnitude and direction of these forces directly affect the stability of the aircraft.

The longitudinal stability of the "dive maneuver" process in the vertical plane of the aircraft during maneuvering flight is derived.

Deriving the longitudinal stability of the "dive maneuver" process in the vertical plane of the aircraft during maneuvering: The stability of the aircraft is very important when performing maneuvering flights. Among them, longitudinal stability is particularly important for the dive maneuvering process.

A dive maneuver is a maneuver in which the aircraft turns downward in a vertical plane, and if this process is too fast, the aircraft will generally lose control or even crash. In order to ensure longitudinal stability during dive maneuvers, several factors need to be considered. Among them, aerodynamic forces and inertial forces are the most important factors.

Specifically, when the aircraft performs a dive maneuver, its speed will increase, and the lift generated by the aerodynamic force will also increase. At the same time, since the aircraft turns downward during the dive, gravity and inertial forces will also have an impact on the flying aircraft. The magnitude and direction of these forces directly affect the stability of the aircraft.

In order to better analyze the longitudinal stability of the aircraft during the dive maneuver, relevant mathematical modeling is required. Typically, we use longitudinal equations to describe the process. Its basic form is:

m * q dot dot + c *q + c m - c ) c * e where m represents the mass of the aircraft, q dot dot represents the acceleration of the angle of attack, c represents the vertical moment of the flight embedder when the unit angle of attack changes, q represents the pitch speed of the aircraft, c m represents the pitching moment coefficient of the aircraft, c represents the pitching moment generated when the unit pitch speed changes, is the angle of attack, and δ e represents the elevator declination angle. By processing this equation, the longitudinal stability of the aircraft in different situations can be obtained. In general, longitudinal stability during dive maneuvers requires consideration of several factors.

In addition to aerodynamic and inertial forces, there are other factors that need to be taken into account, such as the structure of the aircraft, the position of the center of gravity, etc. Therefore, when designing the aircraft, these factors need to be fully considered to ensure the stability of the airframe during the maneuvering flight. <>

The pitch balance of the flying aircraft refers to the () sum of the mountain grip acting on the land section of the aircraft is zero, and the angle of attack remains unchanged.

a.Lift gravity.

b.Rolling torque.

c.Pitch moment.

d.Yaw moment.

Correct answer: c

The pitch control that can be achieved on the flying section is ().

a.Aileron. b.The jujube burns and lacks wings.

c.Helmsman debate.

d.Rudder.

Correct answer: c