模型飞机一般与载人的飞机一样，主要由机翼、尾翼、机身、起落架和发动机五部分组成。

Model aircraft is generally the same as manned aircraft, which is mainly composed of wing, tail, fuselage, landing gear and engine.

1、机翼是模型飞机在飞行时产生升力的装置，并能保持模型飞机飞机飞行时的横侧安定。

1. The wing is the device which can generate lift and keep the lateral stability of the model aircraft in flight.

2、尾翼包括水平尾翼和垂直尾翼两部分。水平尾翼可保持模型飞机飞行时的俯仰安定，垂直尾翼保持模型飞机飞行时 的方向安定。水平尾翼上的升降舵能控制模型飞机的升降， 垂直尾翼上的方向舵可控制模型飞机的飞行方向。

2. The tail consists of horizontal tail and vertical tail. The horizontal tail can maintain the pitch stability of the model aircraft while the vertical tail can maintain the directional stability of the model aircraft. The elevator on the horizontal tail can control the lift of the model aircraft, and the rudder on the vertical tail can control the flight direction of the model aircraft.

3、机身将模型的各部分联结成一个整体的主干部分叫机身。同时机身内可以装载必要的控制机件，设备和燃料等。

3. The fuselage connects all parts of the model into a whole. The main part is called fuselage. At the same time, the fuselage can be loaded with necessary control parts, equipment and fuel.

4、起落架供模型飞机起飞、着陆和停放的装置。前部一个起落架 ，后面两面三个起落架叫前三点式;前部两面三个起落架，后面一个起落架叫后三点式。

4. The landing gear is a device for model aircraft to take off, land and park. One front landing gear and three rear landing gears are called front three-point landing gear; three front landing gears and three rear landing gears are called rear three-point landing gear.

5、发动机它是模型飞机产生飞行动力的装置。模型飞机常用的动力装置有：橡筋束、活塞式发动机、喷气式发动机、电动机。

5. The engine is a device that generates flight power for a model aircraft. The commonly used power devices of model aircraft are: rubber band, piston engine, jet engine and motor.

航空模型技术常用术语

Common terms of aviation model technology

1、翼展机翼(尾翼)左右翼尖间的直线距离。(穿过机身部分也计算在内)。

1. The linear distance between the left and right wingtips of a wingspan wing (tail). (the part passing through the fuselage is also included).

2、机身全长模型飞机前端到末端的直线距离。

2. The straight-line distance from the front end to the end of a full-length model aircraft.

3、模型飞机各部分重力的合力作用点称为。

3. The point of resultant force of gravity of each part of the aircraft is called the center of gravity.

4、翼型机翼或尾翼的横剖面形状。

4. The cross section shape of an airfoil or tail.

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