飞机表面积、容积是飞机总体设计的重要参数之一。计算机身表面积可以估算全机的表面喷漆面积以及全机的摩擦力、气动力大小。在飞机总体设计中,根据飞机总体布置的要求,容积在客舱布置、货舱布置、载油量及环控等方面有很重要的意义。本文从飞机的表面积、容积计算方面着手,说明飞机表面积、容积的计算方法、目的、作用、意义。 Aircraft surface area, volume is one of the important parameters of the overall design of the aircraft. Computer body surface area can be estimated whole machine surface painting area and the whole machine friction, aerodynamic size. In the overall design of the aircraft, according to the requirements of the overall layout of the aircraft, the volume is of great significance in terms of cabin layout, cargo compartment layout, fuel loading and loop control. This paper starts from the calculation of surface area and volume of aircraft, and shows the calculation method, purpose, function and significance of aircraft surface area and volume.