一、前言 761气象火箭是我校研制的一种用于探测20～60km高度范围内大气要素的小型常规火箭。它是一种无控火箭,完全靠四片尾翼稳定(见图1)。对尾翼的要求,首先要有好的气动外形,为了减少飞行阻力,通常设计成扁薄形。尾翼在飞行过程中,受到一定的载荷作用,故要保证具有足够的强度和刚度。此外,构造上应便于制造、装卸和维修等。 I. Preface 761 The weather rocket is a small conventional rocket developed by our school for detecting atmospheric elements in the altitude range of 20-60 km. It is a non-controlled rocket, relying entirely on the stability of four tail (see Figure 1). The requirements of the tail, the first to have a good aerodynamic shape, in order to reduce the flight resistance, usually designed to be flat and thin. Empennage in flight, subject to a certain load, it is necessary to ensure adequate strength and stiffness. In addition, the structure should be easy to manufacture, handling and maintenance.