A study on a space-wing for safe landing and take-off of an airplane

我们提出了一种由正方形机翼组成的“分裂机翼”。“分裂之翼”有两种类型。一种是“滑动型”，另一种是“狭缝型”。在前一种类型中，方形机翼之间的距离是根据飞行条件沿跨度滑动来改变的。对于后一种类型，方形机翼之间的缝隙根据飞行条件打开和关闭。在要求高效率的飞行中，距离为0，整个机翼的特征是展弦比等于正方形翼数n(滑动式)或大于n(狭缝型)。另一方面，当遇到阵风时，方形机翼之间的距离大于弦长的20%，整个机翼的特性变得更接近于方形机翼。分体机翼可以提高小型轻型飞机的飞行稳定性。

We have proposed a 'Split wing', which is composed of some square wings. 'Split wing' has two types. One is the 'Slide type' and the other is the 'Slit type'. In the former type, the distances between the square wings are varied by sliding them along the span according to flight conditions. With the latter type, the slits between the square wings are opened and closed according to flight conditions. In a flight where high efficiency is required, the distances are 0 and the characteristic of the whole wing is that of the wing with an aspect ratio equal to the number of square wings n for 'Slide type' or larger than n for 'Slit type'. On the other hand, when gusts are encountered, the distance between square wings is larger than 20% of the chord length and the characteristic of the whole wing becomes closer to that of the square wing. The 'Split wing' can enhance the flight stability of a small and light airplane.