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研究了人头颈部的气动特性和生物力学特性，提出人头颈部受到高速气流吹袭时，对气动阻力的耐受限值为２．４５２ｋＮ，对气动升力的耐受限值为１．３５８ｋＮ，对气动侧力的耐受限值为０．１６９ｋＮ，并给出了人头颈部高速气流吹袭的耐限曲线。不论乘员在何种姿势下弹射，作用在头颈部的气动力不超过以上数值才可免遭高速气流吹袭造成的损伤。
The aerodynamic characteristics and biomechanical properties of human head and neck are studied. When the human head and neck are attacked by high-speed air current, the tolerance to aerodynamic drag is 2.452kN and the tolerance to aerodynamic lift is 1.358kN, The limit of aerodynamic lateral force is 0.169kN, and the resistance curve of high velocity human head and neck blows is given. No matter what position the crew ejected under the action of the aerodynamic force in the head and neck does not exceed the above value can be protected from the impact of high-speed air currents caused damage.