论文部分内容阅读
七、高空高速战斗机 50年代末、60年代初,喷气战斗机的发展趋势是追求升限更高、速度更快。美国加快研制马赫数超过3的军用飞机XB—70和A-11(SR—71的原型机)。苏联为与之抗衡,也开始研制性能相当的喷气战斗机。米格—25(E-155,代号84)截击机(图一)是紧接在E-150、E-152之后研制的,但共同点已很少。从总体布局上看,E-155用新研制的两侧二元超音速进气道取代了沿用多年的机头进气道;用中等后掠角上单翼取代了大后掠三角翼;还采用了双垂尾。从机体结构材料看,不锈钢占80%,铝合金占11%,钛合金占8%,其它材料
Seven, high-speed high-speed fighters The late 50s, early 60s, jet fighter development trend is the pursuit of higher ceiling, faster. The United States has accelerated the development of the military aircraft XB-70 and A-11 (the prototype of the SR-71) with a Mach number of more than three. To counter the Soviet Union, also began to develop comparable jet fighter performance. The MiG-25 (E-155, code 84) interceptor (Figure 1) was developed immediately after the E-150 and E-152 but has little in common. From the overall layout point of view, E-155 with the newly developed two-supersonic supersonic inlet replaced many years of nose intake; with a moderate sweep angle on the wing to replace the large swept delta wing; also Using a double vertical tail. Structural material from the body to see, stainless steel accounted for 80%, 11% of aluminum, titanium alloy accounted for 8%, other materials