论文部分内容阅读
F/A-18F/F的机翼下垂问题F/A—18E/F在试飞中产生了严重的“机翼下垂”问题,美国空军承诺要在年前攻克这一问题.机翼下垂现象是在飞机大迎角机动期间,机翼失去升力时,产生30～40度的非指令滚转.通过.每个前缘襟翼内侧增加45.7厘米的长度,沿1.22米的其余前缘贴上40号砂纸,以及改变这些襟翼的交互作用方式,研究人员已把下垂降至5～10度.他们希望再作小量修改就可完全消除这种现象.官员们要求在签订第三个低速率生产30架飞机的合同前解决这个问题.这些修改要涉及62架飞机,有7架目前正在进行试飞.
F / A-18F / F wing sag problem F / A-18E / F in flight produced a serious “wing sag” problem, the United States Air Force promised to overcome this problem years ago. Wing sag phenomenon During the aircraft maneuvering at high angles of attack, a non-command roll of 30 to 40 degrees was generated when the wing lifted its lift, and the length of 45.7 centimeters was added to the inside of each leading edge flap, affixed 40 along the remaining leading edges of 1.22 meters Sandpaper, and changing the way these flaps interact, researchers have reduced drooping to 5-10 degrees and they hope to make minor changes to completely eliminate the phenomenon.Officials are required to sign a third low rate The problem was solved before the contract to produce 30 aircraft, which involved 62 aircraft and seven were currently undergoing test flights.