主题：【原创】F-22的蒙皮怎么皱起来了？ -- 晨枫
F-22机背上的蒙皮通常看起来是平整的
但在一定的角度和光线下，可以看到横向的波纹
开始以为是照片关系，但多看了几张，都有这个问题
这是为什么呢？复材的热胀冷缩应该低于金属，这该不是蒙皮刚度不够吧？
红圈里应该是个辅助进气门， 好像盖子没有了， 蓝圈里那个正常
而且这个不只一个F-22 看到， 右边好像就一直有盖子
是不是自适应复合材料做的蒙皮？
其实我根本就不知道！
人家那是小型相控阵天线，用来弥补机载雷达的盲区的。
以米国的科技和制造水平，蒙皮怎么可能出现问题呢？
我们不能因为取得了一点成果就妄自尊大，要看到我们和人家之间的差距。
那话怎么说来着？“还是先做好我们自己的事情吧”。
再说，米国是民主明灯、自由灯塔。即使有问题也会自我纠错。不似国内官员人浮于事、贪污腐败。这要是在国内，一定是当官的把经费拿去吃喝送子女出国啦。
说到底还是体制问题啊……啊……
第一个是隐形飞机的老毛病，天上飞一次，地上得涂涂抹抹十来个小时。
更关键的是第二点，隐形只是好天气时顶用，一下雨就全露出来。
"It is a disgrace that you can fly a plane [an average of] only 1.7 hours before it gets a critical failure"
内部报告：丢脸啊，平均1.7小时就有预期失效事故。
"Skin problems -- often requiring re-gluing small surfaces that can take more than a day to dry -- helped force more frequent and time-consuming repairs, according to the confidential data drawn from tests conducted by the Pentagon's independent Office of Operational Test and Evaluation between 2004 and 2008. "
蒙皮问题，别的飞机每天加油，我们每天加胶水。
"Over the four-year period, the F-22's average maintenance time per hour of flight grew from 20 hours to 34, with skin repairs accounting for more than half of that time -- and more than half the hourly flying costs -- last year, according to the test and evaluation office. "
上天一小时，地上得此后20到34小时。
TG获胜启示，大量假目标，越多越好。F22第一波之后再来就得一两天以后了
""When I got into this thing . . . I could not believe the compromises" made by Lockheed to meet the Air Force's request for quick results, said Olsen, who had a top-secret clearance. "I suggested we go to the Air Force and tell them we had some difficulties . . . and they would not do that. I was squashed. I knew from the get-go that this material was bad, that this correcting it in the field was never going to work."
设计时的飞机，被媒体大力吹捧的飞机，和真正停在基地里的飞机是很不相同的。
"It delaminates, "loses its strength and finish," said an official privy to Air Force data.
In the interview, Ahern and Air Force Gen. C.D. Moore confirmed that canopy visibility has been declining more rapidly than expected, with brown spots and peeling forcing $120,000 refurbishments at 331 hours of flying time, on average, instead of the stipulated 800 hours. "
还是蒙皮问题，起皱是F22的强大特征。
把灰机漂白，再斩喽，就是葛氏白斩机
难道说，
蒙皮起皱是有规则花纹的？
Washington post 里面的那些理由都是random 吧
我觉得那个可能是蒙皮沾接的方式。。。 中部的锯齿状的花纹应该是沾接的方式， 前面的条装花纹就不知道了.
F-22 在地面上，我看不到 哪里HEHE
花着凃花纹就是花的。这几句有开玩笑的嫌疑，也有认真的成分。真真假假，人家的国防机密咱没水平证实，不过Delamination这个词我实在是太熟悉了。
请问晨大，这两者是同一原因吗？
F-22的超巡速度只有M1.6，SR-71可是达到M3.0，速度大不一样，蒙皮温度也差好多。再者，复材的热胀冷缩很小，不像钛合金，所以应该没有这样的“升温密封”的事情。
明明是最近泡不到妞，瘦的排骨都出来了。