中国的东风17是模仿了美陆军的的AHW导弹项目。因果关系之前讲过：
https://bbs.wenxuecity.com/military/1620529.html
AHW在2011年试射了一次，从夏威夷射到马绍尔，约3500公里，完成了分离滑翔跳跃变轨等等一系列动作，非常成功。
2012年又射了一次，参数输入错误，失败了。后来军方觉得用此方式避免对手核反击有点一厢情愿的意思，就把项目吊起来了。
之后项目移交海军，2017年10月从俄亥俄潜艇试射一次成功，飞行的老路线- 夏威夷到马绍尔岛，发射代号 CPS FE-1。
事后项目负责人说了段意味深长的话，大意是“如果最高当局作出选择的话，我们已随时准备好将其装备进俄亥俄潜艇发射筒”。言外之意，美军目前并没计划装备它。美军钟情的高超音速武器其实并不是它，而是自带动力大气层内，无需借助火箭发动机的，一种是高超音速巡航导弹（美澳去年已试射一次，很神秘，没细节），还有HAWC等等
那么既然不装备，试射它有什么用呢？很简单，美军要用它做靶弹，既然中国发展了东风17，美军就要开始演练拦截它了。
瞧，你的杀手锏还未阅兵，人家同样逼格的靶弹却已轻松提前准备好了等着你。去年底标准3 IIA成功拦截的就是这个高机动滑翔靶弹
原文：
The Navy Strategic Systems Program and the Department of Defense this week tested a conventional prompt strike capability that could one day be fielded from guided-missile submarines.
The Pentagon’s conventional prompt global strike capability would allow the U.S. to hit any target on the planet with precision-guided weapons in less than an hour, supplementing the comparable nuclear strike capability and serving as another deterrence effort.
Strategic Systems Program (SSP) Director Vice Adm. Terry Benedict said on Nov. 2 that “I’m very proud to report that at 0300 on Monday night SSP flew from Hawaii [Pacific Missile Range Facility] … the first conventional prompt strike missile for the United States Navy in the form factor that would eventually, could eventually be utilized if leadership chooses to do so in an Ohio-class tube. It’s a monumental achievement.”
The admiral spoke at the Naval Submarine League’s annual symposium in Arlington, Va. He credited his organization for, in addition to working on the nuclear weapons that support the Ohio-class boomers and their Columbia-class replacement in development now, “we have supported the OSD AT&L defense-wide account for technology demonstration, and on our first go out of the box a very successful flight of a conventional prompt strike maneuvering reentry body.”