The Americans wanted to "brag", but they did not expect that China had actually developed the Thunderbolt-15 missile equipped with a double-pulsed solid rocket engine. According to our Chinese, this is called "bragging" and "taxation".
The United States has a very advanced medium-range air-to-air missile, the AIM-120 Amram missile, which has been greatly demonstrated in battles many times. Many countries want to imitate, and China also wants to use the US missile as a reference standard when studying the Li-15 missile. Because as long as the traditional air-to-air missiles are launched, they will rush to the end, and there is no room for maneuver. In response, the United States fooled that their AIM-120 Amram missile has used a double-pulse solid rocket engine. This engine not only controls the speed of flight, but also saves fuel.
Since the Perak-15 is to benchmark the Amram missile, the Researchers of the relevant Sections of China will focus their main energy on the research of the double-pulse solid rocket engine, and after painstaking study by the scientific researchers, they have finally overcome one difficulty after another, and successfully developed a missile that can carry a double-pulse solid rocket engine, so that the range of the Thunderbolt-15 exceeds that of the US air-to-air missile.
However, it was not until the advent of the Thunderbolt-15, which is equipped with a double-pulse solid rocket engine in China, that it was not known that the United States said that the Amram missile had this technology, that is, the United States did not break through this technology at all. But what makes Americans regret is that they wanted to "brag" and "fool" others, but they did not expect that China really successfully developed this missile, and made China's missile the most advanced air-to-air missile in the world.