来源：玉渊谭天

　　F-47可能还没有走出PPT，美国又宣布要为F-35进行大升级，并命名为F-55。这件事仔细看下来，画风逐渐变得不对，因为特朗普宣称在升级为F-55的过程中，将其改造为双发动机战斗机，这种改造难度有多大？

　　↓戳视频，一起分析如此反常规的操作，美国究竟打的什么算盘？

海量资讯、精准解读，尽在新浪财经APP

责任编辑：何俊熹

Disclaimer: Investing carries risk. This is not financial advice. The above content should not be regarded as an offer, recommendation, or solicitation on acquiring or disposing of any financial products, any associated discussions, comments, or posts by author or other users should not be considered as such either. It is solely for general information purpose only, which does not consider your own investment objectives, financial situations or needs. TTM assumes no responsibility or warranty for the accuracy and completeness of the information, investors should do their own research and may seek professional advice before investing.