美國的PrSM導彈的速度就是超高音速，見裏麵洛馬的新聞發布。PrSM的Increment 2就是反艦的PrSM。

https://news.lockheedmartin.com/2023-11-16-lockheed-martin-s-precision-strike-missile-completes-shortest-range-flight-test#:~:text=One%20Precision%20Strike%20Missile%20(PrSM,the%20missile%20and%20trajectory%20control.