I hadn't heard of the 9M730. That page links to one for the US Air Force's Supersonic Low Altitude Missile (SLAM) or "flying crowbar" of the 50s and 60s, which

I hadn't heard of the 9M730. That page links to one for the US Air Force's Supersonic Low Altitude Missile (SLAM) or "flying crowbar" of the 50s and 60s, which makes for fascinating reading: https://en.wikipedia.org/wiki/Supersonic_Low_Altitude_Missile https://en.wikipedia.org/wiki/Supersonic_Low_Altitude_Missil...