It is noted that the first two missiles with an unarmed warhead were launched on September 4, and two more on September 6.
At the end of June, the American military-industrial company Raytheon introduced a project of a hypersonic rocket with a ramjet engine. Raytheon vice president Tom Bassing said that rocket test flights will begin shortly.
Initially, the designers developed a rocket for launching from the air, but the possibility of launching from the ground or ship is also being discussed.