Everything we know so far.
Russia will apparently use surplus UR-100UTTKh (NATO: SS-19 Stiletto) and the RS-28 Sarmat liquid-fueled intercontinental ballistic missiles (ICBMs) as the launch vehicle for its Avangard hypersonic boost-glide weapon.
The new weapons will initially be deployed onboard UR-100UTTKn missiles that were returned from Ukraine after the 1991 collapse of the Soviet Union. Once the Sarmat is ready for operations, the Avangard will be deployed on that 200-ton missile also.
“In the early 2000s, about 30 UR-100N UTTKh liquid-propellant missiles were delivered from Ukraine for the ‘gas debt,’” a Russian defense industry source told the Moscow-based …read more
Source: The National Interest