Zircon is being developed by the NPO Mashinostroyeniya military and industrial corporation based in the town of Reutov. Work has been in hand since 2011. Speed of the missile will reach up to 7,400km per hour. For two minutes and a half it will be able to overcome 250km.
While the British means of missile defence can down projectiles at the speed of 3,700km per hour. Thus, they will be useless against the Russian weapon. As Pravda.Ru reported, hypersonic weapons will have been deployed by the Russian army by 2020.