 Army training manuals about the missile are available on the internet and public open-source literature extensively describes it; the DF-21 has a comparable range and payload.Though much is made of the DF-21D's damage infliction ability based solely on velocity and kinetic energy, the Australian Strategic Policy Institute has calculated that the energy of an inert RV impacting at Mach 6 had similar energy to the combined kinetic and explosive power of the American subsonic Harpoon anti-ship missile, which is one-quarter the energy of the Russian supersonic Kh-22 missile traveling at Mach 4 with a warhead.The missile was shown to the public during the parade in Beijing celebrating 70 years since the end of World War II on September 3, 2015.