▲ Hwasongpho-20 《화성포-20》형 ICBM diameter
The estimated casing diameter is 2.31 meters. The HSP-20 is therefore similar in size to the M51. The French M51 is an intercontinental, three-stage, solid-propellant submarine-launched ballistic missile (SLBM), measuring approximately 12 meters in length, 2.3 meters in diameter, and weighing about 52,000-53,000 kg. It boasts an operational range of 8,000 to 10,000 km and carries multiple independently targetable re-entry vehicles (MIRVs).