The missile defense systems of the Type 55 combine surface-to-air missiles, anti-ship cruise missiles, land-attack cruise missiles and anti-submarine missiles.
It has a total of 112 vertical launch systems (VLS) with 8x8 units in the front deck and 6x8 units in the middle. For the air defense, the ship could be equipped with missiles including
HHQ-9B long-range air defense missiles and HQ-16B mid-range air defense missiles. According to the Chinese Naval Industry, Type 55 could be also equipped with a type of mid-close-range surface-to-air missile developed from the DK-10 missile. The HHQ-9B is a naval version of the HQ-9, a medium- to long-range, active radar homing surface-to-air missile. The HQ-16 is a Chinese-made medium-range air defense missile system.
Type 055 could be equipped with
YJ-18 anti-ship missiles designed for use against ships and large boats. Chinese media claims the missile has an
inertial guidance system using BeiDou Navigation Satellite System data and carries a 300 kg high-explosive warhead or an anti-radiation warhead to destroy electronics at short range.
https://www.navyrecognition.com/ind...ssile-destroyer-nanchang-of-chinese-navy.html