Dear Goll:
I would just like to point out to you that the first successful launching of an anti-ship missile occured from Soviet-supplied Egyptian Komar-class patrol boats firing the Styx missile (NATO designation SSN-2) at the Israeli destroyer Eilat.
The missile boats were out at sea at the time and lauched the heavy missiles while underway (i.e. moving at sea). Several direct hits sunk the Eilat with a large loss of life. This occured sometime after the Six-Day War.
The Komar class boat is much smaller and more unstable than the Type 22 FAC of the PLAN. Their Styx missiles were designed in the 1950's and were slower and had shorter range than the modern Chinese missiles.
The ships radar and detection system were 50's era Soviet stuff on a tiny vessel, displacing some 85 tons. The missile guidance system was pretty primitive. Only in the warhead was that thing awesome - 500 kilograms of high explosive!
It was this very experience that woke Western navies up to the potential of the anti-ship missile, and led directly to Israels' developement of the Gabriel.
Here's the article from Global Security:
"Project 183R PTG Komar Class
Soviet missile boats include Komar [Mosquito] class, with a range of 800 nautical miles at 25 knots and 400 nautical miles at 30 knots respectively. They are armed with the Styx missile, which has a range of 18 miles and carries a 1100-pound conventional warhead. The development of the P-15 Styx SS-N-2 missile began in 1954, with the first launch in October 1957 from a Komar FAC prototype.
The first in the world missile boats were built at ALMAZ. Manouevring high-speed boats of 183Ð project equipped with ship-to-ship cruise missiles became new efficient arms of the Navy. In compliance with higher requirements of the Navy to the composition of arms, navigability and operational capability a project of a new steel hulled missile boat was developed. The results of performed scientific-and- engineering works and full-scale tests of the boat of 183Ð project underlay the basis of creation of the boat of 205 project.
The October 1967 destruction of the Israeli destroyer Eilat by 'Styx' anti-ship missiles fired from an Egyptian Komar-class vessel which set off the explosion in fast attack craft [FAC] sales. This followed the proliferation of Soviet-produced Project 183R Komar-class and Project 205 Osa-class FAC in the navies of the then Warsaw Pact and other Soviet client states.
The usage of boats with missile weapons in combat actions proved to be very important for increasing the defensive capacity of the country. Missile boats are a universal means of destruction of an enemy's ships and vehicles, of guard of the coastal area and of struggle against landing troops.
The boat of the project 183P "Komar" had a hangar type launcher, and the wings of a rocket did not unfold. The launcher rails were were rigidly fixed at an angle of 11,5 °. The launcher was originally made 4.5 meters long, and then it was shortened to 2,75 m. The weight of the launcher is 1100 kg. Under the project the boat of the project 183P could fire rockets at speeds from 15 up to 30 knots and a condition of the sea up to sea state 4. Reloading launchers it was made in base, thus on one rocket it was spent about 30 minutes. On the boat it was placed PUS "Klen" which obtained the data from RLS "Rangout". Function PUS was development of a fighting rate of a boat and its deduction on a rate, development of time of independent flight of a rocket, parameters onboard and keel rolling for stabilization of a rocket etc. Reserve means for targeting was optical sight PMK-453"
So as we can see it is entirely possible to operate and launch even very large anti-ship missiles from a small patrol boat at a much larger warship.
Best Regards,
Dusky Lim