A couple years back I put my estimate of type 56 corvettes that would be built at around 60. Still seems a reasonable figure, might be a bit higher.
I have a suspicion that rather than being an offensive weapon, it is a defensive weapon. The idea that these smaller craft can patrol a large area of coast, acting as an area denial weapon. The idea being to make life for enemy submarines, aircraft, and to some extent surface ships difficult to operate close to China's coastline. Working as a radar picket or as a sweep for submarines, the main idea would be to detect threats, and then call for backup. Given China's coastline, the amount of commercial shipping, more ships is better. Additionally if one gets sunk, it would not be a massive lost of presitge, say half the sailors get killed and half escape, that is only 30 KIA (not good if your one of the thirty, but not a nation shattering event)
After the 60 or 70 are built, will China then go for a larger model, say around 2500t
Will they need more than 70 if some ships are also needed for commercial shipping escort?
Does anyone else notice the similarity between the type 56 and the Sigma class corvettes?