I agree the Type-56 would act as tripwires.
But I actually think an equally important function will be to act as an ASW node, because they can rely on other assets for Air Defence (Type-52, Type-55, AWACS, land-based fighters etc)
If I look at the publicly available documents on distributed ASW sensor systems from the USA - a Type-56 could cover a significant area with something similar. And these sensor systems look very inexpensive to me, so they can be widely deployed.
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Remember that the US Navy is moving to a doctrine of distributed sensing and lethality where the actual platform doesn't matter.
On this measure, China building large numbers of cheap Type-56 fits this doctrine very well.
But I actually think an equally important function will be to act as an ASW node, because they can rely on other assets for Air Defence (Type-52, Type-55, AWACS, land-based fighters etc)
If I look at the publicly available documents on distributed ASW sensor systems from the USA - a Type-56 could cover a significant area with something similar. And these sensor systems look very inexpensive to me, so they can be widely deployed.
---
Remember that the US Navy is moving to a doctrine of distributed sensing and lethality where the actual platform doesn't matter.
On this measure, China building large numbers of cheap Type-56 fits this doctrine very well.