Just a thought, not neccessary related to H20. Since by general consensus, the Sept 3rd parade is for weapons/platforms already in service, so JL-1 ALBM is in service either at evaluation/operational testing stage or already in regular service stage, what aircraft was or would be used for evaluation & testing stage? How was the prototype launched for flight testings from an aerial platform before entering service?
There are only 3 large aerial platform that we know, IL-76, Y20 and H6N. If either of these 3 aerial platform are not ideal carrier for JL-1, Why the service induction of JL-1 ALBM now? If the original platform (H20?) is postponed due to the need to re-design due to new requirement, and if a war suddently break out how would JL-1 be deployed before H20 becomes FOC?
Does this mean the "original designed" H20 was already near maiden flight stage before it was postponed ? Or there is an expectation that there might not be a major delay in time for the appearance of "re-designed" H20?
Look at the overall situation, and let's work with the JL-1 having a range of up to 8000km
On Day 1, we could expect the Taiwanese Air Force to be non-operational.
That means the H-6 (with fighter escort) could fly past Taiwan and then launch the JL-1 against Hawaii.
Another example would be launching in the SCS, at American bases located in Australia.
Currently, China has no realistic way to reach these targets.
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Yes, using JL-1 ALBMs will be expensive. CSBA previously published a cost estimate of $20 Million for an American version of a DF-26, which is a larger missile than the JL-1.
But look at the much larger cost of the potential targets.
At airbases, B-2 bombers cost $1000 Mn and the B-21 will be $500+ Mn
In port, there will be stationary carriers and destroyers also costing Billions
Given that the JL-1 is supposedly based on the DF-21, then it could have anti-ship seeker, like the DF-21D and DF-26. That's anti-ship ballistic missiles reaching 9000km+ from mainland China.
So it's worth fielding hundreds of JL-1 ALBMs for these targets.
Edit
Add the naval bases in Seattle and possibly San Diego as well