PLAN Type 075 LHD discussion

About having a well deck on an ASW carrier, one should remember the PLA only has a small budget at it’s disposal.

It’s quite possible that they installed the well deck to let the LHDs perform other tasks beside being ASW platforms because they don’t have the budget to build separate platforms.

 

I am not sure PLAN even have a potential target where that well deck could be put to good use, its not like they will send an expeditionary force across an ocean. ASW carriers are really what they need, but it does not harm to make it more multifunctional, nevertheless.

 

Why is speed has anything to do with ASW role of LHD ? It is not like the LHD is going to hunt submarine on it s own It does not make sense. so whether ship is using CODAG or CODOD is irrelevant.
As long as the LHD can keep up with the rest of CBG or Convoy that is good enough
Most likely it will be deployed as a part of convoy or CBG to provide submarine screen for the CBG using its large number of ASW helicopter

Any LHD is multipurpose by its nature nothing surprising here . The article in SINA does not specifically said it is sole duty is anti submarine So I am perplexed why you said it is speculation? There is nothing speculation in the excerpt that I quote
Even Izumo is classified as multipurpose but you can considered it as ASW type of flat top The designation is originated in WWII where they converted big cruiser or large civilian ship into small carrier to hunt submarine and to function as escort of convoy of ship transiting the Atlantic. VS a large carrier that is built to protect ships from air attack and to provide offensive capability. And has minimum ASW plane like Gannet
Notice this sentence
small aircraft carrier whose primary role is as the nucleus of an anti-submarine warfare hunter-killer group
By this definition any LHD equipped with large ASW Heli can be considered ASW flat top

An anti-submarine warfare carrier (ASW carrier) (US hull classification symbol CVS) is a type of small aircraft carrier whose primary role is as the nucleus of an anti-submarine warfare hunter-killer group. This type of ship came into existence during the Cold War as a development of the escort carriers used in the ASW role in the North Atlantic during World War II.

 

I may be being more than a little facetious, but if the LHD can't keep up with the fleet... slow down the fleet.

 

In ASW, it's fairly simple to turn from hunter into a prey.

Furthermore, Vmax isn't the only mutually contradictory requirement between ASW carrier and a LHD.

 

That is assuming that the submarine is running at 30+ knots which rarely done in hunting mode Submarine does not use their max speed in hunting mode since they exacerbate the noise due to hull hydrodynamic and screw cavitation. They will be easily detected. Most submarine rarely goes more than 17knots in hunting mode. Max speed only used for transit!
So your argument is big BS!

Another thing running on diesel engine does not foreclose that the ship cannot make 30 knots
Some of the Russian sub can go as fast as 45 knots So the argument that LHD with CODAG can run run 30 knot! is a moot point

Max speed will only be used during transit How do submarine evade their pursuer by staying stand still and doing nothing until the pursuer left or in diesel sub they use the electric motor fed by battery doing slow creep

 

I just looked up the Wasp and America classes and they both have a top speed of around 20 knots. So the article claiming that the 075 will give the PLAN similar capabilities to the USN's amphibious ships cannot be countered by claiming the 075 can't move at 30 knots. The Izumo and Hyūga are unusual in this regard, which I would put down to the Japanese flagrantly violating the spirit of the law forbidding them from fielding aircraft carriers. In any case, China certainly has the means to juice the performance of the 075 by installing four gas turbines at 30+ MW apiece (I believe a GT25000 variant has reached 33MW and is aiming for 40 using intercooling and recuperation).