PLAN Naval Helicopter & ASW Capability II


Tam

Major
Registered Member
Can somebody explain how capable are Chinese at Anti submarine warfare , cause i heard American submarines are quieter then a school of small plankton thats really quiet , my uncle Jack told me this hes a retired WW2 submariner , Uss Caiman SS 323
It doesn't matter how quiet you are when the ASW ship starts pinging because detection is based on reflecting sound waves, not quietness. The only thing a submarine can do is depend on their coatings to absorb the sound waves, which doesn't always work, and to use thermoclines --- different layers of water with different salinity and temperature variations --- to reflect these sound waves.

So the ASW ship or helicopter will use a VDS or variable depth sonar, which it tows behind the ship and it can lower through the thermocline, and starts pinging.

A lot of Chinese warships have VDS as a standard, including Type 056A corvettes and Type 054A frigates.
 

Mark777c

New Member
Registered Member
It doesn't matter how quiet you are when the ASW ship starts pinging because detection is based on reflecting sound waves, not quietness. The only thing a submarine can do is depend on their coatings to absorb the sound waves, which doesn't always work, and to use thermoclines --- different layers of water with different salinity and temperature variations --- to reflect these sound waves.

So the ASW ship or helicopter will use a VDS or variable depth sonar, which it tows behind the ship and it can lower through the thermocline, and starts pinging.

A lot of Chinese warships have VDS as a standard, including Type 056A corvettes and Type 054A frigates.
Thx for the reply , so is the Z-9 a good helicopter in asw ?
 

Tam

Major
Registered Member
Thx for the reply , so is the Z-9 a good helicopter in asw ?
Not really. Its a bit small for that purpose but its far better than nothing. PLAN also has the Ka-28, the Z-18 and a new version of the Z-20. All better because they are bigger. The Z-18 however is too big for the frigates and destroyers, the Z-20 is probably intended to fit the extended 052D.
 

by78

Brigadier
I think this is a picture from the recent naval exercise with Pakistani Navy.

I post this because this seems to be the first picture depicting helipad deck crew of a surface combatant with comprehensive head gear (helmet, goggles, ear protection), whereas previous pictures all seem to depict them without helmet and ear protection at least.
I think this shows some of the more basic equipment taken granted by navies with higher funding-per-personnel is finally filtering down to standard Chinese navy personnel.
This isn't to say the Chinese Navy necessarily were cutting corners before or currently in major ways, but some basic equipment previously possibly deemed "unessential" are probably slowly percolating through the forces due to greater funding-per-personnel.



One thing that will be keenly watched for is the wearing of flash gear by Chinese Navy sailors. We've seen them with gas masks during training before even on older second line surface combatants before, which is encouraging, but flash gear would help even more.
From a recent exercise. This seems to be a different type of head gear. It looks a lot like the helmets worn by helicopter pilots, except it's painted orange. I wonder what's mounted on the back.

 

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