PLAN Type 035/039/091/092 Submarine Thread

kw64

Junior Member
Re: PLAN submarines Thread II

I have never seen any photo of Yuan shows indications of flank sonars, I'll be extremely surprised if Yuan uses hidden flank sonar design.
 

crobato

Colonel
VIP Professional
Re: PLAN submarines Thread II

Crobato,

Suprised to read that the Songs have Flank Array Sonar.

The images of PLA subs having flank array sonars is 3 white lines at the side of the subs. 091 - 094 images shows the lines.

I do not know about the latest Yuan subs but no Songs images have these painted lines nor have I read about any article saying Song have flank array sonars.


Only because this policy is only implemented recently, at least from late 2006 onwards. Old 091 and 092 images don't show the white lines either. They only appeared in the refitted/improved Hans. It is likely the refitted Xia will have this too.

In the CDF, there is one picture that shows a Song actually having the white lines. Most Songs were built before this recent requirement. Another picture of a Song being built in the dock show that surface of the lower hull isn't even, that there is a slight bulge, which can be taken as indicative of a flank sonar. See where the red arrow is pointed at the picture. Papers, such as the SDF, also refer to the Song having a flank sonar. Flank sonars were also tested among Mings.

Please note that the Song pictured is actually one of the earlier ones, although the sail has been modified into the late version design.

Kw64, you probably didn't see the picture of the first Yuan in the dry dock with a young PLAN sailor posing in front of it. The sailor is a drummer for the ship's launching ceremony. Check those patches.

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enroger

Junior Member
Registered Member
Re: PLAN submarines Thread II

Wondering if sound absorber tiles would interfere with flank sonar? Or they just leave that area open?
 

crobato

Colonel
VIP Professional
Re: PLAN submarines Thread II

They're laying adhesive, but they could be putting tiles of different composition and thickness. Acoustic rubber tiles are meant to defeat active higher frequency sonars by absorbing them, but low, or long frequency sonars are a different matter. Flank sonars are generally of the low frequency sort, which is absorbed less by mediums and have a greater range.
 

dlhh

New Member
Re: PLAN submarines Thread II

Only because this policy is only implemented recently, at least from late 2006 onwards. Old 091 and 092 images don't show the white lines either. They only appeared in the refitted/improved Hans. It is likely the refitted Xia will have this too.

In the CDF, there is one picture that shows a Song actually having the white lines. Most Songs were built before this recent requirement. Another picture of a Song being built in the dock show that surface of the lower hull isn't even, that there is a slight bulge, which can be taken as indicative of a flank sonar. See where the red arrow is pointed at the picture. Papers, such as the SDF, also refer to the Song having a flank sonar. Flank sonars were also tested among Mings.

Please note that the Song pictured is actually one of the earlier ones, although the sail has been modified into the late version design.

Kw64, you probably didn't see the picture of the first Yuan in the dry dock with a young PLAN sailor posing in front of it. The sailor is a drummer for the ship's launching ceremony. Check those patches.

Please, Log in or Register to view URLs content!

Crobato, Thanks for the info.
 

maozedong

Banned Idiot
Re: PLAN submarines Thread II

U1335P27T1D496835F3DT20080423141940.jpg


PLA newspaper report of the North Sea Fleet submarine detachment do a good job on single-boat fleet synergies and highly difficult training courses, improve the combat effectiveness of the military to explore new avenues. Photograph shows a certain type of submarine in mid-April for emergency training to a floating camera. -- Special correspondent Wang Songqi perturbation
 

crobato

Colonel
VIP Professional
Re: PLAN submarines Thread II

Xinhui posted this satellite pic at the CDF. It shows two Yuans. Comparing to the other Yuan picture in post 168 its a match. Note the red crane in both pictures. I had a suspicion that the tunnel in right in the first pic of post 168 might have another sub.
 

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