PLA Navy news, pics and videos

no_name

Colonel
Hmmm, this has always puzzled me - I have seen a few ships (particularly indian and chinese) ships with this - the the hull has this "wrinkle" or "ripple effect" - can someone enlighten me as to why this happen? It makes the ship look like its made of paper meshes! I have never seen this on the western ships.

This has been discussed before and you can see this on all modern warships if the lighting is right. (strong contrast at shallow incident angle to surface, like how waves looks flat from top but larger from parallel). There are examples of Hyuga, Burke and type 045 on the web. Something to do with surface cooling after being welded together. Older riveted ships I believe looks prettier.
 

Ultra

Junior Member
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That's because you haven't been paying attention. It's a function of modern shipbuilding techniques.


The example photos you gave are not as bad as the photo of that Type 054A. In fact you can hardly see it on the Zumwalt and none at all on Burke. The Type-45 has a uniform look to the wrinkle due the substructure, but on that 571 (Type 054A), the pattern of the wrinkle is uneven, not uniform. It looks like paper being wetted.


The photo of Burkes I can find:
USS_Arleigh_Burke_%28DDG_51%29_steams_through_the_Mediterranean_Sea.jpg
US_Navy_110918-N-BC134-014_The_Arleigh_Burke-class_guided-missile_destroyer_USS_Halsey_%28DDG_97%29_transits_the_Pacific_Ocean.jpg


See how uniform that pattern is, then compare that to the Type 054A.

ffg571-jpg.11131
 
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Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
The example photos you gave are not as bad as the photo of that Type 054A. In fact you can hardly see it on the Zumwalt and none at all on Burke. The Type-45 has a uniform look to the wrinkle due the substructure, but on that 571 (Type 054A), the pattern of the wrinkle is uneven, not uniform. It looks like paper being wetted.
See how uniform that pattern is, then compare that to the Type 054A.


Ultra, this has been discussed to some length before. Part of the reason is dependent on the way the sun hits the ship in particular photographs and/or whether the picture is taken at midday or morning/evening.
For example in the two photos you have the bow hull of both burkes have a similar "uneven" appearance due to reflecting water from the sea. OTOH the 054A's bow is smooth while the port, aft top side of its hull is "uneven" because the light is coming from that direction and reflecting the inherent uneven-ness more distinctly and is likely taken at morning/evening when the angle of the light is smaller.

PLAN ships also have a tendency for catching the sun and thus its shadows because of the lighter paint scheme on PLAN ships making reflections and uneven-ness quite a bit more obvious.

This isn't the best exampl because this pic seems to have been taken near midday, but if you look at the smoke stack of the closest burke you can see similar wrinkles due to the way the light hits it, but the darker paint partially masks the effect
7S95RVK.jpg
 

Ultra

Junior Member
Get back to me when you can come up with a better case than random qualitative descriptions and bald assertions about 'all you can find'.

Look, Ma! No wrinkles!

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That photo was no show. It just doesn't load.


yeah I recall a guy who got suspended because he wouldn't stop talking, in Type 05XY Thread, about "wrinkles" LOL

Really? I am interesed to read the previous discussion if someone would point me out....
 

Jeff Head

General
Registered Member
That photo was no show. It just doesn't load.




Really? I am interesed to read the previous discussion if someone would point me out....
Ultra, several long time members have explained this to you since you posted the question to me...and their explanations are correct.

You can indeed find similar "wrinkle patterns" on virtually all ships in the correct lighting.

It is an optical illusion. On those very vessels, if you were up close to them, and feeling them with your hand, those types of distortions in the metal would not be there.

Sure, you can go back and use search to find the discussions...but you will find the same.

Former SD member Rutim was suspended over this issue because he kept wanting to infer that the Chinese shipbuilding was inferior because of the pictures he would pick and choose that showed it. No matter what pictures were shown, no matter what good optical explanations were given...he would not let it go. Knoclk yourself out researching it...but please, do not fall into that trap.
 

Janiz

Senior Member
Not that all the photos of PLAN outside of 'business trips' around the world are made by the PLAN itself and distributed on the Chinese forums ;)

Chinese shipbuilders weldings are OK by any standard and accepted around the world. And it's not North Atlantic that PLAN warships will be sailing through.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
Not that all the photos of PLAN outside of 'business trips' around the world are made by the PLAN itself and distributed on the Chinese forums ;)

Do you mean "Note, all the photos of PLAN..."?
Because it's obviously untrue -- when PLAN sends ships for port calls, exercises, or deployments around the world other navies will quite happily take pictures of them not to mention civilians will take heaps of photos as well. So if you're implying the PLAN deliberately takes photos of their ships in a way to "mask" whatever deficits in their hulls I think you're way overreaching.

If you mean "Not all the photos of PLAN....", then I have no idea what you're trying to imply.
 
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