Hendrik_2000
Lieutenant General
Here to refresh the memory see the position of the winch.Your ratio is wrong because it is distorted by perspective It should be 0.38
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The PLAN LCAC Type 726 Yuyi Class
- Thread starter Jeff Head
- Start date
Here to refresh the memory see the position of the winch.Your ratio is wrong because it is distorted by perspective It should be 0.38That's awesome. These photos are even worse for you than the image I used. I had assumed that the skirt was only about as wide as the side spotlights. In fact the skirts extend way further out from the spotlights, and I see that you just conveniently decided to ignore the skirts as if they didn't exist.
You were also generous with the spacing of the vehicle deck. I measure 191/571 = 33.5, slightly less than my earlier measurement.
Anyway, here is where you made a glaringly obvious mistake:
You measured "200" when you should have measured 183. 28*(183/320) = 16.01. It's still 16m, tough guy.
Lethe
Captain
Given the apparent limitations of the type -- that is to say, being inferior even to the current US LCAC, let alone the forthcoming STSC -- it is somewhat surprising that it is being put into production.
That said, I guess such vessels have more applications for China than operating from Type 071/075. When improved variants are available existing craft can be devolved to other units/roles.
That said, I guess such vessels have more applications for China than operating from Type 071/075. When improved variants are available existing craft can be devolved to other units/roles.
Hendrik_2000
Lieutenant General
It is in deflated position so you cannot use as measurement.Because the whole weight acted on the cushion since the sand is solid that it why you see the droop. When it is inflated and in the water it will be perpendicular I make allowances of 1/2m.Plus I believe they let the air too to lower the deck
What your problem is you are using perspective picture to measure. It get distorted
You need to use plan view or elevation view . Enough said
You measured "200" when you should have measured 183. 28*(183/320) = 16.01. It's still 16m, tough guy.
And you make to short again this is perspective view with 30 degree angle not exactly elevation view there is slight distortion. I measure the opening the dark shaded image
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Exactly my thinking as well. It would be disappointing to see the 726 put into mass production. If it is, I would expect these to eventually be succeeded by a more efficient design, with the 726 being relegated to secondary roles, maybe stationed in the SCS. The problem with the 726 isn't just that less vehicles are delivered per sortie, but also that the 071 is 'forced' to carry more 726s in order to deliver more total vehicles per sortie. By comparison the San Antonio carries only 2 LCACs but can deliver approximately 3 times more volume than the 726, which translates into an overall 50% greater capacity per LPD sortie (depending on vehicle type), with the additional benefit of a smaller well deck and thus larger vehicle decks.
No, I used YOUR photos and YOUR ruler to make these latest calculations. Also, your 'theory' of sand altering the shape of the skirts is only valid if you can actually demonstrate this is the case. The skirts are also NOT in deflated position. This is quite obvious, especially if you compare your photo to my photo, in which the skirts ARE actually deflated. You also have left unanswered your erroneous measurement of the well deck.
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Not surprising actually. Inferior it might be, it is still better than nothing. This is how PLA adopts new technologies.
PLAN and PLAMC did the right thing. They didn't mind starting low and humble. Now not only they have a fleet of working LCAC, but also years of experience in using LPD and LCAC that is invaluable for refining the successor of both.
Look no further than the 052 series for a living example. Who would have foreseen the 052D when the first original 052 was spotted in her dock?
Had PLAN passed over 726 and waited for something comparable to US LCAC, they would have had nothing by now, and even worse, they would still have nothing in a few more years to come.
Hendrik_2000
Lieutenant General
They have to deflate in order lower the deck and allow the ramp to touch the ground or sand
So it is in deflated position. Because now the weight acted on lower pressure cushion causing the cushion skirt to droop
It is all logical. Gee if you don't understand I don't what will.You are definitely not technical person. I give up
You make erroneous calc because you use perspective picture and not elevation view So your beam dimension 530 is incorrect
In my picture you use pixel 580 is incorrect too because you measuring drooping air cushion skirt and take it as normal inflated position
I did explain why I measure the opening because it is not elevation level and measuring chain winches on the well deck of type 71 will give you erroneous calc
I think the main function of type 726 is to carry the main battle tank to shore and nothing else the PLA amphibious APC has water jet propulsion and doesn't need to be carry by LCAC
It is one of the fastest amphibious vehicle in the world
So different philosophy from US They did their job
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asif iqbal
Lieutenant General
Honestly I haven't read all the comments here
Can someone summerize the argument here what are we discussing ?
Can someone summerize the argument here what are we discussing ?
Lethe
Captain
Taking your example of 052, that type was not put into mass production. Rather PLAN waited until 052C before committing to more than a couple of units.
I'm not saying that it makes no sense to put 726 into production, only that it is a bit surprising -- with the program having seemingly been dormant for so long, I expected that when it did move to production it would be in a significantly refined form.
If 726 has been put into production, this tells us that an improved type is not "just around the corner", for if it were then surely PLAN/MC would just wait for it. If a significantly improved variant will have to wait for some time (say ~2025) then in the interim it makes sense for China to order a limited number of 726s -- maybe a dozen? -- to bolster the utility of the Type 071s and allow for improved training and learning opportunities.
True. On the other hand, the 726 class LCACs are much less expensive. PLAN should be able to afford starting with a few or even a dozen. Also LCACs must be used "in volume" for best result. PLAN didn't have anything else that could even mock LCAC for training. So PLAN likely had to order a certain number of 726s, even if not totally satisfied.
It is rumored that the delay was due to technical difficulties. By unverified accounts, the first few 726s had trouble making turns in flight. The engines also had issues.
Agreed. Even in long term, all 726s can still find good uses.