Sorry for my bad english. But in Chinese language, rumors are this type adopts "无轴泵推" ("Shaftless pump push" by google translate). Can this be confirmed by the new image? If so, does it help a lot in reducing noise?
09III/09IV (093/094) Nuclear Submarine Thread
- Thread starter SinoSoldier
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Kindly list the source(s) for the rumors?
Meanwhile, in my best knowledge, 无轴泵推 can also be referred using its other name, i.e. rim-drive propulsion:
(@5unrise also mentioned about rim-drive propulsion being one of the likely features on the upcoming 096-class SSBN in his 096 SSBN video)
Regarding whether the rumour of rim-drive propulsion can be confirmed/verified using the new (satellite) image - Unfortunately (or perhaps, fortunately) the entire pumpjet section has been wrapped with opaque layers of packaging, so I don't think it is possible for us the public to figure that out from the photo itself.
So far, what we can be fully certain is that the 093B employs pump jet-style propulsion.
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There is no indication that a rim drive/shaftless propeller is in development for any Chinese nuclear submarine.
Years ago there was a misinterpretation of a CCTV interview with Prof Ma, but there was nothing about a rim drive/shaftless propeller and people have continued to signal boost that false information.
Based on this image:
- we don't know if the submarine has a shrouded propeller (or pumpjet) versus a traditional propeller. The satellite image isn't high enough quality to definitively tell either way, but it does look like there's a possibility it may be a shrouded propeller (or pumpjet).
- if it is a shrouded propeller (or pumpjet), there is next to no chance that it's a rimdrive/shaftless propeller, because there is no expectation for such a system of propulsion having been in development to begin with.
No, that's a bit of a stretch.
The satellite image isn't clear enough for definitive confirmation.
We can say that "based on the latest imagery" 09IIIB *might* have a shrouded propeller (or pump jet), but we cannot definitively rule out that it might just be a normal propeller enclosed in a protective cover for launching purposes.
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If the sub does end up having a VLS well, it will signify some drastic internal structure and layout changes, compared to previous subs. As far as I know, when US/Russian subs would add VLS to their previous design iterations - subs would inevitably get visibly longer. But this doesn't seem to be the case, as the length is similar at around 110, and the width also seems similar (as much as low resolution can allow us to estimate).
That's very interesting. It appears that RDP is to pumpjet what ducted fan is to turbofan.
My theory is that the 2(?) reactors in the original 093 has been replaced with just one, which leaves room for the VLS. Also looking at the model it seems the TAS has been deleted or moved?
Has this photograph been posted in this forum before?
Gosh, only if there is site-specific image search function as well...
Gosh, only if there is site-specific image search function as well...
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Well, I think the 688i class wasn't longer than 688 despite adding 12 VLS, though of course its VLS was added in front of the sail between the torpedo tubes.
But it is still an addition of VLS without significant increase in length, meaning some sort of conservation of length is viable.
Why do you believe 09III had two reactors?
Yes it has been, but I suspect most people didn't see it the first time around when it was posted, so that's fine.
This:
Not sure where H I Sutton got his info from though.