Victor III

oh I see, you mean really turboelectric propulsion… I never heard anything about that on Victor or any other submarine. It would make this sub very silent, yet the Akula is even more silent. Well it is said that the Victor is more quiet than an Akula when that Akula is badly maintained. Akula has more extensive silencing measures, but these on their behalf need a lot more maintenance and considering the Russian thinking about maintenance 😮
I see what you mean with those transversal tubes. I don’t think any sub has that. It’s used a lot on surface vessels. Merchant vessels use it mostly, sometimes LPDs and other large ships use it too. It’s a huge electricity-eater, if you don’t warn the engine-room before using these, you risk to lose your entire electricity supply. The engine room just has to put every single Auxiliary on for using these bow and stern thrusters. They’re also only effective at speeds of about 2-4kts (the latter number really being the maximum). Otherwise the flow of water along the tubes is too strong.
I don’t see what this could help for Victor or any other sub. Indeed at the really slow and silent speeds, these tubes could be used. But I don’t see the use of it. It moves your ships laterally, 90° on your heading. To avoid a torpedohit, it makes your ship move too slow (they’r used for mooring these large vessels). For any other manoeuver, I don’t see which one it would be useful, certainly considering the extra-cost, extra burden on your electricity supply and extra-noise generated by these large holes (diameter about 1.5-2m)

Well, about the turboeclectric i mean, the use of electric diname-generator to avoid noisly gearing, about the mini-pumps, is the use of transversal tubes with pumps to make an water side-side flow (that sistem is used in some surface ships to increase manuverability), about the mini-props, well i dont think that the practical use for increase speed ,small props are uneficient at high revolutions(HR)-you need HR to an efective energy transfer-, the use of such sistem is in patrol speeds (3-5 knots-low revolution-), instead big propels are uneficient at low revolutions, maybe also could be used with the main propel to reach 1-2knobs-plus.

You put an very very good point about the MAD, but you must consider also that such sistems use the relative movement of an body in the earth magnetic field, so if the sensor is not in an relative movement with the sub, theres not interference, anyway KOLOS for me are still an mistery

Regards.

Hmm, good questions. I’ll have to take a look at the drawings when I get back. (have to hop from one place to the other). The complete drawing has the numbers with the (Russian) explanation below. Had to cut it away to post it here.
Anyway, what do you mean with Turboelectric? As I said, it’s nuclear propelled. I think item 49 is the back-up diesel engine, every SSN has its back-up conventional engine to get to port when something happens with the reactor.
Russian mini-pump tunnel? Can you explain?
mini-props are indeed there, like on Alpha. I haven’t seen any Victor III in dry-dock, so I’m not sure whether it is really there… These little two props probably have to do lots of rounds to get a decent speed, I think that would add to the noise generated by cavitation.

I have indeed thought about that MAD technology too. I agree that it seems the only possible non-accoustic way of detecting a submarine. Yet, I don’t see how it could be applied. The Victor’s body mass of steel is very large, hence I don’t see how they could determin anomalies and keep the thing from going mad(MAD :dev2: ) by its own mass.

Thanks Severo, well there are some interesting things about the cutaway that i would discuss,

1) nuclear cores (2) in tandem (side-side) position???
2) theres any signal of turboelectric sistem???
3) we can see those smalls mini-props to patrol speeds.
4) theris signal of tipical russian mini pump-tunnel maneuvre sistems???
5) item 49?????
6) how many tipes of periscopes uses???

Well, there are other open questions, KOLOS sistem???, suposely it tries independence of the very untrusted sonar, but i cant think in other better pasive detection than MAD, its posible the use of magnetic anomalies to detect subs from other sub???, well an more easier questions, victor3 dive deep??? (dive deep increase the eficiency of LF sonar (not MF), and stealth -thermal,dinamic flow layers)

I think in heavy seas more chances of the lookout post on conning tower being awash. not that a SSN would be doing U-boat attacks on the surface though.

Akula style hull? Yes. Blended sail, no, November already had it.
As for Blended sail, I think it’s lower compared to the US style sails, gives a slightly smaller range for your radar while surfaced. Also better for hydrodynamics I suppose.
Yet, the US sail might add something to the stabilisation of the ship, not sure though.

so was the Victor-III the first appearance of the “Akula style hulls” or were there previous Soviet submarines with the blended sail concept ?

does anyone know the pros and cons of blended sails? the USN uses the conventional sail type even in its latest submarines.

Here we go, I hope it works. I have larger versions of them too.

It’s a nuclear propelled sub. SSN. As for double hull, yes, it reduces the noise a bit since it makes a “buffer”. Yet it makes your sub larger/heavier. I’ll try to dig up a nice cutaway drawing of it.