CV-18 Fujian/003 CATOBAR carrier thread

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nlalyst

Junior Member
Registered Member
Intrepid said:
I thought we had agreed to recognize the Kuznetsov / Liaoning / Shandong propulsion system?

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This is just my amateur opinion, but from a functional standpoint I find it a bad idea to cluster all boilers into one compartment and all steam turbines into another. Compared to historical machinery arrangements on steam ships, that would be atypical. This is how the US steam BBs had their machinery arranged: South Dakota, Iowa and Montana in descending order
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In all 3 BBs, boilers are either in the same compartment with the turbines, or adjacent to them.

And this is how I see the Type 003 machinery arranged. Each yellow section would be self-contained and able to handle 2 screws. Assuming the primary turbine generators are steam fed, they should be adjacent to the boilers and propulsion turbines, so also somewhere in the yellow sections.
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Intrepid

Intrepid

Major
nlalyst said:
In all 3 BBs, boilers are either in the same compartment with the turbines, or adjacent to them.
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The arrangement of the eight boilers and four turbines of Kuznetsov / Liaoning / Shandong is known and it is not the same as in one of your three battleships: four boilers next to each other in the front boiler room, behind that two turbines next to each other. Four boilers next to each other in the rear boiler room, behind that two more turbines next to each other. What we've seen of 003 so far suggests that the same arrangement is being used here.

There is also a video in the internet of the Shandong, where the propeller shafts are craned down through the openings in the engine rooms, which extend up to the flight deck.
 
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nlalyst

Junior Member
Registered Member
Intrepid said:
The arrangement of the eight boilers and four turbines of Kuznetsov / Liaoning / Shandong is known and it is not the same as in one of your three battleships: four boilers next to each other in the front boiler room, behind that two turbines next to each other. Four boilers next to each other in the rear boiler room, behind that two more turbines next to each other. What we've seen of 003 so far suggests that the same arrangement is being used here.

There is also a video in the internet of the Shandong, where the propeller shafts are craned down through the openings in the engine rooms, which extend up to the flight deck.
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This is how you drew it back in 2016, which is exactly what I described above. Each yellow section self contained and powering 2 screws. Boilers close to the turbines, just like in the BBs, but the BBs have the machinery more spread out along the long axis.
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N

nlalyst

Junior Member
Registered Member
Intrepid said:
The gearbox is with the steam turbines and forms one single visible object.
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What's the size ratio of reduction gear to a turbine?

Could the assembly's large size be explained by the possibility that it also containes the turbo-generator, something like this hybrid drive arrangement:
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Intrepid

Intrepid

Major
It is unconfirmed whether it is the same drive concept as at Kuznetsov / Liaoning / Shandong. First glimpses of the installations in the engine rooms only suggested suspicion. It can also be completely different.
 
T

taxiya

Brigadier
Registered Member
Richard Santos said:
Those are far too large to be steam turbines, steam turbines would be considerably smaller than boilers.
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as @Intrepid has said steam turbine and gearbox as a unit is larger. I haven't seen a photo of steam turbine of Kuznetsov / Liaoning / Shandong, but here is the 20MW electricity generation unit. Here you can see that the unit is much larger than the turbine, more than three times in volume.
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Here with people standing beside as reference, count the average height as about 1.75m.
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We also know that 003 has EMALS whose power requirement is an extra from its predecessors. Without lowing its speed, the overall power from the turbines must be significantly larger. That means the steam capacity and turbine size or number have to increase. Although this increase can not ascertain what those bright objects are, the opposite (what they are not) can not be ascertained either.
 
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