055 DDG Large Destroyer Thread
- Thread starter FarkTypeSoldier
- Start date
- Status
There is a good possibility that every cell on the 055 can hold a 9 meter long missile, unlike the 052D.
The 055 is observed firing the YJ-18 in the aft cells while the 052D fires the YJ-18 on the front cells. The YJ-18 is a missile around 8 to 9 meters in length and would require the cell with the 9 meter depth requirement (the total length of the cell would be around 10 meters or so to allow for the hot or cold launch system). For the 052D, you use the front cells for this because there is no machinery underneath the cells at the bow, as the machinery or citadel section begins from where the superstructure starts. The aft cells on the 052D only uses the HQ-9 as these are the ones that have a 7 meter depth requirement and the HQ-9 is nearly 7 meters long. The total length of these cells is probably around 8 meters or so to allow for the cold launch system. But the aft cells would be over the machinery section of the ship, which limits their potential depth and why the shorter cells are only used here.
For the 055 to use the long cells on the aft section means there might be minimal to no machinery in the aft section, and I will assume, similar to the 052D, there is not machinery in the bow or front section where the front cells are sitting. The machinery is exactly where the superstructure starts, and where it ends in the funnel, plus another machinery section on the small mast past the aft VLS. The section where the aft VLS is a modular one, and can be switched on the production line with a different one. This can mean for example, a section with even more VLS to raise it to 128, or with fewer but even larger VLS. But even with the 7 meter requirement cells, you can hold some form of long range missile, like subsonic cruise missiles. These cells are longer than an SM-6 or a Tomahawk.
Its out of topic, but I have to add that tumblehome shouldn't be an issue with stability. Its a proven hull design that goes back to antiquity, Age of Sail and even to the Pre-Dreadnought era. The one potential issue I see is that during rough seas, you can get plenty of wash on the deck, which you may wonder if there would be long term effects of such on the main gun and on the VLS.
USN did rough weather trials with Zumwalt and reported the ship to be very stable, in fact more so than a conventional hull. The roll was differerent but not "bad" different, just unusual if you come from a more traditional design. Part of the stability though is indeed achieved by cutting through waves rather than riding them, so wash over deck would be significant and should be accounted for in engineering.
PS: Sorry for the OT.
PS: Sorry for the OT.
It is certainly possible to make a tumble home hull stable. but all else being equal, a tumble home hull is less stable than a hull with vertical or flared sides because as a ship rolls, the amount of incremental bouyancy generated on the down side, which is responsible for creating the righting moment that stops the ship’s roll and rolls the ship back towards an even keel, is less on a tumble home hull.
The fact the tumble home hull has been used since antiquity is neither here nor there. There are other factors which makes tumble home design attractive. but better stability is not one of them.
The fact the tumble home hull has been used since antiquity is neither here nor there. There are other factors which makes tumble home design attractive. but better stability is not one of them.
Sir you joined in 2006 and started posting last week? SDF need to have a distinguished submariner badge.
China's Type 055 large destroyer Lhasa conducts live-fire drills, enhances combat capabilities
By Published: Feb 22, 2022 01:25 AM
Photo taken on January 12, 2020 shows the ceremony of the commissioning of the Nanchang, China's first Type 055 guided-missile destroyer, in the port city of Qingdao, East China's Shandong Province. Photo: Xinhua
The Lhasa, the second Type 055 10,000 ton-class large destroyer of the Chinese People's Liberation Army (PLA) Navy, recently conducted live-fire drills against sea, air and land targets, effectively enhancing the warship's comprehensive combat capabilities.
This is the second time the Lhasa has held seagoing exercises since the start of 2022 and experts said on Monday that the drills consolidated the vessel's operational capability in advance of more important operations soon to come.
A vessel training center attached to the PLA Northern Theater Command Navy recently organized the Type 055 guided missile destroyer Lhasa to participate in a maritime exercise in the Yellow Sea to boost the crew's comprehensive combat capabilities, China Central Television (CCTV) reported on Monday.
During the drills, the Lhasa conducted multiple training at an undisclosed sea region under complex weather conditions, CCTV said. The Lhasa searched for and launched attacks on sea targets with its main gun and after eliminating surface targets, incoming aerial threats put the warship's close-in weapons system to the test with the successful interception of the air targets.
Next, the Lhasa received orders to attack targets on land. The vessel again used its main gun and destroyed simulated hostile ground-based artillery positions, CCTV reported, noting that the crew also dealt well with emergency situations.
The exercise also included nocturnal maneuvers in formation, joint search and rescue, visit, board, search and seizure, live-fire light weapon shooting, and damage control assistance, CCTV reported.
In January, the Lhasa held in the Yellow Sea, with drills including attacks on maritime targets with missiles and artillery, search and attack on submarines, defense against nuclear, biological and chemical weapons attacks, according to media reports.
The two drills since the start of the year enhanced the Lhasa's combat capabilities and indicate that the warship is now ready for more important operations, a Chinese military expert told the Global Times on Monday, requesting anonymity.
As the second ship in the Type 055 class, the Lhasa entered service with the PLA Navy in March 2021, after the Nanchang, which was commissioned in January 2020.
China has launched eight Type 055 large destroyers, according to media reports.
Having a displacement of more than 12,000 tons, the Type 055 is equipped with 112 vertical launch missile cells capable of firing a combination of surface-to-air missiles, anti-ship missiles, land-attack missiles and anti-submarine missiles. It is also endowed with the capability to gain strong situational awareness and can play a command role in a flotilla, media reported.
Shi Hong, Executive Chief Editor of the Chinese magazine Shipborne Weapons, told the Global Times that the Type 055 is the world's best destroyer in terms of comprehensive capabilities, and the continued commissioning of ships in this class will contribute to the PLA Navy's combat capabilities.
- Status