Type 054/A FFG Thread II


Tam

Major
Registered Member
Loongnaval tweeted this one. I am not sure if this is a fan construct or something that can be credible. Nor does it say which ship it might belong to.

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China Navy a Intergrated mast design

EOYhq5DU8AEbdRW.jpeg


Screenshot 2020-01-16 at 5.52.25 PM - Edited.png
 

Tam

Major
Registered Member
That's about right where I expect the Type 054B mast might end up looking.

The ESM, SIGINT and TACAN mast will have to be placed amidships on a tall structure of its own so no to lose their height advantage.
 

ougoah

Captain
Registered Member
The height difference between where the main radars are set makes me wonder why the 346B on the 055 are set so low like on US based AEGIS designs that the Koreans and Japanese also use. The Europeans seem to favour higher positions which should make sense when considering horizon and curvature? Or am I missing something? The Sampson units on British and French ships seem more like the config in this suggested frigate layout but 055's 346B are set so low like on AB destroyers.
 

Dante80

New Member
Registered Member
The height difference between where the main radars are set makes me wonder why the 346B on the 055 are set so low like on US based AEGIS designs that the Koreans and Japanese also use. The Europeans seem to favour higher positions which should make sense when considering horizon and curvature? Or am I missing something? The Sampson units on British and French ships seem more like the config in this suggested frigate layout but 055's 346B are set so low like on AB destroyers.
We've talked about this before, it's a trade-off really. The higher you have to put them, the smaller/less capable they are and the more difficult it is to cool and support them properly. The lower you put them, the more effective horizon coverage you lose.

The best of both worlds - at least as far as large combatants are concerned - is to use both approaches on the same ship.
 

Tam

Major
Registered Member
We've talked about this before, it's a trade-off really. The higher you have to put them, the smaller/less capable they are and the more difficult it is to cool and support them properly. The lower you put them, the more effective horizon coverage you lose.

The best of both worlds - at least as far as large combatants are concerned - is to use both approaches on the same ship.
Exactly. That is why there is a smaller radar with four sides on the mast of the 055.

And this is why the Type 052C/D has this. People should understand that the spherical dome happens to be a search radar. The rotating things are navigation radars. While they are used for navigating the ship, something that is flying low can also be spotted by them. See the long tube that is standing between the two navigation radars? That is a passive radar sensor, as well as the two things on the side of the mast. So in addition, if there is a sea skimming threat that is coming, the sea skimmer's radar emissions would be caught by these devices. This is all done ahead before the threat falls into the radar horizon of the lower radar radar.


052d-17.png Type_364_radar.jpg



Here you see similar devices on the Type 054A. The Type 382 radar itself is situated high enough to cover an extended radar horizon but it is backed by Type 364 radar on the second mast, along by ESM units and navigation radars. Note that the pole with the ladder like steps behind these radars should be the IFF that share the same radar horizon as the radars, so these antennas will try to interrogate and determine the low flying object as friend or foe while still early in the boundary of the radar horizon.


dsc07379.jpg cdy_1833.jpg Wuhu_(539)_Frigate_-_Type_364_Radar.jpg
 

ougoah

Captain
Registered Member
Exactly. That is why there is a smaller radar with four sides on the mast of the 055.

And this is why the Type 052C/D has this. People should understand that the spherical dome happens to be a search radar. The rotating things are navigation radars. While they are used for navigating the ship, something that is flying low can also be spotted by them. See the long tube that is standing between the two navigation radars? That is a passive radar sensor, as well as the two things on the side of the mast. So in addition, if there is a sea skimming threat that is coming, the sea skimmer's radar emissions would be caught by these devices. This is all done ahead before the threat falls into the radar horizon of the lower radar radar.


View attachment 56793 View attachment 56794



Here you see similar devices on the Type 054A. The Type 382 radar itself is situated high enough to cover an extended radar horizon but it is backed by Type 364 radar on the second mast, along by ESM units and navigation radars. Note that the pole with the ladder like steps behind these radars should be the IFF that share the same radar horizon as the radars, so these antennas will try to interrogate and determine the low flying object as friend or foe while still early in the boundary of the radar horizon.


View attachment 56795 View attachment 56796 View attachment 56797
Your knowledge is impressive and I'm not just talking about this post. You should write articles in English. Would be far better quality than what those usual clowns can muster. Then again with a background in media communications, it's no surprise western military journalists are so hopeless (intellectually too, God I hate journalists). Half of those "military reporters" wouldn't know the difference between a turbofan and turbojet. I seriously think many on this forum (and some others) would make fantastic reporters and writers for magazines. Janes calibre level.
 

Tam

Major
Registered Member
Thanks for the kind words.


The next picture conveniently allows you to compare the different radar and sensor heights between the Type 052D and the Type 054A. Taken during the Sea Guardian exercises and both ships are part of the 34th escort task force on their way to the Gulf of Aden. Both ships are equipped with things I have not seen before on these classes of ships like new searchlights on top of the deckhouse. These are convenient for an anti-piracy mission.

Posted by LKJ86 at the PDF.

16fa17452fa97165590617.jpg
 

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