RSN's latest warship RSS Formidable arrives from France
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Im' guessing those things on the side are part of an Active Defense Counter Measures.
There are currently only so few ways to guide a missile against a ship. 2 most common flavors are radar-guided, or TV-guided, IR-image guided.
Since its not easy to launch a radar guided missiles at a stealth ship, my guess would be some sort of "Blinder," to blind the Optical guided types. -
Kang Ting--La Fayette class .Taiwan.
Formidable class.fr http://www.mindef.gov.sg/imindef/home.html
Spainish F1oo fr
http://jczs.sina.com.cn/2005-08-08/0853311394.html
2.Does Formidable class has this design?
large flat angled surfaces of The Visby Class corvette ,Sweden.
fr http://www.kockums.se/surfacevessels/visby.html
Note the concept of 'Advantage zone' in this link. -
The reflectors are already mounted. Check out ST's closeup picture of Adm Teo at the bridge. The one with the word Formidable. On the upper left of the pic there is a strange angled piece of metalOriginally posted by tripwire:i wonder... will the malaysian navy send their warship to check check see see if their radar can detect the formidable.
they probably have all the various ships, ground radars and planes line up along the entire melaka strait, waiting for the arrival of the formidable.
but then... if i am not wrong... the formidable was escorted by at least one of our MCVs during the passage throught the straits... probably to mask the formidable's radar signature by sailing side by side..
once they the formidable is in dock... i think they will add some "radar reflective" attachments to fool our potential enemy into thinking that our stealth ship... isnt really so stealth.
its useful in times of peace to mislead.... in times of war... then they will be surprised...
if i am the commander of RSN... i would do that... no point flaunting our stealth capabilities.. unless we really really need to give them a fright. -
If u find any better postings of photo with similiar angle ,tell me.
fr
http://www.mindef.gov.sg/imindef/news_and_events/nr/2005/aug/05aug05_nr.html
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Want to learn RCS,study in NUS.
fr http://www.ece.nus.edu.sg/stfpage/elelilw/SR06.htm
DST5312 Advanced Sensors:
SR06-Introduction to Radar Cross Sections
2.RCS of aircraft
Aircraft [dBsm] RCS... RCS[m2] ....RCS.[ft2]
F-15 Eagle... +26... 400... 4,305
B-1A... +10...10 ...108
F-16 Fighting Falcon...+7 ...5...54
B-1B Lancer...0 ..1... 11
Rafale 0...1 ..11
Typhoon...-3 .. 0.5 ..5.5
BGM-109 Tomahawk ...-13...0.05..0.5
SR-71 Blackbird ...-18...0.015...0.15
F-22 Raptor..-22...0.0065..0.07
F-117 Nighthawk..-25... 0.003.. 0.03
B-2 Spirit..... -28...0.0015...0.02
AGM-129 ACM ... -30...0.001...0.01
Boeing Bird of Prey...-70 ...0.0000001....0.000008
fr http://www.aerospaceweb.org/question/electronics/q0168.shtml
3.RCS of modern naval ship wanted
All wanted ,excepted Sg unless authorised. -
RSS Formidable,Formidable class.
Is the gun is retractable? -
Below one:Singapore Formidable class
Above 3:French La Fayette F714 Frégate Guépratte (F714 - Equipage mixte).Sea trial Jan 2001.fr http://www.defense.gouv.fr/sites/marine/decouverte/presentation/unites/batiments_de_surface/batiments_de_combat/batiments/fregate_la_fayette_f710/fregate_guepratte_f714_-_equipage_mixte/
http://en.wikipedia.org/wiki/FS_Guepratte
The upper part of Formidable is spilt into two parts,compared with F714. -
Interesting enough, the bridge of the formidable appears to be of a lower height and profile than that of the Kang Ding and Lafayette.
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A fern mentioned above the reflectors to expose the ship in radar.
Radar reflector performance is a direct function of size, proportional to the fourth power of its linear size. Doubling a reflector's size increases its effective area 16 times.
fr http://www.tri-lens.com/practical_sailor.txt
In today ZAOBAO 10.08.05.Are there few reflectors facing the stern/heli deck? -
reflectors could also be a "safety feature" in aid of navigation, to ensure that the frigate appear as a large blip on the merchant ships' radar...Originally posted by touchstone_2000:The reflectors are already mounted. Check out ST's closeup picture of Adm Teo at the bridge. The one with the word Formidable. On the upper left of the pic there is a strange angled piece of metal -
remember the time when the Victory class MCVs first appeared..?? they have such "clean" lines... but then after a while all sorts of sensors and gadgets start popping up all over the place.Originally posted by tripwire:well... for a start.. from the photo alone.. you will realise that the formidable is not only smaller and shorter, but it also has a lower superstructure compare to the french version... i think its trying to mimick the visby's low silouette design.
secondly.. the upper half slopping of the formidable mimicks the visby slopping which is all the way to the tip of the bow.. unlike the french ship, their upper slopiing is about 10 meters short of the bow on both sides.
lastly... french frigate radars and lots of other gadgets are exposed all over the top of their ship... while the formidables are either enclosed or shielded or simply not visible.
that's my prelimary opinion.
I think the formidable will probably have more sensors coming up... soon.. -
A pickup truck, for example, with its flat surfaces and sharp edges has an RCS of approximately 200 sq m, but a smooth-edged fighter jet has an RCS of only 2 to 4 sq m. The RCS of any given object, however, differs at various angles and radar frequencies. Much about stealth technology remains classified, but among the antidetection techniques used in the U.S. Air Force F-117 Stealth fighter plane (which probably has an RCS of 1 sq m or less) are a low profile with no flat surfaces to reflect radar directly back,
fr http://www.bartleby.com/65/st/stealtht.html
2.What are RCS of naval ships" -
Top:Outline drawing of the Meko A-200 SAN.Sea Trial 2005.
overall length:121 m.beam overall:16.34 m.Displacement:3,500 metric tons.
http://www.naval-technology.com/projects/meko/index.html#meko3
Third:TYPE 45 DARING CLASS ANTI-AIR WARFARE DESTROYERS,UK.Under construction.To enter service 2009.
Length 152.4m (overall) Displacement :7,350t (full load)
http://www.naval-technology.com/projects/horizon/
Above 3 Fr ST 06.08.05.
Pl replace with better photo!!Formibable looks like Meko than La Fayette.
2.Estimated data derived fr the photo
Distance from waterline(the line between 2 colors)
'Roof' of bridge 13.2m ;(length of bridge 14.8m)
Tip of superstructure behind bridge 22.4m
Tip of mast 32.m
Heli deck 4.8m
bridge =control room.Dunt laugh.Some may not know.RSN guy or girl
pl amend if i am wrong in terms.
http://www.fas.org/man/dod-101/sys/ship/beginner.htm -
Typical head on Radar echo at microwave frequencies
by Wg Cdr V Kumar (retd)
OBJECT RCS (sq. mts.)
35000 ton frigate.........10000-30000
Pick up truck................. 200
Automobile....................100
Jumbo jet airliner...........100
Large bomber................40
Cabin cruiser boat.........10
Large fighter aircraft.......5
Small fighter aircraft.......3
Adult male......................1
Bird ...........................0.01
Insect ....................0.00001
fr http://www.pcquest.com/content/technology/102101208.asp
Hope Formidable class's RCS around 10m2!! -
Originally posted by lionnoisy:
lionnoisy , you belived the above data ?
by Wg Cdr V Kumar (retd)
fr http://www.pcquest.com/content/technology/102101208.asp
Typical head on Radar echo at microwave frequencies
OBJECT RCS (sq. mts.)
35000 ton frigate.........10000-30000
Pick up truck................. 200
Automobile....................100
Jumbo jet airliner...........100
Large bomber................40
Cabin cruiser boat.........10
Large fighter aircraft.......5
Small fighter aircraft.......3
Adult male......................1
Bird ...........................0.01
Insect ....................0.00001
Errm , personally the above information is highly questionable value
Example -
Pick-up truck have RCS of 200
While a Jumbo jet airliner have RCS of 100
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To tell u the truth,I cant say they are 100% corrrect for the writers
sure know more then i do.u can check their background.
To answer if RCS of car bigger than a jet,pl note:RCS depends on three factors:
There are many info on the net.Among them.
Geometric cross section,Reflectivity,Directivity
http://www.aerospaceweb.org/question/electronics/q0168.shtml
2.A pickup truck, for example, with its flat surfaces and sharp edges has an RCS of approximately 200 sq m, but a smooth-edged fighter jet has an RCS of only 2 to 4 sq m. The RCS of any given object, however, differs at various angles and radar frequencies. Much about stealth technology remains classified, but among the antidetection techniques used in the U.S. Air Force F-117 Stealth fighter plane (which probably has an RCS of 1 sq m or less) are a low profile with no flat surfaces to reflect radar directly back, the intensive substitution of radar opaque composites in place of metals,.......
fr http://www.bartleby.com/65/st/stealtht.html
3.RCS comparsion tableNote the surface ship's.
fr the above aerospaceweb link.the last is aircraft carrier.
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4.Any naval gun in the world can be submerged below the deck after firing?Answer at ur own risk. -
Not sure but those deck mounted guns of the second world war german submarines looked like naval guns to me.
So I guess they could be submerged. It depends on the casting process and whether the gun barrels were navalised (treated). -
The gun turret can be improved. The sides looks too vertical in the above photos.
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could be perspective.....
the bridge look lower because the area in front of the bridge (with the Aster VLS) is protruding up a a level higher then the main deck....
it is not a "handsome" ship, but it looks purposeful and hi-tech..... hopefully, it is steathly lor.... :-) -
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The side of the turret should be sloped at the same angle as the edge of the deck.Originally posted by spencer99:could be perspective.....
the bridge look lower because the area in front of the bridge (with the Aster VLS) is protruding up a a level higher then the main deck....
it is not a "handsome" ship, but it looks purposeful and hi-tech..... hopefully, it is steathly lor.... :-)
Alternatively at a more aggressive slope as to point reflection somewhere else. -
i don't understand that angle thing. it's not like ships of the past were all huge rectangular blocks.
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The gun turret cowling looks like the new Mk45 naval gun from the USN.
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want to know sequence of building UK T45 destoryer?
http://www.royal-navy.mod.uk/video-gallery/qt/lo/14.mov -
