Vietnam Defence Forum

[Viet]

I have not heard about any forthcoming upgrade plans in the short term.

I do know that 3 Talwar-related ships are sitting in Russia without powerplants (because of the Ukraine conflict) and that India has expressed on and off interest in acquiring these (since Ukraine will supply India the Gas turbines). The thing is according to some other sources, India wants to build them from scratch at its own shipyards. If thats the case, maybe Vietnam can buy these admiral-grigorovich frigates?:

3 hulls are up for grabs right now I think. You basically have to do the powerplant integration (India can do that if Vietnam wants) and add and integrate whatever weapons suite you want (again India can do that if needed). Since India has experience with the Barak 8 and MF/Star, that can be looked at with this platform too (though the MF/Star integration may be an issue regarding any structural modifications that may needed to the ship deck). Other options are available too I would assume so Vietnam can optimise as it sees fit. Russia-India can maybe provide a line of credit as well for the whole deal if needed.

It can be a juicy deal clincher for the Russian Cam Ranh Bay lease as well I think.

Much better if seeing joint development and production between our nations in shipbuilding. Our new Ba Son shipyard will be ready in 2-3 years. I hope our people shrug off hesitation.

 

[Carlosa]

Latest update on the reclamation on Spratly island:

This is the way it should look when completed

 

[Nilgiri]

Latest update on the reclamation on Spratly island:

View attachment 315835

View attachment 315836

This is the way it should look when completed
View attachment 315838

This is a viet one?

 

[Carlosa]

This is a viet one?

Yes.

Another one recently reclaimed, this one is West London Reef:

Sin Cowe Island (Dao Sinh Ton):

 

[Viet]

Latest update on the reclamation on Spratly island:

View attachment 315835

View attachment 315836

This is the way it should look when completed
View attachment 315838

looks the island size will double when completed, with a runway long enough for Su-30.
I expect we will base a pair of fighter jet there, coming along with air-defence missiles.

 

[Carlosa]

looks the island size will double when completed, with a runway long enough for Su-30.
I expect we will base a pair of fighter jet there, coming along with air-defence missiles.

I very much doubt that there will be fighter jets based there, the marine environment is deadly for them, they require a lot of support which makes no sense to have in such an small island and they would be sitting ducks in case of a surprise chinese attack. And still, they would be outnumbered by the chinese jets based on Fiery Cross.

The runway makes sense for bigger aircraft like a C-295 or a C-130 and comes handy if a SU-30 needs to do an emergency landing. I don't expect more than that.

 

[Viet]

I very much doubt that there will be fighter jets based there, the marine environment is deadly for them, they require a lot of support which makes no sense to have in such an small island and they would be sitting ducks in case of a surprise chinese attack. And still, they would be outnumbered by the chinese jets based on Fiery Cross.

The runway makes sense for bigger aircraft like a C-295 or a C-130 and comes handy if a SU-30 needs to do an emergency landing. I don't expect more than that.

hmmm...how building hardened shelter for the jets and basing a battery of S-300 missile and our bread and butter S-125 Pechora? both air defence systems will stop any short, medium and long range aerial threats.

 

[Farhan Bohra]

The Weapon Package that Offered to Vietnam for Project 159 Upgrade

 

[Carlosa]

The Weapon Package that Offered to Vietnam for Project 159 Upgrade

Sundar !!!!! (beautiful) bro. Looks great, I just don't understand the logic of installing such a great package in a 50 year old hull, but it would be nice to have those weapon systems.

 

[Carlosa]

hmmm...how building hardened shelter for the jets and basing a battery of S-300 missile and our bread and butter S-125 Pechora? both air defence systems will stop any short, medium and long range aerial threats.

Having hangars is mandatory if you are going to base aircraft there, but look at the size of that island, its way too small for that and S-300 also? I don't see it bro, you need to have a much bigger island. You can't defend such an small island effectively from all types of threats including amphibious assault, etc. They can hit the island with MLRS rocket launchers (300 km range) based on Quarteron reef. How do you defend from that? Its easy to saturate the defenses of such an small place.

 

[Farhan Bohra]

hmmm...how building hardened shelter for the jets and basing a battery of S-300 missile and our bread and butter S-125 Pechora? both air defence systems will stop any short, medium and long range aerial threats.

The following is the IAF's S-125 upgrade program. Maybe you find this interesting.

A much welcome spinoff from the DRDO’s two-decade long R & D activities for the Akash-1 MR-SAM programme has now resulted in the development of an indigenous upgrade package for the Indian Air Force (IAF) remaining S-125 Pechora SAM systems that will extend their service-lives by another 12 years.

Restricted tenders worth US$272 million to upgrade 16 of the original 30 squadrons of the IAF’s S-125 Pechora SAM systems under the ‘Make in India’ programme were floated in May 2016 and were sent to TATA Power SED, Larsen & Toubro, Reliance Defence, Offset India Solutions, Amertec Systems Pvt Ltd, Bharat Dynamics Ltd (BDL), Bharat Electronics Ltd (BEL) and ECIL. While the V-601 missiles will be refurbished by BDL with the help of Russia’s OJSC Concern Almaz-Antey, the existing analogue fire-contol systems will be fully digitised by Indian OEMs, following which they will be integrated by BEL with the IAF’s IACCCS network.

BEL will also deliver the Rohini S-band 3-D CARs and related motorized command-and-control posts that will replace the older P-19 early-warning radars. Amertec Systems Pvt Ltd will supply the digitised LRUs and related ATEs for the upgraded SNR-125 pulse-Doppler tracking, fire-control and guidance radars. Deliveries will begin 42 months after contract signature.

However, this upgrade contract does not in any way postpone or stall the IAF’s plans for procuring 18 squadrons of Barak-8 MR-SAMs and LR-SAMs.

The Indian Air Force’s S-125 Neva (export name Pechora) uses the V-601 (or 5V27) missile has a length of 6.09 metres, a wingspan of 2.2 metres and a body diameter of 0.375 metres. This missile weighs 953kg at launch, and has a 70kg warhead containing 33kg of HE and 4,500 fragments. The minimum range is 3.5km, and the maximum is 25km. The intercept altitudes are between 100 metres and 18km. Radars used for the original S-125 included the following:

P-15M(2) TROPA 1RL13 C-band target acquisition radar, which comprised a single antenna on a tethered latticework mast. It was employed to improve low altitude coverage, but also to permit use of the radar in heavily forested terrain where the height of the foliage canopy exceeded the height of the antenna phase centre in the P-15. The P-19 DANUBE 1RL134 was the improved 2-D UHF follow-on to the P-15 with a range of improvements.

SNR-125 I/D-band tracking, fire-control and guidance radar, which uses a pair of fixed scanned trough antennas to generate flapping fan shaped beams, but the design is inherently SORO with a separate transmit antenna mounted between the characteristic chevron arrangement of trough antennas. Optical adjunct tracking using the 9Sh33A Karat 2 television telescope has been installed on later variants, initially the SNR-125M1. The antenna at the top of the turret is used for the low power missile FMCW uplink channels. The antennae functions are, respectively:

* UV-10: Transmit for target and missile tracking, Transmit/Receive for rangefinding, Transmit/Receive for initial target acquisition, Receive for clutter cancelling channel. The boom mounts a cluster of feed horns, including a rotating scanning feed, each producing unique mainlobes. The scanned acquisition beam mainlobe is 1° wide and swept through a 15° arc in elevation at 25 Hz, the mainlobe for target tracking, transmit and rangefinding receive is 10° wide.

 

[Farhan Bohra]

* UV11 F1 and F2: Receive antennas for target and missile transponder beacon tracking. These produce 1° x 15° fan shaped mainlobes which sweep through a 15° arc.

* UV-12: Missile uplink antenna for the FMCW 12 Watt command link.

The SNR-125 was designed to acquire targets using only bearing and range inputs from an external 2-D acquisition radar, such as a P-12/18 or P-15M. When acquiring a target, the radar head is rotated to the target bearing and the UV-10 antenna scanning feed engaged to produce a 1° wide pencil-beam swept in elevation. Once the target is acquired the radar is switched into tracking mode, using the UV-10 antenna to transmit, the UV-10 to receive for ranging, and the scanning UV-11 chevron receive antennas for angle tracking. The radar head is mechanically steered in azimuth and elevation to maintain track. The radar provides manual tracking, automatic tracking and television angle tracking modes. The system provides five missile guidance control laws, TT (CLOS), PS, MV (LoAlt), K (surface target attack) and DKM (ballistic). Three missile uplink signals are employed, K1 and K2 for pitch/yaw steering, and K3 for fuse control. Russian doctrine in the presence of heavy jamming was often to cease emitting and use the scanning receiver to effect angle tracking of the jammer, acquire the target with the TV telescope, and perform a range unknown missile shot against the jammer in CLOS mode. Due to the addition of a clutter canceller and analogue MTI circuits, the SNR-125 has significantly better clutter rejection performance. Cited low altitude capability is against targets as low as 20 metres (~60 feet AGL).

PRV-11 Vershina E-band height-finder radar.

The Indian Army’s 48 motorised 9K33 OSA-AKM SHORADS have since 2006 been upgraded by Poland’s Wojskowe Zakłady Uzbrojenia SA, with BDL refurbishing the 9M33M3 missiles with the help of Russia’s JSC Izhevsk Electromechanical Plant KUPOL subsidiary ofOJSC Concern Almaz-Antey.

Sundar !!!!! (beautiful) bro. Looks great, I just don't understand the logic of installing such a great package in a 50 year old hull, but it would be nice to have those weapon systems.

I dont know but if enough life is remaining in the hull, then its worth upgrading.

This is not about new and old. During Gulf war, USS Missouri (a ww2 vintage) was firing Tomahawk. Nobody in Baath Party knows that in receiving end that who firing at them, a newly built destroyer Arleigh Burke class or USS Missouri.

 

[Carlosa]

The following is the IAF's S-125 upgrade program. Maybe you find this interesting.

A much welcome spinoff from the DRDO’s two-decade long R & D activities for the Akash-1 MR-SAM programme has now resulted in the development of an indigenous upgrade package for the Indian Air Force (IAF) remaining S-125 Pechora SAM systems that will extend their service-lives by another 12 years.

Restricted tenders worth US$272 million to upgrade 16 of the original 30 squadrons of the IAF’s S-125 Pechora SAM systems under the ‘Make in India’ programme were floated in May 2016 and were sent to TATA Power SED, Larsen & Toubro, Reliance Defence, Offset India Solutions, Amertec Systems Pvt Ltd, Bharat Dynamics Ltd (BDL), Bharat Electronics Ltd (BEL) and ECIL. While the V-601 missiles will be refurbished by BDL with the help of Russia’s OJSC Concern Almaz-Antey, the existing analogue fire-contol systems will be fully digitised by Indian OEMs, following which they will be integrated by BEL with the IAF’s IACCCS network.

BEL will also deliver the Rohini S-band 3-D CARs and related motorized command-and-control posts that will replace the older P-19 early-warning radars. Amertec Systems Pvt Ltd will supply the digitised LRUs and related ATEs for the upgraded SNR-125 pulse-Doppler tracking, fire-control and guidance radars. Deliveries will begin 42 months after contract signature.

However, this upgrade contract does not in any way postpone or stall the IAF’s plans for procuring 18 squadrons of Barak-8 MR-SAMs and LR-SAMs.

The Indian Air Force’s S-125 Neva (export name Pechora) uses the V-601 (or 5V27) missile has a length of 6.09 metres, a wingspan of 2.2 metres and a body diameter of 0.375 metres. This missile weighs 953kg at launch, and has a 70kg warhead containing 33kg of HE and 4,500 fragments. The minimum range is 3.5km, and the maximum is 25km. The intercept altitudes are between 100 metres and 18km. Radars used for the original S-125 included the following:

P-15M(2) TROPA 1RL13 C-band target acquisition radar, which comprised a single antenna on a tethered latticework mast. It was employed to improve low altitude coverage, but also to permit use of the radar in heavily forested terrain where the height of the foliage canopy exceeded the height of the antenna phase centre in the P-15. The P-19 DANUBE 1RL134 was the improved 2-D UHF follow-on to the P-15 with a range of improvements.

SNR-125 I/D-band tracking, fire-control and guidance radar, which uses a pair of fixed scanned trough antennas to generate flapping fan shaped beams, but the design is inherently SORO with a separate transmit antenna mounted between the characteristic chevron arrangement of trough antennas. Optical adjunct tracking using the 9Sh33A Karat 2 television telescope has been installed on later variants, initially the SNR-125M1. The antenna at the top of the turret is used for the low power missile FMCW uplink channels. The antennae functions are, respectively:

* UV-10: Transmit for target and missile tracking, Transmit/Receive for rangefinding, Transmit/Receive for initial target acquisition, Receive for clutter cancelling channel. The boom mounts a cluster of feed horns, including a rotating scanning feed, each producing unique mainlobes. The scanned acquisition beam mainlobe is 1° wide and swept through a 15° arc in elevation at 25 Hz, the mainlobe for target tracking, transmit and rangefinding receive is 10° wide.

Very nice. Vietnam is doing the upgrade from Belarus, the Pechora-2TM.

 

[Viet]

here are some details I got from the report about the recent product, with the goal of producing unmanned armed gun boats for high risk missions.

what we need: taking the domestic made 12.7 mm rifle. specs: manufactured by Z111 factory, weight 12.5 kg, bullet caliber 12.7x108 mm, effective range 1,200 m, magazine with 5 bullets.

installing the 12.7mm rifle on a remote controlled platform, here test firing

Putting the rifle system on a vessel, such as this small one. Look: nobody drives the boat!

because the vessel is controlled by a computer. camera aboard transmits live images to the computer, at a distance of 15 km.

 

[Carlosa]

I've found these drawings online for a possible upgrade of the Petya ships, but I don't know if this is for real or its just someone's fantasy dream. They show 2 different types of upgrades; in one of them, there is whole new superstructure.