Project 15470 frigate: Difference between revisions

Jump to navigation Jump to search
m (Minor corrections)
(Subtitle correction + minor corrections)
 
(5 intermediate revisions by the same user not shown)
Line 3: Line 3:
{{Infobox Ship Image
{{Infobox Ship Image
|Ship image=File:15471.png
|Ship image=File:15471.png
|Ship caption=''Rainfall'', c.2000
|Ship caption=''Yanaho'', c.2010
}}
}}
{{Infobox Ship Class Overview
{{Infobox Ship Class Overview
Line 10: Line 10:
|Operators=[[Itayana Navy]]
|Operators=[[Itayana Navy]]
|Class before= [[Haniel-class frigate|Project 10705 frigate]]
|Class before= [[Haniel-class frigate|Project 10705 frigate]]
|Class after= [[Project 15580 frigate]]
|Class after= [[Project 15490 frigate]]
|Cost=
|Cost=
|In service range= 2004-present
|In service range= 2000-present
|Total ships building=  
|Total ships building=  
|Total ships completed=32
|Total ships completed=24
|Total ships cancelled=24
|Total ships cancelled=
|Total ships active=32
|Total ships active=24
|Total ships laid up=
|Total ships laid up=
|Total ships lost=
|Total ships lost=
Line 40: Line 40:
|Ship power=
|Ship power=
|Ship propulsion= * 2-shaft COGAG system:
|Ship propulsion= * 2-shaft COGAG system:
* 2 x cruise gas turbines, 10,000 kW each
* As built: 2 x cruise (10,000 kW each) + 2 x boost (27,500 kW each) gas turbines  
* 2 x boost gas turbines, 28,500 kW each
* Post-MLU: 2 x cruise (14,000 kW each) + 2 x boost (32,000 kW each) gas turbines
|Ship sail plan=
|Ship sail plan=
|Ship speed= +32kn
|Ship speed= +32kn
|Ship range= 4,000 nautical miles at 18 knots
|Ship range= 4,000 nautical miles at cruise turbines
|Ship endurance=
|Ship endurance=
|Ship test depth=
|Ship test depth=
|Ship boats= 2 Type 440 cutters or 4-6 RIB boats
|Ship boats=  
* 2 Type 601 cutters ''or''
* 4-6 RIB boats (post-MLU)
|Ship capacity=
|Ship capacity=
|Ship troops=  
|Ship troops=  
Line 53: Line 55:
|Ship crew=
|Ship crew=
|Ship time to activate=
|Ship time to activate=
|Ship sensors= * Project 15471:
|Ship sensors= * As built:
** ''Fregato-M3'' 3D air search radar
** ''Fregato-M3'' 3D air search radar
** ''Klingo-95'' SAM guidance radar
** ''Klingo-95'' SAM guidance radar
** ''Leono-145'' fire control radar
** ''Leono-145'' fire control radar
* Project 15471 MLU:
* Post-MLU:
** Type 2132 3D air search radar
** Type 2132 3D air search radar
** Type 3100 SAM guidance / gunnery radar
** Type 3100 SAM guidance / gunnery radar
Line 66: Line 68:
** Hull-mounted sonar
** Hull-mounted sonar
** Towed array sonar  
** Towed array sonar  
|Ship countermeasures= 4x16 decoy launchers
|Ship countermeasures= * ECM suite
* 324mm acoustic countermeasures
* 324mm anti-torpedoes (?)
* 2x16 decoy launchers
|Ship armament=  
|Ship armament=  
* Project 15471
* As built:
** 2 missile mounts (8 missiles)
** 2 missile mounts (8 missiles)
** 36 SAM VLS cells
** 36 SAM VLS cells
Line 74: Line 79:
** 4x1 76mm guns
** 4x1 76mm guns
** 4x2 25mm automatic cannons
** 4x2 25mm automatic cannons
** 2x2 533mm torpedo tubes
** 2 RBU-6000 bomb throwers
** 2 RBU-6000 bomb throwers
** 2x2 533mm torpedo tubes
* Post-MLU:
** 4 decoy launchers
* Project 15471 MLU
** 2 missile mounts (8 missiles)
** 2 missile mounts (8 missiles)
** 36 SAM VLS cells
** 36 SAM VLS cells
Line 83: Line 87:
** 4x1 76mm guns
** 4x1 76mm guns
** 4 25mm rotary automatic cannons
** 4 25mm rotary automatic cannons
** 2 24-barrel multi-purpose launchers (MLU)
** 2x4 324mm torpedo tubes
** 2x4 324mm torpedo tubes (MLU)
** 2 24-barrel multi-purpose launchers
** 4 decoy launchers
|Ship armour=
|Ship armour=
|Ship armor=
|Ship armor=
Line 92: Line 95:
|}
|}


The '''Project 15470''' also known as the '''Rainfall-class frigate''' is a class of frigates in service with the [[Itayana Navy|Unifying Navy]]. Conceived as the primary unit of the Navy in 1990s, the ship was designed with extensive assistance of [[Orun Redisus|Redisan]] and [[Elatia|Elatian]] shipbuilders. The first two batches were constructed on the foreign shipyards or with foreign supervision, while further batches were entirely domestic. The lead ship was commissioned in 2000 and the initial plans to build sixteen vessels eventually expanded, making the family the mainstay of the Unifying Navy and its most numerous surface combatant.  
The '''Project 15470''' also known as the '''Rainfall-class frigate''' is a class of frigates in service with the [[Itayana Navy|Unifying Navy]]. Conceived as the primary unit of the Navy in 1990s, the ship was designed with extensive assistance of [[Orun Redisus|Redisan]] and [[Elatia|Elatian]] shipbuilders. The lead ship was commissioned in 2000 and the initial plans to build eight vessels eventually expanded, making the family the mainstay of the Unifying Navy and its most numerous surface combatant through 2000s and 2010s.  


==General characteristics==
==General characteristics==
The layout of the Project 15470 vessels is characterized by relatively low and extensive superstructure, several antenna masts, two funnels and a wide helicopter hangar. The hull is 138.1 m long overall, with a beam of 14.6 meters and the draught of 8.6 meters, including a 4-meter bulb housing the bow sonar array. The hull shape was reportedly modeled using computer simulations to optimize hydrodynamic performance.
The layout of the Project 15470 vessels is characterized by extensive superstructure, several antenna masts, two funnels and a wide helicopter hangar. The hull is 138.1 m long overall, with a beam of 14.6 meters and the draught of 8.6 meters, including a 4-meter bulb housing the bow sonar array. The hull shape was reportedly modeled using computer simulations to optimize hydrodynamic performance.


Ships of the class are powered by the {{wp|Combined gas and gas|COGAG}} propulsion system, with two 10kW cruise gas turbines and two 27.5kW boost gas turbines. The top speed is estimated to be in excess of 32 knots, while the operational range of 4,000 nautical miles at 18 knots is typical for contemporary frigates. Electrical power is provided by a set of steam generators using heat from cruise turbines, as well as backup diesel generators. The ships carry two 12-meter boats, standard minimum for the blue-water vessels of the Autocracy Navy; vessels post mid-life upgrade have been known to use 7-meter RIB boats on several occasions. Each ship has a crew of 193, with 11 officers and 37 warrant officers.
Ships of the class are powered by the {{wp|Combined gas and gas|COGAG}} propulsion system, with two cruise gas turbines and two boost gas turbines powering two reversible screws. The top speed is estimated to be in excess of 32 knots, with reports indicating as high as 36 knots on trials. The operational range of 4,000 nautical miles at economical speed is typical for contemporary frigates. Electrical power is provided by a set of steam generators using heat from cruise turbines, as well as backup diesel generators. The ships carry two 12-meter boats, standard minimum for the blue-water vessels of the Autocracy Navy; vessels after the mid-life upgrade have been known to use 7-meter RIB boats on several occasions. Each ship has a crew of 193, with 11 officers and 37 warrant officers.


The primary offensive weapon of the class is comprised of the two missile mounts amidships that allow variety of missile container launchers to be fitted. Initial ships used exclusively the imported ''Moskit'' anti-ship missiles, but at some point around 2008 further launchers were developed for other types of missiles, apparently including the modified ''Moskit'' derivative and the ''Kalibr'' cruise missile family. For anti-air defence, the ships carry 36 vertical-launch cells in three groups of 12 for various medium and short-range {{wp|surface-to-air missile|surface-to-air missiles}}. The exact types of SAMs in service of the Solar Autocracy are unknown, but are likely derived from [[Sante Reze|Rezese]], [[Orun Redisus|Redisan]] and [[Elatia|Elatian]] systems.  
The primary offensive weapon of the class is comprised of the two missile mounts amidships that allow variety of missile container launchers to be fitted. Initial ships used exclusively the imported ''Moskit'' anti-ship missiles, but at some point around 2008 further launchers were developed for other types of missiles, apparently including the modified ''Moskit'' derivative and the ''Kalibr'' cruise missile family. For anti-air defence, the ships carry 36 vertical-launch cells in three groups of 12 for various medium and short-range {{wp|surface-to-air missile|surface-to-air missiles}}. The exact types of SAMs in service of the Solar Autocracy are unknown, but are likely derived from [[Sante Reze|Rezese]], [[Orun Redisus|Redisan]] and [[Elatia|Elatian]] systems.  


Contrary to the contemporary naval design trends, ships of the Project 15470 carry an extensive artillery suite. A single dual-purpose 130mm gun is installed fore of the VLS cells, coupled with its own fire control radar and optical targeting module. It is known that the gun itself is licensed from Elatia, and is capable of firing 60 rounds a minute, but not much information is available on the targeting equipment. For close-range air defence, four 76mm guns of the [[Rezese|Sante Reze]] origin are installed in pairs midships, fore of the missile launchers; those are capable of 120 rounds per minute.  
Contrary to the contemporary naval design trends, ships of the Project 15470 carry an extensive artillery suite. A single dual-purpose 130mm gun is installed fore of the VLS cells, coupled with its own fire control radar and optical targeting module. It is known that the gun itself is licensed from Elatia, and is capable of firing 60 rounds a minute, but not much information is available on its targeting equipment. For close-range air defence, four 76mm guns of the [[Sante Reze|Rezese]] origin are installed in pairs midships, fore of the missile launchers; those are capable of 120 rounds per minute.
 
As build, ships were equipped with eight 25mm guns in twin manned powered mounts, two at the fore superstructure behind the fire control radar, and two on top of the hangar. For the anti-submarine warfare, ships of the class carry two twin 533mm torpedo tubes below the main deck fore of the hangar, and two RBU bomb throwers. Two helicopters are housed in the hangar at the stern of the ship, complementing search capabilities and offensive power of the vessel. Those are assumed to be licensed Elatian helicopters, likely modified for compatibility with shipborne systems and datalinks.
 
The electronic equipment of the class consists of a 3D air search radar, a missile control radar, a gunnery radar, a navigational radar, and an electronic warfare suite mounted below the air search radar. Conceived in 1990s, the ships relied primarily on foreign electronic equipment. Additionally, four optronics stations are mounted at the fore mast. The sonar suite consists of the bow array and the towed array; the exact specifications or the place of origin of those are unknown. The communication tower on the hangar carries the signals complex, including several types of datalinks. The capabilities of the combat integration suite are unknown but are assumed to have evolved over time.


As build, ships were equipped with eight 25mm guns in twin manned powered mounts, two at the fore superstructure behind the fire control radar, and two on top of the hangar. Those were later replaced by 3-barrel rotary 25mm guns in remote weapon stations. For the anti-submarine warfare, ships of the class carry two sets of torpedo tubes below the main deck fore of the hangar, and two RBU bomb throwers. When first commissioned, ships of the Project 15471 carried two twin 533mm torpedo tubes with several reloads. Over the mid-life upgrade program those were replaced with quad 324mm torpedo tubes, unified with standard Navy torpedoes.
=== Mid-life upgrade ===
Starting 2020, the Navy initiated a mid-life refit program for ships of the Project 15470, [[Itayana_Navy#Design_designation_system|coded]] '''Project 15472'''. The program serves to addresses the obsolescence of the electronic equipment on the class, dating from the 1980s and 1990s. Ships of the Batch 3 served as a testing ground for various subsystems and equipment.


Two helicopters are housed in the hangar at the stern of the ship, complementing search capabilities and offensive power of the vessel.
Externally, the program includes redesigning the funnels and the mainmast of the superstructure to reduce the {{wp|radar cross section}}. it is known that the original gas turbines were replaced by a modernized set, offering more power output. The artillery of the class remained the same, although the twin 25mm manned stations were replaced by 3-barrel rotary 25mm guns in remote weapon stations. 533mm torpedo tubes were replaced with quad 324mm torpedo tubes; those are compatible with all standard Navy torpedoes, which eliminated the odd 533mm calibre from the arsenal. Additionally, both RBU bomb throwers were replaced with 24-barrel launchers.


The electronic equipment of the class consists of a 3D air search radar, a missile control radar, a gunnery radar, a navigational radar, and an electronic warfare suite mounted below the air search radar. Conceived in 1990s, the ships relied primarily on foreign electronic equipment. The mid-life upgrade replaced most of the sensors on those of domestic origins. Additionally, four optronics stations are mounted at the fore mast. The sonar suite consists of the bow array and the towed array; the exact specifications or the place of origin of those are unknown. The communication tower on the hangar carries the signals complex, including several types of datalinks. The capabilities of the combat integration suite are unknown but are assumed to have evolved over time.
The most important change of the MLU compared to the original design is the complete overhaul of electronics, sensors and support systems. The radar suite was replaced with new radars, and while its overall architecture remained the same, the new radars are of domestic origins. It is known that the change have allowed ships to fire long-range surface-to-air missiles, as was repeatedly observed since 2014. However, no dedicated surface targeting radar was added to complement naval strike capabilities of the class, unlike with the successive projects.


==Notable deployments==
==Notable deployments==
As the main surface combatant of the [[Itayana Navy|Autocracy Navy]], Project 15470 frigates have been used to represent the Solar Autocracy whenever and wherever needed, either by themselves or escorting the few capital ships of the Navy. Their first deployments were happened in August 2005, shortly after the first four units were commissioned from Redisan yards. The ships were frequently seen on joint exercises with Zacapine, Redisan, Rezese and Elatian navies, as well as representing the Autocracy as far as [[Velikoslavia]], [[M'Biruna]] and [[Elatia]].
As the main surface combatant of the [[Itayana Navy|Autocracy Navy]], Project 15470 frigates have been used to represent the Solar Autocracy whenever and wherever needed, either by themselves or escorting the few capital ships of the Navy. Their first deployments were happened in June 2001, shortly after the first batch was completed on Redisan yards. The ships have been frequently seen on joint exercises with Zacapine, Redisan, Rezese and Elatian navies, as well as representing the Autocracy as far as [[Velikoslavia]], [[M'Biruna]] and [[Elatia]].


The success of the design prompted the Solar Temple of Yanbango to massively expand their [[Star-2 Naval Program]], contributing to the expansion of the shipbuilding plants No.75 and No.87. By the time of the [[Central Karana War]], 16 frigates of the Project 15471 were commissioned, another two were finishing sea trials, 14 were on varying stages of construction and 24 more were scheduled. Their role in the land war was limited to screening territorial waters of the Autocracy, although ''#31'', forced to stay behind behind docked due to the engine trouble, was towed to Karana River where it scored two confirmed aircraft kills.  
The success of the design prompted the [[Solar Temple of Yanbango]] to massively expand their [[Star-2 Naval Program]], contributing to the expansion of the shipbuilding plants No.75 and No.87. By the time of the [[Central Karana War]], 16 frigates of the first two batches were commissioned, 8 more of the Batch 3 were on varying stages of construction and 24 more were ordered. Their role in the land war was limited to screening territorial waters and the economic zone of the Autocracy, although ''Yanaho'' was forced to stay behind due to the engine trouble. The ship was towed to Karana River where it scored two confirmed aircraft kills during the aerial phase of the war.


The 2009-2011 economic downturn impacted the shipbuilding programs of the Autocracy negatively; nevertheless, it appears that all effort was made to finish the frigates already laid down, regardless of the stage of construction.
The 2009-2011 economic downturn impacted the shipbuilding programs of the Autocracy negatively; nevertheless, it appears that all effort was made to finish the frigates already laid down, regardless of the stage of construction. However, no further ships of the class were laid down, and it is known that the Admiralty Staff reordered those ships as more modern [[Project 15490 frigate|Project 15490]] frigates rather than outright canceling the orders. The final ships of Project 15470 were commissioned in 2014 and were first officially sighted on manoeuvres with the [[Redisan Navy]] in 2015.


Starting 2020, the Navy initiated a mid-life refit program for the first batch, including complete overhaul of electronics, sensors and support systems, as well as efforts to reduce the {{wp|radar cross section}}. It is expected that modified frigates will remain the mainstay of the Navy until 2040s, by which point they will be supplemented by newer designs.
It is expected that frigates of the class will remain the mainstay of the Navy until 2030s, by which point they will be supplemented by sufficient number of newer and more advanced designs.


==Ships in class==
==Ships in class==
Line 130: Line 138:
!! class="unsortable" width="20%" | Status
!! class="unsortable" width="20%" | Status
|-
|-
| <name> || Rainfall || some Redisan yard || 07.05.1998 || 25.10.1999 || 27.12.2000 || Active
| <name> || Rainfall || Gallentica Naval Works || 07.05.1998 || 25.10.1999 || 30.10.2000 || Active
|-
|-
| <name> || <Translation> Rain || some Redisan yard || 09.05.1998 || 27.10.1999 || 27.12.2000 || Active
| <name> || <Translation> Rain || Gallentica Naval Works || 09.05.1998 || 27.10.1999 || 27.12.2000 || Active
|-
|-
| <name> || <Translation> Rain || some Redisan yard || 11.05.1998 || 29.10.1999 || 27.12.2000 || Active
| <name> || <Translation> Rain || Gallentica Naval Works || 11.05.1998 || 29.10.1999 || 27.12.2000 || Active
|-
|-
| <name> || <Translation> Rain || some Redisan yard || 13.05.1998 || 31.10.1999 || 27.12.2000 || Active
| <name> || <Translation> Rain || Gallentica Naval Works || 13.05.1998 || 31.10.1999 || 27.12.2000 || Active
|-
|-
| <name> || <Translation> Rain || some Redisan yard || 28.10.1999 || 15.03.2000 || 15.05.2001 || Active
| <name> || <Translation> Rain || Gallentica Naval Works || 28.10.1999 || 15.03.2000 || 15.05.2001 || Active
|-
|-
| <name> || <Translation> Rain || some Redisan yard || 30.10.1999 || 17.03.2000 || 15.05.2001 || Active
| <name> || <Translation> Rain || Gallentica Naval Works || 30.10.1999 || 17.03.2000 || 15.05.2001 || Active
|-
|-
| <name> || <Translation> Rain || some Redisan yard || 01.11.1999 || 19.03.2000 || 15.05.2001 || Active
| <name> || <Translation> Rain || Gallentica Naval Works || 01.11.1999 || 19.03.2000 || 15.05.2001 || Active
|-
|-
| <name> || <Translation> Rain || some Redisan yard || 03.11.1999 || 21.03.2000 || 15.05.2001 || Active
| <name> || <Translation> Rain || Gallentica Naval Works || 03.11.1999 || 21.03.2000 || 15.05.2001 || Active
|}
|}


Line 158: Line 166:
!! class="unsortable" width="20%" | Status
!! class="unsortable" width="20%" | Status
|-
|-
| <name> || <Translation> Cloud || Shipbuilding Plant No.87 || 05.04.2002 || 15.09.2004 || 25.03.2007 || Active
| <name> || White Cloud || Shipbuilding Plant No.87 || 05.04.2002 || 15.09.2004 || 25.03.2007 || Active
|-
|-
| <name> || <Translation> Cloud || Shipbuilding Plant No.87 || 06.04.2002 || 17.09.2004 || 27.04.2007 || Active
| ''Yanaho'' || Red Cloud || Shipbuilding Plant No.87 || 06.04.2002 || 17.09.2004 || 27.04.2007 || Active
|-
|-
| <name> || <Translation> Cloud || Shipbuilding Plant No.87 || 19.01.2002 || 25.12.2004 || 03.07.2007 || Active
| <name> || Blue Cloud || Shipbuilding Plant No.87 || 19.01.2002 || 25.12.2004 || 03.07.2007 || Active
|-
|-
| <name> || <Translation> Cloud || Shipbuilding Plant No.87 || 18.02.2002 || 11.06.2005 || 21.09.2008 || Active
| <name> || Morning Cloud|| Shipbuilding Plant No.87 || 18.02.2002 || 11.06.2005 || 21.09.2008 || Active
|-
|-
| <name> || <Translation> Cloud || Shipbuilding Plant No.75 || 23.02.2002 || 03.08.2004 || 13.05.2007 || Active
| <name> || Evening Cloud || Shipbuilding Plant No.75 || 23.02.2002 || 03.08.2004 || 13.05.2007 || Active
|-
|-
| <name> || <Translation> Cloud || Shipbuilding Plant No.75 || 26.03.2002 || 26.11.2005 || 04.06.2007 || Active
| <name> || Cirrus Cloud || Shipbuilding Plant No.75 || 26.03.2002 || 26.11.2005 || 04.06.2007 || Active
|-
|-
| <name> || <Translation> Cloud || Shipbuilding Plant No.75 || 22.04.2002 || 30.01.2006 || 10.08.2009 || Active
| <name> || Cumulus Cloud || Shipbuilding Plant No.75 || 22.04.2002 || 30.01.2006 || 10.08.2008 || Active
|-
|-
| <name> || <Translation> Cloud || Shipbuilding Plant No.75 || 12.05.2002 || 30.01.2006 || 12.10.2009 || Active
| <name> || Wind-stirred Cloud || Shipbuilding Plant No.75 || 12.05.2002 || 30.01.2006 || 12.10.2008 || Active
|}
|}


{|class="wikitable"
{|class="wikitable"
|+ style="padding-bottom:1em;" | Project 15472, Batch 1
|+ style="padding-bottom:1em;" | Project 15471, Batch 3
|- class="backgroundcolor5"  
|- class="backgroundcolor5"  
!  class="unsortable" width="15%" | Name  
!  class="unsortable" width="15%" | Name  
Line 186: Line 194:
!! class="unsortable" width="20%" | Status
!! class="unsortable" width="20%" | Status
|-
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 23.03.2007 || 30.03.2012 || 22.09.2015 || Active
| <name> || Mountain Cloud || Shipbuilding Plant No.87 || 01.08.2008 || 15.09.2011 || 25.03.2014 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 24.04.2007 || 30.04.2012 || 16.10.2015 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 10.02.2008 || 14.03.2014 || 01.02.2016 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 12.02.2008 || 02.03.2014 || 14.05.2016 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 03.03.2008 || 01.04.2014 || 10.07.2016 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 15.03.2008 || 16.04.2014 || 29.03.2017 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 27.12.2008 || 23.01.2015 || 13.06.2017 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 05.01.2009 || 27.01.2015 || 17.12.2017 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.75 || 04.07.2007 || 23.10.2012 || 23.07.2015 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.75 || 26.12.2007 || 18.12.2012 || 18.10.2015 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.75 || 10.08.2008 || 25.01.2013 || 11.12.2015 || Active
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 16.08.2008 || 30.04.2013 || 01.08.2016 || Active
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 18.11.2008 || 25.07.2013 || 11.09.2016 || Active
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 23.11.2008 || 16.12.2013 || 24.10.2016 || Active
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 25.12.2008 || 15.01.2014 || 31.11.2016 || Active
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 30.12.2008 || 17.01.2014 || 12.01.2017 || Active
|-
|}
 
{|class="wikitable"
|+ style="padding-bottom:1em;" | Project 15472, Batch 1
|- class="backgroundcolor5"
!  class="unsortable" width="15%" | Name
!! width="15%" | Translation
!! width="20%" | Shipyard
!! width="10%" | Laid down
!! width="10%" | Launched
!! width="10%" | Commissioned
!! class="unsortable" width="20%" | Status
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 23.03.2007 || 30.03.2012 || 22.09.2015 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 24.04.2007 || 30.04.2012 || 16.10.2015 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 10.02.2008 || 14.03.2014 || 01.02.2016 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 12.02.2008 || 02.03.2014 || 14.05.2016 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 03.03.2008 || 01.04.2014 || 10.07.2016 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 15.03.2008 || 16.04.2014 || 29.03.2017 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 27.12.2008 || 23.01.2015 || 13.06.2017 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.87 || 05.01.2009 || 27.01.2015 || 17.12.2017 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.75 || 04.07.2007 || 23.10.2012 || 23.07.2015 || Active
|-
| <name> || <translation> || Shipbuilding Plant No.75 || 26.12.2007 || 18.12.2012 || 18.10.2015 || Active
|-
|-
| <name> || <translation> || Shipbuilding Plant No.75 || 10.08.2008 || 25.01.2013 || 11.12.2015 || Active
| <name> || Summit Cloud || Shipbuilding Plant No.87 || 08.08.2008 || 20.09.2011 || 27.04.2014 || Active
|-
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 16.08.2008 || 30.04.2013 || 01.08.2016 || Active
| <name> || Celestial Cloud || Shipbuilding Plant No.87 || 15.08.2008 || 25.09.2011 || 03.07.2014 || Active
|-
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 18.11.2008 || 25.07.2013 || 11.09.2016 || Active
| <name> || Massed Clouds || Shipbuilding Plant No.87 || 22.08.2008 || 11.10.2011 || 21.09.2014 || Active
|-
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 23.11.2008 || 16.12.2013 || 24.10.2016 || Active
| <name> || Rain || Shipbuilding Plant No.75 || 08.09.2008 || 03.09.2011 || 13.05.2014 || Active
|-
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 25.12.2008 || 15.01.2014 || 31.11.2016 || Active
| <name> || Rain || Shipbuilding Plant No.75 || 15.09.2008 || 26.09.2011 || 04.06.2014 || Active
|-
|-
| <name> || <Translation> || Shipbuilding Plant No.75 || 30.12.2008 || 17.01.2014 || 12.01.2017 || Active
| <name> || Rain || Shipbuilding Plant No.75 || 22.09.2008 || 10.10.2011 || 10.08.2014 || Active
|-
|-
| <name> || Rain || Shipbuilding Plant No.75 || 30.09.2008 || 24.10.2011 || 12.10.2014 || Active
|}
|}


[[Category: Itayana Navy]]
[[Category: Itayana Navy]]

Latest revision as of 18:34, 1 April 2024

15471.png
Yanaho, c.2010
Class overview
Name: Project 15470 frigate
Operators: Itayana Navy
Preceded by: Project 10705 frigate
Succeeded by: Project 15490 frigate
In service: 2000-present
Completed: 24
Active: 24
General characteristics
Type: Frigate
Displacement: 4,900 tonnes
Length: 138.1m
Beam: 14.6m
Draught: 8.6m
Propulsion:
  • 2-shaft COGAG system:
  • As built: 2 x cruise (10,000 kW each) + 2 x boost (27,500 kW each) gas turbines
  • Post-MLU: 2 x cruise (14,000 kW each) + 2 x boost (32,000 kW each) gas turbines
Speed: +32kn
Range: 4,000 nautical miles at cruise turbines
Boats & landing
craft carried:
  • 2 Type 601 cutters or
  • 4-6 RIB boats (post-MLU)
Complement: 193
Sensors and
processing systems:
  • As built:
    • Fregato-M3 3D air search radar
    • Klingo-95 SAM guidance radar
    • Leono-145 fire control radar
  • Post-MLU:
    • Type 2132 3D air search radar
    • Type 3100 SAM guidance / gunnery radar
    • Type 2677 gunnery radar
  • Navigation radar
  • Optronic suite
  • Sonar suite:
    • Hull-mounted sonar
    • Towed array sonar
Armament:
  • As built:
    • 2 missile mounts (8 missiles)
    • 36 SAM VLS cells
    • 1x1 130mm gun
    • 4x1 76mm guns
    • 4x2 25mm automatic cannons
    • 2x2 533mm torpedo tubes
    • 2 RBU-6000 bomb throwers
  • Post-MLU:
    • 2 missile mounts (8 missiles)
    • 36 SAM VLS cells
    • 1x1 130mm gun
    • 4x1 76mm guns
    • 4 25mm rotary automatic cannons
    • 2x4 324mm torpedo tubes
    • 2 24-barrel multi-purpose launchers
Aircraft carried: 2 helicopters

The Project 15470 also known as the Rainfall-class frigate is a class of frigates in service with the Unifying Navy. Conceived as the primary unit of the Navy in 1990s, the ship was designed with extensive assistance of Redisan and Elatian shipbuilders. The lead ship was commissioned in 2000 and the initial plans to build eight vessels eventually expanded, making the family the mainstay of the Unifying Navy and its most numerous surface combatant through 2000s and 2010s.

General characteristics

The layout of the Project 15470 vessels is characterized by extensive superstructure, several antenna masts, two funnels and a wide helicopter hangar. The hull is 138.1 m long overall, with a beam of 14.6 meters and the draught of 8.6 meters, including a 4-meter bulb housing the bow sonar array. The hull shape was reportedly modeled using computer simulations to optimize hydrodynamic performance.

Ships of the class are powered by the COGAG propulsion system, with two cruise gas turbines and two boost gas turbines powering two reversible screws. The top speed is estimated to be in excess of 32 knots, with reports indicating as high as 36 knots on trials. The operational range of 4,000 nautical miles at economical speed is typical for contemporary frigates. Electrical power is provided by a set of steam generators using heat from cruise turbines, as well as backup diesel generators. The ships carry two 12-meter boats, standard minimum for the blue-water vessels of the Autocracy Navy; vessels after the mid-life upgrade have been known to use 7-meter RIB boats on several occasions. Each ship has a crew of 193, with 11 officers and 37 warrant officers.

The primary offensive weapon of the class is comprised of the two missile mounts amidships that allow variety of missile container launchers to be fitted. Initial ships used exclusively the imported Moskit anti-ship missiles, but at some point around 2008 further launchers were developed for other types of missiles, apparently including the modified Moskit derivative and the Kalibr cruise missile family. For anti-air defence, the ships carry 36 vertical-launch cells in three groups of 12 for various medium and short-range surface-to-air missiles. The exact types of SAMs in service of the Solar Autocracy are unknown, but are likely derived from Rezese, Redisan and Elatian systems.

Contrary to the contemporary naval design trends, ships of the Project 15470 carry an extensive artillery suite. A single dual-purpose 130mm gun is installed fore of the VLS cells, coupled with its own fire control radar and optical targeting module. It is known that the gun itself is licensed from Elatia, and is capable of firing 60 rounds a minute, but not much information is available on its targeting equipment. For close-range air defence, four 76mm guns of the Rezese origin are installed in pairs midships, fore of the missile launchers; those are capable of 120 rounds per minute.

As build, ships were equipped with eight 25mm guns in twin manned powered mounts, two at the fore superstructure behind the fire control radar, and two on top of the hangar. For the anti-submarine warfare, ships of the class carry two twin 533mm torpedo tubes below the main deck fore of the hangar, and two RBU bomb throwers. Two helicopters are housed in the hangar at the stern of the ship, complementing search capabilities and offensive power of the vessel. Those are assumed to be licensed Elatian helicopters, likely modified for compatibility with shipborne systems and datalinks.

The electronic equipment of the class consists of a 3D air search radar, a missile control radar, a gunnery radar, a navigational radar, and an electronic warfare suite mounted below the air search radar. Conceived in 1990s, the ships relied primarily on foreign electronic equipment. Additionally, four optronics stations are mounted at the fore mast. The sonar suite consists of the bow array and the towed array; the exact specifications or the place of origin of those are unknown. The communication tower on the hangar carries the signals complex, including several types of datalinks. The capabilities of the combat integration suite are unknown but are assumed to have evolved over time.

Mid-life upgrade

Starting 2020, the Navy initiated a mid-life refit program for ships of the Project 15470, coded Project 15472. The program serves to addresses the obsolescence of the electronic equipment on the class, dating from the 1980s and 1990s. Ships of the Batch 3 served as a testing ground for various subsystems and equipment.

Externally, the program includes redesigning the funnels and the mainmast of the superstructure to reduce the radar cross section. it is known that the original gas turbines were replaced by a modernized set, offering more power output. The artillery of the class remained the same, although the twin 25mm manned stations were replaced by 3-barrel rotary 25mm guns in remote weapon stations. 533mm torpedo tubes were replaced with quad 324mm torpedo tubes; those are compatible with all standard Navy torpedoes, which eliminated the odd 533mm calibre from the arsenal. Additionally, both RBU bomb throwers were replaced with 24-barrel launchers.

The most important change of the MLU compared to the original design is the complete overhaul of electronics, sensors and support systems. The radar suite was replaced with new radars, and while its overall architecture remained the same, the new radars are of domestic origins. It is known that the change have allowed ships to fire long-range surface-to-air missiles, as was repeatedly observed since 2014. However, no dedicated surface targeting radar was added to complement naval strike capabilities of the class, unlike with the successive projects.

Notable deployments

As the main surface combatant of the Autocracy Navy, Project 15470 frigates have been used to represent the Solar Autocracy whenever and wherever needed, either by themselves or escorting the few capital ships of the Navy. Their first deployments were happened in June 2001, shortly after the first batch was completed on Redisan yards. The ships have been frequently seen on joint exercises with Zacapine, Redisan, Rezese and Elatian navies, as well as representing the Autocracy as far as Velikoslavia, M'Biruna and Elatia.

The success of the design prompted the Solar Temple of Yanbango to massively expand their Star-2 Naval Program, contributing to the expansion of the shipbuilding plants No.75 and No.87. By the time of the Central Karana War, 16 frigates of the first two batches were commissioned, 8 more of the Batch 3 were on varying stages of construction and 24 more were ordered. Their role in the land war was limited to screening territorial waters and the economic zone of the Autocracy, although Yanaho was forced to stay behind due to the engine trouble. The ship was towed to Karana River where it scored two confirmed aircraft kills during the aerial phase of the war.

The 2009-2011 economic downturn impacted the shipbuilding programs of the Autocracy negatively; nevertheless, it appears that all effort was made to finish the frigates already laid down, regardless of the stage of construction. However, no further ships of the class were laid down, and it is known that the Admiralty Staff reordered those ships as more modern Project 15490 frigates rather than outright canceling the orders. The final ships of Project 15470 were commissioned in 2014 and were first officially sighted on manoeuvres with the Redisan Navy in 2015.

It is expected that frigates of the class will remain the mainstay of the Navy until 2030s, by which point they will be supplemented by sufficient number of newer and more advanced designs.

Ships in class

Project 15471, Batch 1
Name Translation Shipyard Laid down Launched Commissioned Status
<name> Rainfall Gallentica Naval Works 07.05.1998 25.10.1999 30.10.2000 Active
<name> <Translation> Rain Gallentica Naval Works 09.05.1998 27.10.1999 27.12.2000 Active
<name> <Translation> Rain Gallentica Naval Works 11.05.1998 29.10.1999 27.12.2000 Active
<name> <Translation> Rain Gallentica Naval Works 13.05.1998 31.10.1999 27.12.2000 Active
<name> <Translation> Rain Gallentica Naval Works 28.10.1999 15.03.2000 15.05.2001 Active
<name> <Translation> Rain Gallentica Naval Works 30.10.1999 17.03.2000 15.05.2001 Active
<name> <Translation> Rain Gallentica Naval Works 01.11.1999 19.03.2000 15.05.2001 Active
<name> <Translation> Rain Gallentica Naval Works 03.11.1999 21.03.2000 15.05.2001 Active
Project 15471, Batch 2
Name Translation Shipyard Laid down Launched Commissioned Status
<name> White Cloud Shipbuilding Plant No.87 05.04.2002 15.09.2004 25.03.2007 Active
Yanaho Red Cloud Shipbuilding Plant No.87 06.04.2002 17.09.2004 27.04.2007 Active
<name> Blue Cloud Shipbuilding Plant No.87 19.01.2002 25.12.2004 03.07.2007 Active
<name> Morning Cloud Shipbuilding Plant No.87 18.02.2002 11.06.2005 21.09.2008 Active
<name> Evening Cloud Shipbuilding Plant No.75 23.02.2002 03.08.2004 13.05.2007 Active
<name> Cirrus Cloud Shipbuilding Plant No.75 26.03.2002 26.11.2005 04.06.2007 Active
<name> Cumulus Cloud Shipbuilding Plant No.75 22.04.2002 30.01.2006 10.08.2008 Active
<name> Wind-stirred Cloud Shipbuilding Plant No.75 12.05.2002 30.01.2006 12.10.2008 Active
Project 15471, Batch 3
Name Translation Shipyard Laid down Launched Commissioned Status
<name> Mountain Cloud Shipbuilding Plant No.87 01.08.2008 15.09.2011 25.03.2014 Active
<name> Summit Cloud Shipbuilding Plant No.87 08.08.2008 20.09.2011 27.04.2014 Active
<name> Celestial Cloud Shipbuilding Plant No.87 15.08.2008 25.09.2011 03.07.2014 Active
<name> Massed Clouds Shipbuilding Plant No.87 22.08.2008 11.10.2011 21.09.2014 Active
<name> Rain Shipbuilding Plant No.75 08.09.2008 03.09.2011 13.05.2014 Active
<name> Rain Shipbuilding Plant No.75 15.09.2008 26.09.2011 04.06.2014 Active
<name> Rain Shipbuilding Plant No.75 22.09.2008 10.10.2011 10.08.2014 Active
<name> Rain Shipbuilding Plant No.75 30.09.2008 24.10.2011 12.10.2014 Active
Retrieved from "https://iiwiki.us/mediawiki/index.php?title=Project_15470_frigate&oldid=787176"