Sparviero-class patrol boat

[TASC 37]

Today I will present Sparviero\ 1-go -class patrol boat

 

Sparviero-class patrol boat
The Sparviero-class are small hydrofoil missile boats capable of traveling at speeds of 46 knots. They were designed for and formerly used by the Italian Navy. The Japanese 1-go class missile boat is an updated version formerly used by the Japan Maritime Self-Defense Force (JMSDF).

With this, we can have it both italy and japan tree in different configuration. Let see what they have.

 

Class overview
Builders:    Fincantieri, Sumitomo
Operators:    Marina Militare
                      Japan Maritime Self-Defense Force
Built:     1973-83 (Italy)
              1991-1995 (Japan)
In commission: 1974-2002(Italy), 1993-2010 (Japan)

 

Italy
The Sparviero class fast attack hydrofoil was designed in Italy by the Alinavi society, a consortium of the American company Boeing, the Italian government's naval research branch, and Carlo Rodriguez, a Messina-based builder of commercial hydrofoils, based on Boeing's Tucumcari for the US Navy. A prototype, named Sparviero was ordered in 1970 for the Italian Navy, Sparviero was laid down by Alinavi in La Spezia in April 1971, was launched on 9 May 1973 and finally commissioned into Italian navy service on 15 July 1974.

The design used the Boeing Jetfoil system, with one hydrofoil forward and two aft, which folded out of the water when cruising. The ship was propelled at high speeds by a Rolls-Royce Proteus gas turbine driving a water jet, while a diesel engine driving a retractable propeller powered the ship at low speeds. The hull and superstructure were constructed entirely of aluminium. As the design was intended for short-range, high speed operations, no sleeping accommodation was fitted. Armament consisted of two Otomat anti-ship missiles aft and a single Oto Melara 76 mm rapid-fire gun forward.

It was planned in 1974–1975 to order four more Sparviero class hydrofoils, to be supplemented by at least two larger Pegasus class hydrofoils, but plans for a NATO-wide standardisation on the Pegasus class were abandoned. When orders were finally placed in 1977, they were for six more Sparvieros (giving seven in total) and no Pegasus class boats. The new ships, built by Fincantieri at Muggiano, entered service from 1982 to 1984, and differed from the prototype in having a more advanced installation for the Otomat missiles (using the Teseo control system) and having water injection fitted to the gas turbines.

The class proved to be underpowered, and it was hoped to re-engine them with more powerful (4,768 kW (6,394 bhp)) Alison gas turbines, but these plans were later abandoned. All of the Italian ships have now been decommissioned.

General characteristics
Type:    Fast attack hydrofoil
Displacement:    60.6 tons full load
Length:    22.95 m (75 ft 4 in)
                 24.56 m (80 ft 7 in) (hydrofoils retracted)
Beam:     7.01 m (23 ft 0 in)
Draught: 1.87 m (6 ft 2 in)
                1.45 m (4 ft 9 in) (on foils at speed)
Propulsion:    
CODAG(COmbined Diesel And Gas turbine) 1 × Rolls-Royce Proteus 15 M560 gas turbine driving waterjet, 3,761 kW (5,044 shp)
                                                                        1 × Isotta-Fraschini ID38N6V diesel, 1 propellor, 220 kW (290 bhp)
Speed:    93 km/h (50 kn)
Range:    740 km (400 nmi) at 45 kn (83 km/h)
                1,940 km (1,050 nmi) at 8 knots (15 km/h)
Complement:    8 enlisted plus 2 officers
Sensors and processing systems:    
SMA SPQ 701 navigation radar
AESN SPG-70 fire control radar
Armament:    
1 × Otobreda 76 mm gun
2 × Otomat Anti-ship missiles

 

Japan
The Japan Maritime Self-Defense Force (JMSDF) selected a modified version of the Sparviero class as a replacement for its PT 11 class torpedo boats. A license agreement was signed in 1991 to build up to 12 Sparvieros, with the first two approved in FY90 and both were laid down by Sumitomo in Uraga on 25 March 1991. An order for a third boat was delayed to help pay for Japan's contribution to the Gulf War, with it not being laid down until 1993. A request for a fourth boat under the FY 95 budget was rejected, and plans for further hydrofoils abandoned.

The Japanese chose different armament than used in the Italian boats, with up to four Type 90 Ship-to-Ship Missiles replacing the Otomats and a non-stabilised 20 mm M61 Vulcan rotary cannon replacing the larger Oto Melara gun. The main powerplant is a 3,900 kW (5,200 shp) General Electric LM500 gas turbine.

 

 

 

General characteristics
Type:    Fast attack hydrofoil
Displacement:    60.6 tons full load
Length:    22.95 m (75 ft 4 in)
                 24.56 m (80 ft 7 in) (hydrofoils retracted)
Beam:     7.01 m (23 ft 0 in)
Draught: 1.87 m (6 ft 2 in)
                1.45 m (4 ft 9 in) (on foils at speed)
Propulsion:    
CODAG(COmbined Diesel And Gas turbine) 1 × General Electric LM500 gas turbine driving waterjet, 3,900 kW (5,200 shp)
                                                                        1 × Isotta-Fraschini ID38N6V diesel, 1 propellor, 220 kW (290 bhp) (For this data, I'm not sure is it correct or not because they order same as italy do except main engine. If I can find more data, I will post it later.)
Speed:    93 km/h (50 kn)
Range:    740 km (400 nmi) at 45 kn (83 km/h)
                1,940 km (1,050 nmi) at 8 knots (15 km/h)
Complement:    8 enlisted plus 2 officers
Sensors and processing systems:    
SMA SPQ 701 navigation radar
AESN SPG-70 fire control radar
Armament:    
1 × M61 Vulcan
4 × Type 90 Ship-to-Ship Missiles

 

 

Weapon
OTO Melara 76 mm
The OTO Melara 76 mm gun is a naval artillery piece built and designed by the Italian defence company Oto Melara. It is based on the Oto Melara 76/62C and evolved toward 76/62 SR and 76/62 Strales.

The Oto Melara 76 mm cannon system is compact enough to be installed on relatively small warships, such as corvettes, avisos (a vessel somewhere in size between a corvette and a patrol boat), and patrol boats. The gun's high rate of fire and availability of specialised ammunition make it multirole capable for short-range anti-missile point defence, anti-aircraft, anti-surface, and ground support. Specialised ammunition includes armour-piercing, incendiary, directed fragmentation effects, and a guided round marketed as capable of destroying manoeuvring anti-ship missiles. A stealth cupola is now offered.
Ammunition
-HE standard (all models): weight 6.296 kg, range 16 km, effective 8 km (4 km vs. air targets at 85°)
-MOM: developed by OTO (Multirole OTO Munition)
-PFF: anti-missile projectile, with proximity fuze and tungsten balls embedded in the shell for defined fragmentation effect.
-SAPOM: 6.35 kg (0.46 kg HE), range 16 km (SAPOMER: 20 km) semi-armoured piercing.
-DART: guided projectile for anti-aircraft manoeuvring targets.
Since the 1980s efforts were made for development of guided 76 mm ammunition, but this was not achieved until recently. The first such ammunition was the CCS (Course Corrected Shell), also known as 'CORRETTO'; a joint program of OTO and British Aerospace. Work started in 1985. The projectile had several small rockets in order to deviate the trajectory. Radio commands were sent from the ship FCS. The FCS did not know the exact position of the projectile, only that of the target. This system was too complex and unreliable, so OTO studied another development in order to obtain a real 'guided ammunition'.

The result of this development is a system which was called DAVIDE just for the Italian market and STRALES for export purposes while the fired guided ammunition is called DART(Driven Ammunition Reduced Time of flight).

The DART projectile is similar in many aspects to other hyper-velocity systems, for example the Starstreak SAM missile's multi-dart warhead, but is a guided gun projectile with radio controls and a proximity fuze for low level engagement (up to 2 meters over the sea). DART is fired at 1,200 m/s (3,900 ft/s), can reach 5 km range in only 5 seconds, and can perform up to 40 manoeuvres. The DART projectile is made of two parts: the forward is free to rotate and has two small canard wings for flight control. The aft part has the 2.5 kg warhead (with tungsten cubes and the 3A millimetric wave new fuze), six fixed wings and the radio receivers.

The guidance system is Command Line of Sight (CLOS). It uses a TX antenna installed on gun. The radio-command for them is provided on a broadcast data-link (Ka Band).

The first lot of DART 76mm guided ammunition, produced by OTO Melara, was successfully tested at the end of March, 2014. The firing trials were conducted on board one of the Italian Navy’s ships equipped with Strales 76mm SR and Selex NA25 fire control system. The first firing trials of the DART ammunition bought by Colombia in 2012 were successfully conducted in the Caribbean Sea on August 29 from the 76/62 Strales inner-layer defence system fitted to its modernised FS 1500 Padilla-class frigates.
-VULCANO: 5 kg, guided projectile with a maximum range around 40 km (it is a smaller version of the 127 mm Vulcano).
The more recent development is the VULCANO 76 ammunition system. Basically, it is a scaled down version of the 127–155 mm Vulcano family of extended-range projectiles developed by Oto Melara; guided by Inertial Navigation System and Global Positioning Systems, it is capable of hitting targets twice the distance of normal 76 mm gun ammunition. GPS-IMU guidance and IR or SALT Terminal sensor 

 

 

Specifications
Weight Empty: 7.5 tonnes (17,000 lb)
Barrel length:    62 caliber: 4,724.4 mm (186.00 in)
Crew:    remote controlled
Shell:    76×636mmR
cartridge weight: 12.5 kilograms (28 lb)
shell weight: 6.3 kilograms (14 lb)
propellant weight: 2.35 kilograms (5.2 lb)
Caliber:    76.2 mm (3.00 in)
Elevation:    −15°/+85°
speed: 35°/s (acceleration: 72°/s²)
Traverse:    360°
speed: 60°/s (acceleration: 72°/s²)
Rate of fire :   Compact: 85 rounds/min
                        Super Rapid: 120 rounds/min
Muzzle velocity: 915 m/s (3,000 ft/s)
Maximum firing range:    
HE-PFF 16,000 m 
SAPOMER 20,000 m
76 Vulcano 40,000 m (Future)
Feed system:    Magazine capacity:
80 ready rounds on Compact gun mount.

 

Otomat
The Otomat is a short-range subsonic anti-ship and coastal defence missile developed by the Italian company Oto Melara jointly with Matra and now made by MBDA.
The Otomat is a short-range anti-ship missile capable of reaching around 180 kilometres (110 mi) at an average speed of 1,000–1,100 kilometres per hour (620–680 mph). It is stored and launched in a fiberglass box which weighs 1,610 kilograms (3,550 lb) fully loaded. This container has a rectangular shape to accommodate the fixed wings of the missile and an inclination of 15 degrees. At launch, the boosters propel the missile up to a height of 200 metres (660 ft) before the main engine starts and a descent to 20 m (66 ft) is made. Otomat Mk2 missiles have a data-link for mid-course updates. They are designed to strike their targets in a 180 m (590 ft) dive or in a sea-skimming mode at an altitude of 2 m (6 ft 7 in) with a 210 kg (460 lb) warhead capable piercing up to 80 millimetres (3.1 in) of steel. The warhead is designed to explode inside the ship with the force of the explosion directed to the bottom of the target ship.

Technical data are: 4.46 m (14.6 ft) length, 40 centimetres (16 in) diameter, 1.35 wingspan, 780 kilograms (1,720 lb) launch weight.

The mid-fuselage fuel tank has a capacity of 90 litres (20 imp gal; 24 US gal), behind the fuel tank is the TR-281 ARBIZON III engine, a simple turbo-jet. The twin ROXEL boosters weigh 75 kilograms (165 lb) each, and provide an acceleration of 6 g for four seconds.

The Turboméca TR.281 Arbizon III is a jet engine of 400 kilograms per tonne (900 lb/long ton), around 50% more powerful than the Harpoon's engine, the Willis turbojet that has 272 kg/t (610 lb/long ton). This latter engine is apparently used also on the bigger BGM-109 so this has lower speed (around 800 km/h (500 mph) compared to the aforementioned 1,000). Air intakes are an unusual number, four, all placed forward the wings, at mid-fuselage (as example Harpoon and Tomahawk have only one), contributing to the characteristic, complex shape of this missile.

Power available has made possible to fit in the bulky fuselage a high fuel reserve, heavy warhead and a data-link (Mk 2 model) to receive updates, at least once when in flight to the target.

The flight controls are four foldable steerable main wings, and four tail control winglets. Structure is made of light alloys, mainly aluminium. The Radar active seeker has a range, in the Italian version, of around 8 km (5.0 mi) with a medium-sized target, but usually it is activated at a shorter distance (see typical mission).

The warhead is in the front, behind the radar section and in front of the radio-altimeter and some other electronic systems. The HE warhead is of the semi-armor-piercing type and has a 65 kg (143 lb) Hertol type filler (for comparison, Kormoran missiles have 165 kg (364 lb) warheads, 56 kg (123 lb) is the HE main charge, plus 16 radial small charges to explode well inside the ship after the main explosion, and the armor-piercing capability is around 7–8 cm (2.8–3.1 in)).

In a typical layout, there are 4–8 fiberglass boxes, with the missile inside, held by a rail in the roof. The overall weight is 1,610 kg (3,550 lb).

Data-links are included in the TESEO or ERATO control systems. ERATO has computerized consoles CLIO, while TESEO has MM/OJ-791 consoles, weighing 570 kg (1,260 lb) with 4 kilowatts (5.4 hp) electric power requirement. The Data-link is called the PRT400 system, and the components are the PTR402 designation for missile (as receiver), PRT401 designation for the transmitter (shipborn) or PTR403 (carried by helicopter). Other systems that can be fitted include the PRT404 system for light ships and the PRT405 system for helicopters.

Overall strengths of this missile are long range, speed, sea-skimming capabilities and a powerful warhead.

Weakness are the need for a helicopter for mid-course guidance and a quite difficult uplink in the TESEO system (at least in the original model), big dimensions (affecting radar cross section RCS and IR signature), the lack of complex maneuvres (synchronization of attacks, re-engagement capabilities, ECCM capability not up to current standards and never publicized), and the availability of surface versions only: no submarine and aircraft versions were developed.

This caused problems to the services that acquired these anti-ship missiles: Italian forces use Otomat (ships), Marte (helicopters), Kormoran (Tornados), Harpoons (not confirmed for submarines). Given the necessity to buy other totally different missile systems, many customers simply bought a 'family of missile systems' as in the Harpoon series and the Exocet family with obvious operative and economic advantages.

 

Specifications
Weight: 770 kg (1,698 lb) with booster
Length:    4.46 m (14.6 ft)
Diameter:    400 mm (15.7 in)
Warhead:    210 kg (463 lb)
Detonation mechanism: Impact and proximity
Engine:    Turbojet engine
Operational range: >180 km (97 nmi)
Speed:    310 m/s (690 mph; 1,100 km/h; Mach 0.91)
Guidance system: Inertial guidance, GPS and active radar homing
Launch platform: Surface-launched

 

M61 Vulcan
Same as on M163, but no stabilizer.

 

Type 90 Ship-to-Ship Missile
The Type 90 Ship-to-Ship Missile (90式艦対艦誘導弾, SSM-1B) is a ship-launched anti-ship missile developed by Japan's Mitsubishi Heavy Industries that entered service in 1992. It is a naval version of the truck-launched Type 88 (SSM-1) missile, which in turn was developed from the air-launched Type 80 (ASM-1) missile. The Japan Maritime Self-Defense Force bought 384 of the missiles which it fitted to its Akizuki, Takanami, Hayabusa, and Murasame-class ships. With a range of 150 km (81 nmi), high subsonic speed and 225 kg (496 lb) warhead, the Type 90 is similar to the US's RGM-84 Harpoon missile, and is replacing Harpoon on Japanese ships.

 

 

 

Specifications
Weight: 661 kg (1,457 lb)
Length:    5.08 m (16.7 ft)
Diameter: 350 mm (13.8 in)
Warhead: high explosive
Warhead weight: 225 kg (496 lb)
Engine:    TJM-2 turbojet + 2 solid rockets
Wingspan:    1.2 m (3.9 ft)
Operational range: 150 km (81 nmi)
Flight altitude:    5-6m
Speed:    1,150 km/h (715 mph)
Guidance system:
Inertial guidance and terminal active radar homing
Launch platform:
Akizuki, Takanami, Hayabusa, Murasame -class ships, 1-go.

 

Conclusion
This ship can add both Italy and Japan on their config of each nation. It is good ship for hit and run tactic than head on assault because how fragile of it. For missile, should use mechanic from artillery calling, mark position on map and missile launch sequence will initiate around 10-15 second to launch, then missile will fly into marked position. While anti-ship missile not coming, this ship just a hydrofoil assault ship with gun. Hope this ship is good for Italy and Japan.
 

[Princess_Pinch 5,625]

Open for discussion. 

[Conte_Baracca 4,547]

Both are interesting, that OTO 76mm is a MONSTER, very rapid fire rate and good hitting power.  I could see this as a 3.7 due to its small size and single weapon.

[ALIEN109 1,321]

I wonder if it will make it to regular tech tree. Not hard to implement now as the model is already ingame for Japan

 

Will it get 3.3 BR too ? Well if it is premium it will I guess but if it is in regular tree it might land at 4.0 because balance...

[Milocat 4,850]

I would support this once all factions get anti-ship missiles.  +1.

[Охраняет-Камни 6,650]

I hope we will see it with missiles, unlike PG-02

+1

[_Pixy 196]

+1 please god yes baby, the dream of Naval warfare

[Borotovas 4,500]

+1

[Conte_Baracca 4,547]

We should get this without missiles.  Anti-Ship Missiles do NOT belong in the game any time soon.

[ALIEN109 1,321]

https://warthunder.com/en/news/6690-development-italian-fleet-early-access-packs-en

 

+

https://warthunder.com/en/news/6163-development-the-japanese-fleet-in-war-thunder-pre-orders-for-the-pg-02-and-kiyoshimo-en

Edited May 16, 2020 by ALIEN109

[super_cacti 1,071]

On 11/03/2020 at 14:56, Conte_Baracca said:

We should get this without missiles.  Anti-Ship Missiles do NOT belong in the game any time soon.

 

Last famous words 

[ALIEN109 1,321]

The italian 76mm version should really have been a regular instead of premium

Spoiler

 

Edited May 15, 2020 by ALIEN109

[Conte_Baracca 4,547]

Needs to be archived

[super_cacti 1,071]

On 15/05/2020 at 20:27, Conte_Baracca said:

Needs to be archived

 

They do that when the update is live

[Conte_Baracca 4,547]

22 hours ago, super_cacti said:

 

They do that when the update is live

ahh. cool

[leroyonly 4,310]

On 20/05/2020 at 14:56, Conte_Baracca said:

ahh. cool

And so it was done.

 

As the Sparviero has been added as per update 1.99 Starfighters,

 

Moved to Implemented Suggestions.