L’Adroit is a Gowind Class offshore patrol vessel (OPV), which was designed and built by DCNS for the maritime safety and security (MSS) missions of the French Navy.
The OPV was launched in May 2011. It was constructed between May 2010 and June 2011 at Toulon naval base in France. It was officially christened in June 2011 and sea trials began in July 2011.
In June 2011, DCNS partnered with Austrian company Schiebel for integrating a Camcopter S-100 unmanned air system (UAS) onboard L’Adroit. The UAS completed trials in August 2011.
Camcopter S-100 unmanned air system (UAS)
Schiebel’s CAMCOPTER® S-100 Unmanned Air System (UAS) is a proven capability for military and civilian applications. The Vertical Takeoff and Landing (VTOL) UAS needs no prepared area or supporting launch or recovery equipment. It operates day and night, under adverse weather conditions, with a range out to 200 km, both on land and at sea. The S-100 navigates automatically via pre-programmed GPS waypoints or can be operated directly with a pilot control unit. Missions are planned and controlled via a simple point-and-click graphical user interface. High-definition payload imagery is transmitted to the control station in real time. Using “fly-by-wire” technology controlled by redundant flight computers, the UAV can complete its mission automatically in the most complex of electromagnetic environments. Its carbon fiber and titanium fuselage provides capacity for a wide range of payload / endurance combinations. Source schiebel.net
The maximum and cruise speed of the Camcopter S-100 UAV is 222km per hour and 101km per hour, respectively. It has a maximum endurance of six hours.
The vehicle’s range ceiling is 180km and its service ceiling is 5,486m. The UAV weighs around 100kg and has a maximum take-off weight of 200kg. Source airforce-technology.com
Camcopter S-100 unmanned air system (UAS)
The French Navy took delivery of L’Adroit from DCNS in October 2011. The new ship and its advanced equipment and systems will be tested by the French Navy until 2014.
|L’Adroit||P725||DCNS, Lorient||10/6/2010||18/5/2011||19/3/2012||in service (2018)|
Design of the Gowind Class offshore patrol vessel
Click to enlarge and save the image to view the details: modified photo of L’Adroit, lead ship of Gowind/Kership class offshore patrol vessels. For high resolution image click here. – Image: navalanalyses.blogspot.com
L’Adroit was designed by DCNS under a self-funded programme. The design includes a semi-planing steel monohull. The hull was assembled at the Lorient shipyard of DCNS.
The superstructure of the ship has a pyramidal shape with flat geometric panels. It provides shelter for a 5t helicopter and landing facility for a 10t helicopter. It can carry two rigid-hulled inflatable boats (RHIBs) and also has full provisions for UAV operations.
It can offer covert deployment of fast commando boats within five minutes. The ship is also provided with a helicopter / UAV flight deck.
Poste équipage (© : MER ET MARINE – VINCENT GROIZELEAU) Crew station – Image: meretmarine.comCuisines de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comSas pour l’embarquement de vivres et matériels (© : MER ET MARINE – VINCENT GROIZELEAU) Coursive de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) Locaux réservés aux commandos (© : MER ET MARINE – VINCENT GROIZELEAU) Semi-rigide dans la niche tribord (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.com
Helicopter hanger & Landing pad
Plateforme hélicoptère (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comAbri hélicoptère de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) Hanger – Image: meretmarine.com
NHIndustries NH90: Details
Eurocopter AS565 Panther: Details
L’Adroit has an overall length of 87m, beam of 13m and design draught of 3.3m. The full load displacement of the ship is 1,450t. It can complement crew of 30 and has space for 30 passengers. It has an endurance of three weeks and a range of 8,000 nautical miles at a maximum speed of 21kt.
Boat launching ramps
Boat launching ramps (©: MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comRHIB launch from one of the two stern ramps Photo: Marine Nationale – Image: navalanalyses.blogspot.comZodiac Hurricane 935 RHIB – Image: navalanalyses.blogspot.com
360° panoramic bridge
GROIZELEAU) – Image: meretmarine.comPasserelle de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comPasserelle de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comPasserelle de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comPasserelle de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comLe PC Avia (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.com
The 360° panoramic bridge and the integrated mast give L’Adroit’s crew reliable information acquisition resources. The minimal superstructure of the ship leaves a substantial space available for air operations (helicopters, UAVs) and for launch and recovery of surface assets (RHIBs or USVs). L’Adroit’s missions are managed by the POLARIS® combat system, which supplies essential detailed information on the ship’s environment, acquired by various detectors, deployed sensors and other ships integrated into the surveillance network. The mission system can also include MATRICS®, a maritime surveillance system capable of detecting suspicious course profiles automatically. Source wikiwand.com
Performance of DCNS’ L’Adroit
L’Adroit can be used for maritime safety and security missions, which include counter-piracy, fisheries surveillance and environmental protection. It can also be used for humanitarian aid, drug interdiction, as well as rescue and search operations.
The vessel is mainly used for conducting maritime surveillance and reconnaissance missions and anti-piracy and anti-smuggling operations. It is capable of providing 220 days of at-sea-availability in a year.
Weapon and armaments onboard the French Navy craft
L’Adroit can be fitted with lethal or non-lethal weapons. The ship is equipped with a 20mm gun on the foredeck. It has an outreach of about 2km and can be operated manually. It is also equipped with two 50 cal. machine guns.
20F2 gun 20mm gun/90 cal modele F2 gun
The 20F2 is the navalized version of the GIAT CN-MIT 20 M693 (Canon Mitrailleur 20 mm Modèle 693), formerly the Hispano-Suiza 820. This weapon is also used by the French Army.
The M621 is a low-recoil gun which has been mainly used on helicopters and small aircraft, but a navalized version was developed in the late 1980s. Recoil is minimized by the use of a muzzle brake and a shock-absorbing mount.
|Designation||20 mm/90 GIAT M693 CN-MIT-20F2
20 mm/73 GIAT M621
|Ship Class Used On||France: Florèal, Tripartite minelayers, P400, CDIC and EDIC classes
Belgium: Tripartite minelayers
Indonesia: Tripartite minelayers
Netherlands: Tripartite minelayers
Pakistan: Tripartite minelayers
Saudi Arabia: NAJA 12 class
|Date Of Design||Late 1970s|
|Date In Service||20F2: 1983 (Naval Version)
M621: 1988 (Naval Version)
|Gun Weight||20F2: N/A
M621: 104 lbs. (47 kg)
|Gun Length oa||20F2: N/A
M621: 87 in (2.207 m)
|Bore Length||20F2: about 71 in (1.800 m)
M621: about 57 in (1.460 m)
|Rate Of Fire||20F2: 800 rounds per minute cyclic
M621: 740 rounds per minute cyclic
|Effective||2,200 yards (2,000 m)||1,300 yards (1,200 m)|
|Maximum||10,960 yards (10,020 m)||7,400 yards (6,770 m)|
2 x 50 cal. machine guns
Two 50 cal. M2HB 12.7mm heavy machine guns
Guns raging up to 10km outreach with 76mm remote control range can be fitted to the vessel.
The two side wings of the ship can be equipped with two water guns of 200m outreach each. The wings can also be fitted with small calibre weapons raging between 500m and 1km and long range acoustic devices. The front deck of the ship can host two double surface to surface missile ramps (SSM40).
One of the two water cannons Photo: Christina Mackenzie – Image: navalanalyses.blogspot.com
The ship also features an electronic warfare suite.
The vessel is equipped with Scanter 20 Terma 01 I-Band surface search radar and Sagem EOMS (electro optical multisensor system) NG. It is also equipped with a Sagem SIGMA 40D inertial measurement unit, LinkSrechts Helicopter visual landing aid system and HF/VHF/satellite communications suite. The ship is well equipped with Polaris combat management system.
Scanter 20 Terma 01 I-Band surface search radar
The see-through composite radome houses two Terma 2D surveillance radars, the Scanter 4102 and the Scanter 6002, sharing the same antenna (dual Scanter radar suite). Scanter 4102 is a general medium range surveillance radar while Scanter 6002 is Terma’s most modern X (I)-band 2D solid state radar optimized for improved surface and low airspace situational awareness in all weather conditions (for example very small non-metallic targets in sea states 4-6) and to provide the approach control for the helicopter. These characteristics of Scanter 6002 make it ideal for search-and-rescue (SAR) operations. This conical radar transparent mast structure provides the sensors that are mounted inside a full 360-degree coverage. The upper part of the radome hosts the UAV guidance antenna. The mast supports a FLIR Talon located at the aft side, a navigation radar at the front side, an IFF, a USV guidance antenna, Thales Vigile LW Radar Electronic Support measures (R-ESM) and Thales Altesse Communication Electronic Support Measures (C-ESM). Source navalanalyses.blogspot.com
Vision 360, robustness and ease of maintenance
Its advantage is to offer a panoramic vision without the sensor detection field is masked by another mast, as c ‘Is traditionally the case. For the electrical supply and the information gathered by the equipment located at the top of the structure, small cable trays were integrated into the radome, the proximity with the Scanter antennas making them invisible to the radar. “It’s like putting a finger in front of your nose, you can not see it! “Joked Jacques Le Ven and Denis Quiltu, respectively responsible for the unique mast of the Adroit and responsible for the air surface combat department and unique masters projects at DCNS. “This concept offers many advantages. It provides 360 degree vision, not only for the systems, but also for the crew, which is very interesting in the fight against asymmetric threats. Vertical alignment of the sensors avoids interference, and the rotating antenna under the radome is protected from external stresses, which results in a need for less power to operate. The equipment is also accessible from inside the vessel, which makes maintenance easier. ” Translated by google – Source meretmarine.com
FLIR Talon. Photo: FLIR
FLIR’s Talon compact EO/IR sensor is integrated with the Polaris Combat Management System (CMS) to detect vessels and other objects >10 Km standoff range during EEZ and patrol duties. The the Talon provides up to six payloads: thermal imager, color CCD, low light, laser pointer or laser illuminator, laser rangefinder, and IMU/GPS. Source navalanalyses.blogspot.com
Thales Vigile LW ESM
Thales Vigile LW ESM. Photo: Thales
Sagem EOMS (electro optical multisensor system) NG
On the roof of the bridge there is a second navigation radar and at the base of the mast a Sagem EOMS NG multifunction optronic system. EOMS NG is a multifunction optronic system, unique of its kind. Designed for surface vessels, it combines long-range infrared panoramic search and track (IRST) with electro-optical gun fire control in a single unit. It is a highly effective solution for self-protection against symmetrical and asymmetrical, surface or air threats as it provides automatic detection and tracking, identification, and gun engagement of all surface and air targets, from anti-ship sea-skimming missiles to fast incoming attack craft. It is fully remote controlled from the ship’s Combat Management System (CMS) or via the operator console provided. Source navalanalyses.blogspot.com
Polaris combat management system
The Polaris combat management system, developed by DCNS, integrates GPS, AIS and ADS-B (Automatic Identification System and Automatic Dependent Surveillance – Broadcast), two surveillance radars, two navigation radars, two electro-optical systems and a communication interceptor system. Polaris enables missions such as anti-piracy, convoy protection or surveillance and protection of coastal areas and exclusive economic zones to be carried out. It offers scalable functions which are designed to provide a clear assessment of the tactical situation at sea and interoperability with other units as well as a maritime combat management capability. This mission system integrates the latest technological advances such as the use of drones, long-range surveillance, automatic detection and analysis of suspect behaviour of ships, decision-making aids and secure access to civilian networks and information systems. In its anti-surface warfare version, it also manages the use of guns and short-range self-defence missiles. Source navalanalyses.blogspot.com
Countermeasure technology on the L’Adroit OPV
Countermeasures are provided by Thales Altesse and Vigile LW ESM/COMINT system and Lacroix defence and security sylena decoy system. An integrated mast provides 360° radar coverage for responding to asymmetric threats.
Sylena decoy launcher (lower left) – Image: navalanalyses.blogspot.comCrew members filling the decoy launcher – Image: navalanalyses.blogspot.com
L’Adroit is fitted with two Anglo Belgian Corporation V12 diesel engines rated at 5,600kW each at 1,000rpm. The engines are powered by two shaft lines with controllable pitch propellers of combined diesel and diesel (CODAD) propulsion system.
The propulsion system includes water-jets which offer superior manoeuvrability in shallow waters.
Le compartiment machines de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comLe compartiment machines de L’Adroit (© : MER ET MARINE – VINCENT GROIZELEAU) – Image: meretmarine.comPC machines L’Adroit (©: SEA AND MARINE – VINCENT GROIZELEAU) – Image: meretmarine.com
|Displacement standard, t||1100|
|Displacement full, t||1500|
|Length, m||81.5 pp 87.0 oa|
|Breadth, m||13.0 wl 15.0 deck|
|No of shafts||2|
|Machinery||2 ABC DZC diesels|
|Power, h. p.||8160|
|Max speed, kts||21|
|Fuel, t||diesel oil|
|Armament||1 x 1 – 20/90 F2, 2 x 1 – 12.7/90, 2 x 1 – 7.6/90, helicopter deck, S100 Serval UAV|
|Sensors||2x nav., Scanter 4100, Scanter 6000 radars, EOMS-NG e/o detector, Agile IR e/o detector, Vigile, Altesse ECM suites, Sylena decoy launcher, Polaris-Matrics CCS|
|Complement||32 + 27 passengers|
Characteristic source navypedia.org
Main material source naval-technology.com
Images are from public domain unless otherwise stated
Revised Feb 14, 2017
Updated Oct 06, 2018