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Als ® Class 90 Multi Purpose Corvette

Main characteristics

Length Overall
96.20 m
Length DWL
87.60 m
Breadth max.
14.60 m
Depth to first Deck
8.30 m
Draught DWL
3.71
Endurance
21 Days
Range at 15 knots
4,250 nm
Displacement
2,171 t
Speed
27.3 knots
Crew
112 persons
Accomm. for up to
129 persons
Special Forces
16
view of 90 Multi Purpose Corvette

Platform Design

State of the art hull lines based on stealth shape requirements. For ship’s resistance reduction a bulbous bow is incorporated. Particular attention is paid to the design of the aft end lines to achieve smooth inflow to the propellers, to reduce propeller induced vibration and to optimize propulsive efficiency.

Material construction

Main hull: High tensile steel
Superstructure : Steel or Aluminum

Used standards

Germanischer Lloyd Rules for Classification and Construction.

For cost reduction commercial standards throughout, except in the areas where naval standards are considered necessary for safety, survivability and operability reasons (shock requirements, NBC Citadel, etc.) can also be used.

Signatures

Optimized radar signature by using the shaped hull form (Stealth design).

For reduction of the Infra-red (IR) signature an injection system for cooling of the exhaust gases of the propulsion engines and a spraying system for pre-wetting of the outside areas in case of NBC condition are provided.

Reduced acoustic signature by flexible couplings and resilient mountings.

Machinery

Engines Power
23.68 MW
Propellers
CPP propellers
Electrical Plan
3 x 1,000 kW
  • Integrated monitoring and control system (IMCS)
  • Τwo balanced rudders For improved maneuverability.
  • One pair of non - retractable fin stabilizers for comfortable and safe sea keeping characteristics as an option.
  • 2 x 6.48 m military RIBs
  • 1 x 350 kW bow thruster

Weapons

Main gun
1 x 76/62 SR
Secondary guns
2 x 27 or 30 mm
Asymmetric guns
2 x 12.7 mm
CIWS (Aft Effector)
1 x PDMS RAM
Surfaces Missiles
2 x 4 Harpoon + 30 Hellfire missiles (option)
Vertical launchers
1 up to 3 x Mk.41 vertical launchers
Torpedoes
2 x 3 torpedoes
Anti-Torpedoes
2 x WASS C310
EW Counter measures
2 x MASS

Aviation

  • 22.7 m Flight deck
  • Hangar for SIKORSKY S-70B Aegean Sea Hawk 10 t helicopter
  • Helicopter Visual Approach System
  • Storeroom (4 x 2,4 m) for one UAV

Sensors

  • 3D Air & Surface Surveillance Radar
  • Electro – Optical director
  • Fire Control System ( Radar plus E/O)
  • ESM system
  • Laser Warner / Gate keeper
  • 1 x Hull Mounted Sonar
  • 1 x VDS
  • 2 x Navigation radars
  • Tactical Data LINK 11 / LINK 16
  • Integrated Combat Management System (CMS) with up to 14 Multi Function Consoles and Tactical Command Office (TCO)
  • Integrated Communication and Navigation Systems

Mission

The vessel has sufficient displacement and endurance combined with operational capabilities to cope with all assumed types of threats within the specific mission area.

The Corvette is suitable for operations in littoral waters and in open ocean under harsh weather conditions.

The vessel has strong self defence capability against any type of air threats like missiles, aircrafts helicopters, UAVs.

The Corvette is based on a balance of mission payload, capacity, manoeuvrability, signature reduction and survivability to ensure tactical superiority.

Main roles

  • Surveillance
  • Law enforcement,
  • Patrol and Surveillance,
  • Peace support operations,
  • Maritime Search and Rescue,
  • Fishery Protection,
  • Command & Controll

Warfare missions

  • Anti Surface Warfare (ASuW),
  • Anti Submarine Warfare (ASW),
  • Anti Air Warfare (AAW) - capability according to the no of ESSM missiles and the tracking and illumination radar
  • Littoral Warfare / Asymmetric Warfare,
  • Naval Gunfire Support,
  • Electronic Warfare (EW)

General

Optimum design

Optimum relationship between price and performance is achieved with the proper combination of commercial and naval standards.

Flexible platform

A flexible and reliable basic platform in which the desired level of equipment and armament is accommodated in such a way that an optimum relation of accommodated systems and equipment to vessel’s size is achieved.

The flexibility of the design enables the final product to be customized to the Customers’ requirements.