Case Report | Three Damen Sigma Class Frigates

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Contractor: Damen Schelde Naval Shipbuilding Owner: Royal Moroccan Navy

SIGMA Frigates FMMM

OUTSIDE 35 C HUMIDITY 90%

22ยบ C

Inside

PROVIDED BY HEINEN & HOPMAN

Heating

Ventilation

Air Conditioning

Refrigeration

DESCRIPTION OF THE PROJECT The three SIGMA-class frigates for the Royal Moroccan Navy have been designed according to Damen Schelde Naval Shipbuilding’s revolutionary Ship Integrated Geometrical Modularity Approach (SIGMA) and are a further development of the SIGMA-corvettes for the Moroccan Navy. The SIGMA approach applies modularity in many areas, which offers the user great flexibility at reduced costs.

The frigates are also known as “FMMM”, which stands for Frégates Multi-Missions Marocaines. The first frigate is longer than numbers two and three, to accommodate a VIP-crew and command facilities.

The vessels are built according to Lloyds Register Class for unrestricted service and are enhanced by proven naval principles.

KEY FEATURES Dimensions (m): Speed (knots): Displacement (t): Main machinery:

Total ships:

Missiles:

Radars: Sonars: Total cooling capacity:

105,11 x 13.02 x 3.60 28 2335 2 x diesel engines at 8910 kW max. power each 3 SSM Exocet / SAM Tetral MW08 3D Rada Kinklip hull-mounted sonar 696 kW

The superior propulsion and sea keeping capabilities make the SIGMA class frigates perfectly suited for operations in Moroccan territorial waters. Basic functions are maritime patrols and surveillance in the Territorial Waters and EEZ. In addition fishery protection, prevention and protection of natural resources, maritime search and rescue as well as the assigned constabulary tasks in law enforcement at sea will belong to the vessels capabilities.

A helicopter deck and hangar for helicopters with a maximum weight of 5 tonnes, with lashing points and refuelling system is provided (landing and take-off up to 9 tonnes). Heli operations can be performed at day and night.

TECHNICAL CHALLENGES (among others) • • • • • •

•

Shock, Vibration and EMC requirements.

Vulnerability requirements for certain systems.

Space constraints for the routing of spiro, ducts and pipes.

Cooling of equipment for combat purposes.

Hangar ventilation.

Engineering a Citadel arrangement to keep the vessel safe from nuclear, biological and chemical attacks, if required in the near future (system not installed).

Every document, drawing had to be in the French language.

ORGANISATIONAL CHALLENGES (among others) Vessel is part of the SIGMA family, which is a programme by DSNS to built vessel from modular parts. This means that during design we have to keep in mind that the solutions chosen will be used in future projects and that we need to use solutions from previous vessels were possible.

Contractor: Damen Schelde Naval Shipbuilding Owner: Royal Moroccan Navy

SCOPE OF SUPPLY Accommodation & Hull • • • • • • • • • • • • • • • • • •

Air intake systems for HVAC Air Handling Units Fan coil units Refrigeration equipment Central heating system Axial fans Air filters Exhaust hoods Duct heating & cooling coils Dampers Sound attenuators Supply & extract ornaments Heaters Provision cooling system HVAC control systems HVAC instrumentation Combat cooling system Gravity cooler

2x 12x 2x 2x

Total capacity 27.000 m3/h Total capacity 700 kW Total capacity 175 kW

2x

Total capacity 3,5 kW

2x 2x

Total capacity 100 kW Total capacity 2.2 kW

SCOPE OF WORK Design & Engineering Project management Custom built production Installation & Implementation Supervision Commissioning

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