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Welcome to ABL Group

Longitude is the design and engineering arm of ABL Group - a global and independent consultancy delivering marine, energy, engineering and software solutions to drive safety and sustainability in renewables, maritime and oil & gas sectors. ABL Group operates across 43 countries worldwide.

About ABL Group
ABL Group Companies:

Proper Marine

Longitude's division in Brazil - specialists in naval architecture and offshore engineering.

View Website

ABL

The energy and marine consultants, delivering technical services to support offshore energy and maritime sectors at construction, operations, decommissioning and in marine casualty scenarios.

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AGR

Engineering consultancy, skills resourcing, survey and software provider, specialising in wells, subsurface, and marine operations.

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OWC - An ABL Group Company

OWC

The renewable energy consultants - providing technical advisory, engineering and consulting for the commercial-scale development of renewable energy onshore and offshore.

View Website
Longitude
An ABL Group Company Group Overview
Menu
  • About Us
  • Sectors
    • Oil & Gas
    • Renewables
    • Defence
    • Commercial Maritime
    • Infrastructure
  • Services
    • Column One
      • Marine Operations Engineering
        • Offshore Installation
        • Module Transportation
        • Wind Farm Installation
        • Decommissioning
        • Site Specific Assessment (SSA)
        • Moorings, Umbilicals, Risers & Pipelines
        • Cable Installation
      • Site Investigations
        • Cable & Pipeline Risk
        • Site Characterisation
        • Survey Management
        • Seabed Morphology
        • Metocean Analysis
    • Column Two
      • Marine Design, Upgrade & Conversion
        • OSD-IMT: Vessel Design
        • Floating Production Systems
        • Jack-Up and Floating Rigs
        • Small Craft
        • Ships
        • Maritime Civil Engineering
        • Fixed Structures
        • Geotechnical Design
      • Advanced Analysis & Simulation
        • Computational Fluid Dynamics
        • Advanced Finite Element Analysis
        • Multibody Hydrodynamics
        • Dynamic Simulations
    • Column Three
      • Clean Shipping
        • Ballast Water Systems
        • Exhaust Gas Emissions Management
        • Hybrid Propulsion Systems
  • Our People
  • Our Offices
  • Case Studies
  • News
  • Careers
  • Contact Us
Home / Defence

Case Studies


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Sector

  • Oil & Gas
  • Renewables
  • Defence
  • Commercial Maritime
  • Infrastructure

SERVICES

  • Vessel Design / OSD-IMT
  • Marine Operations Engineering
  • Site Investigations
  • Advanced Analysis & Simulations
  • Marine Design, Upgrade & Conversion
  • Clean Technologies
  • Geotechnical Design
  • Decommissioning
  • Site Specific Assessment (SSA)
  • Moorings, Risers & Pipelines
  • Maritime Civil Engineering
  • Piles, Jackets & Subsea
  • Jack-Up Rigs
  • Cable & Pipeline Risk
  • Seabed Morphology
  • Module Transportation

Sector: Commercial Maritime Oil & Gas Renewables Defence

Services: Vessel Design / OSD-IMT Marine Design, Upgrade & Conversion

Hybrid Standby Safety Vessel OSD-IMT951

Principle Characteristics L.O.A.: 50.70 m L.B.P.: 47.40 m Breadth mld.: 13.00 m Depth: 6.00…


Sector: Defence Commercial Maritime Oil & Gas Renewables

Services: Vessel Design / OSD-IMT Marine Design, Upgrade & Conversion OSD-IMT: Vessel Design

Multi-Purpose Offshore Terminal Tug (MOTT) OSD-IMT7001

Owner: Unithai Offshore Ltd (UTO) Builder: Unithai Shipyard and Engineering Ltd (UTSE). UTO engaged UTSE to develop the design for Chevron Spec. Principle Characteristics L.O.A.: 49.98…


Sector: Defence

Services: Vessel Design / OSD-IMT Marine Design, Upgrade & Conversion OSD-IMT: Vessel Design

OSD-IMT8301 Patrol Vessel

Hypermodern patrol vessel fully equipped to handle protection and defence roles such as: defending territorial seas, deterring aggressive or intrusive acts, maritime surveillance, protecting maritime assets,…


Sector: Defence

Services: Advanced Finite Element Analysis Marine Design, Upgrade & Conversion

Naval Ship Mast Design

Longitude has been engaged for the design of pole masts for naval vessels. Key to the design is the choice of material as well as accurate calculation of the…


Sector: Defence

Services: Marine Design, Upgrade & Conversion

Fast Rescue Craft Davit Installation

Longitude routinely carries out projects to support the build and modification of military ships in use in the UK and overseas, and has been responsible for the design of…


Sector: Defence

Services: Marine Design, Upgrade & Conversion

Military Ship Alteration Design

Longitude is working on a number of projects to support the Alteration and Amendment (A+A) of military ships in use in the UK and overseas. Examples of the projects…


Sector: Defence

Services: Moorings, Risers & Pipelines

Military Mooring Equipment

Longitude has ongoing relationships in place to support the Alteration and Amendment (A+A) of military ships. Within this framework Longitude has undertaken a review of the mooring arrangements on board…


Sector: Defence

Services: Marine Operations Engineering

HAZID and Safety Case Reports

Longitude was tasked with writing the Safety Case Report for two former seagoing mine hunting vessels that have been repurposed to provide cadet sea training. Longitude organised, planned, facilitated and…


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