Introduction to Ship Systems
Learn the fundamentals of modern ship systems — integrated bridge systems, ECDIS, engine automation, onboard networks, CBS, and IACS E26-compliant architectures.
Ship Systems covers the full technology stack of modern commercial vessels — from integrated bridge systems and ECDIS to engine automation, cargo management, CBS (computer-based systems), and onboard IT/OT networks. Posts are written by maritime engineers and cybersecurity professionals with hands-on shipboard experience.
Last reviewed: August 2026 | Editorial & Verification Policy
Key Ship System Categories
Electronic chart display, conning displays, AIS/ARPA integration, voyage planning. Mandatory under SOLAS. Subject to IACS UR E26 cyber requirements.
Integrated automation systems (IAS), engine monitoring, remote control, shaft power monitoring, fuel consumption optimization, IEC 62443-aligned OT security.
IACS UR E26 defines CBS as any onboard computer-based system affecting safety, propulsion, or cargo. All CBS must be inventoried, assessed, and protected under the cyber resilience plan.
Ship LAN/VLAN design, OT network segmentation, firewall architecture per IACS UR E26, NMEA 0183/2000 data buses, satellite connectivity (VSAT, 5G).
Fire detection, public address, general alarm, fixed gas/fire suppression systems, and GMDSS communications — all within IACS E26 cyber scope for newbuildings.
Cargo control and monitoring systems, ballast water management (BWMS per IMO D-2), loading computer systems, and tank gauging automation.
Frequently Asked Questions — Ship Systems
What does IACS UR E26 require for ship systems?
IACS UR E26 (effective 1 July 2024) requires all newbuilding contracts to include cyber resilience measures across shipboard systems. This covers asset inventory and classification, network segmentation, security zones and conduits, access control, software patch management, and security incident response procedures.
What is a CBS (Computer-Based System) in maritime?
CBS is the IACS UR E26 term for any onboard system using computer hardware and software — navigation displays, engine management systems, ballast control, cargo systems, and more. All CBS must be inventoried, risk-assessed, and protected as part of the vessel's cyber resilience plan.
What is NMEA 2000 and why does it matter for ship cybersecurity?
NMEA 2000 (IEC 61162-3) is the CAN-bus based navigation data network used by bridge instruments. Without proper network segmentation, a compromised NMEA 2000 node could inject false navigation data. IACS UR E26 specifically addresses protection of navigation-critical data buses.
Ship Systems — Vessel Technology & Cybersecurity
Ship Systems covers the design, integration, and cybersecurity of onboard vessel systems under IACS UR E26/E27 requirements. Articles address navigation systems (ECDIS, AIS, GPS, radar), propulsion and engine controls, cargo management systems, integrated bridge systems, ship communication networks (GMDSS, VSAT, Starlink), loading computers, and engineering information flows during ship construction. Special focus is given to how each system class must be identified, documented, and protected in compliance with current class society rules. Whether you are a shipowner, classification surveyor, shipyard engineer, or OT security professional, this section provides practical insight into how systems are classified and what security controls apply.
Topics Covered
- IACS UR E26 System Classification
- Navigation Systems — ECDIS, AIS, GPS
- Loading Computer Architecture
- Ship Communication Systems
- Propulsion & Engine Control
- Cargo Management Systems
- Integrated Bridge Systems
- GMDSS & VSAT
- Engineering Documentation
- OT Security for Ship Systems
- Class Survey Requirements
- Cyber Resilience Design
Comments
Post a Comment