Maritime Notes
Maritime Regulations & Survey
Container-Ship Wind Shields: How Can a Larger Bow Shield Reduce Drag?
An evidence-based review of bow wind shields on large container ships, covering aerodynamic principles, wind-tunnel testing, in-service data, shipyard reports, energy-saving potential, and design constraints.
Joint Guidelines for Electronic Certificates
A practical note on IMO's joint guidelines for electronic certificates, connecting flag authorization, electronic signatures, ISM document control, class / RO issuance practice, and PSC verification risks.
On-board Certificates and
Documents (MSC.1/Circ.1646)
A searchable database of certificates and documents under the IMO 2022 circular, with English titles, Chinese translations, purpose summaries, applicability notes, and regulatory references for delivery, PSC, and document checks.
LR Engine FAT and Shipboard Trials Requirements
A practical note on LR-RU-001 Part 5 Ch 2 Section 11 for reciprocating internal combustion engine FAT and shipboard trials, covering test scope, DF/GF engines, electronic control, and practical survey checkpoints.
LR Class Rules for Low-Flashpoint Fuel Ships
A practical note on LR-RU-012 (July 2025), covering the rule position, chapter architecture, IGF Code integration, LFPF notation, fuel-specific appendices, and design-review focus areas.
Ship Tailshaft Survey Procedure Essentials
A practical classification survey note based on LR Survey Procedures Manual tailshaft items, covering Tailshaft / Screwshaft manufacture, installation, periodical survey, NDE, liners, corrosion protection wrapping, repairs, renewals, and reporting records.
Ship Steering Gear Survey Procedure Essentials
A practical note based on LR Survey Procedures Manual steering gear survey items, covering SOLAS II-1/29, LR Rules Pt 5 Ch 19, emergency steering capability, sea trials, and in-service survey checks.
BWTS Safety Survey Guide
A visual guide to LR Rules Pt.5 Ch.25, covering BWTS installation safety review logic, 10 technology categories, 13 rule sections, and practical surveyor checkpoints.
Maritime Cyber Resilience Requirements
A 15-minute guide to IMO, IACS UR E26 and E27, and LR's July 2025 classification rules, covering the regulatory timeline, survey focus, and field application.
LR Advisory | Visual Guide to Maritime Advisory Services
A visual guide to LR Advisory, covering its positioning, four industry challenges, service areas, target users, and practical use cases.
MARPOL Regulatory Framework Summary
A practical guide to the MARPOL 73/78 convention structure, six annexes, certificates, PSC focus areas, and Annex VI update reminders.
SOLAS Regulatory Framework Summary
A practical guide to the SOLAS convention structure, chapter map, retrofit implications, mandatory codes, and submission checklist.
Hazardous Area Explosion Protection
Visual notes on Ex markings, protection types, gas groups, temperature classes, zone classification, responsibilities, verification dossiers, and common field risks.
Fuel for Thought LPG report summary
Visual notes on LPG as an alternative marine fuel, covering fuel properties, safety risks, regulatory framework, bunkering operations, and future low-carbon pathways.
New Construction Project Management Six-Step
A six-step visual guide from project initiation to delivery close-out, covering PM and surveyor responsibilities, key documents, risk signals, and practical checklists.
6S Lean Management from a Marine Surveyor's Perspective
A practical surveyor-focused guide to applying 6S to ship surveys, engine-room rounds, deck operations, maintenance, and onboard safety management.
IMO MSC 111 key notes
Visual briefing on MASS, alternative fuels, IGC/IGF, SDC, NCSR, SSE, cyber security and remote survey, with effective dates and a practical follow-up checklist.
Maritime radiocommunications and GMDSS guide
A practical guide to GMDSS, DSC, EPIRB, SART, AIS and related equipment, covering functions, regulatory logic, survey focus, and common deficiencies.
Fuel for Thought LNG report summary
Visual notes on LNG as marine fuel, covering technology maturity, methane slip, regulations, supply chain, economics, and decarbonisation pathways.
Fuel for Thought Methanol report summary
Visual notes on methanol as marine fuel, covering safety, regulations, supply chain, cost, and technology readiness.
MEPC 83 / MEPC 84 amendment comparison
GFI, CII, DCS, Net-Zero Framework, with charts and briefing notes.
Notes on this page compile the latest maritime survey, regulatory, and technical information—including convention amendments, environmental requirements, survey practice, and meeting highlights—as a continuously updated personal knowledge base.