John M Walker, CEng,CMarEng,FIMarEST, SAMS AMS Expert Witness
Curriculum Vitae

Contact Information

  • Company: AqualisBraemar LOC Group
  • Phone: 212 587 9300
  • Cell: 917 392 0463
  • Fax: 212 587 9301
  • Website:
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Specialties & Experience

General Specialties:

Maritime and Engineering

Specialty Focus:

Marine,Ship,Shipyard,Ship building,ship repair, maintenance,Yacht,super yacht,engine,Boilers,Turbines,Bunkers,Salvage,Hull,Machinery,Cruise Ship,Maritime,accident investigation, root cause,fuel,lubricants,failure analysis,ISM,SOLAS,USCG,tug,barge,classification society,marine diesel, azipod


Marine Engineering, Warsash Maritime Academy; Chief Engineer (Unlimited Power) Merchant Ships, United Kingdom Maritime & Coastguard Agency; Diploma in Marine Investigation, Lloyds Maritime Academy; Chartered Engineer, Chartered Marine Engineer, Engineering Council, UK

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

Has acted as an expert for shipowners, engine/equipment manufacturers and insurance Underwriters in high profile marine and energy casualties, both in the United States and worldwide. Prominent speaker at marine industry events. Course lecturer marine casualty and salvage. • Experienced hands-on Marine Engineer and Chartered Engineer(CEng), Surveyor and Consultant with 27 years in the marine industry • Project management, fleet maintenance, and new construction; cruise ships, mega-yachts and refrigerated cargo ships • Design and construction planning of marine power plants and propulsion systems • Fellow of the Institute of Marine Engineering, Science and Technology (FIMarEST) SPECIALIST KNOWLEDGE: • Cruise ships and superyachts; new building and repair management • Marine Casualty Investigation • Root cause analysis of major incidents and failures • Diesel-electric and azipod propulsion • Gas turbines propulsion, large crosshead type, medium, and high-speed diesel engines • Refrigerated cargo ships / cellular container ships • Pre-purchase and vessel condition surveys FORMAL QUALIFICATIONS: - Unlimited Chief Engineer's Class 1 Certificate, UK Maritime and Coastguard Agency. - HNC Marine Engineering – Warsash Maritime Academy, 1996 - Diploma in Marine Investigation - Lloyds Maritime Academy, 2012 - Advanced Investigation Team Leader, Root Cause Analysis - TapRoot, 2010 - P&I Insurance and Loss Prevention – NEPIA Residential Course, 2012 - Marine Gas Turbine Advanced Maintenance and Inspection - General Electric, 2003 - Diesel Electric Propulsion / Marine Electrical Maintenance / High Voltage Systems - Cargo Refrigeration Systems - Aviation Fuel Management and Handling - Service and Maintenance – Wartsila NSD (various engine types and courses) - Command & Control Advanced Fire Fighting, Helicopter Fire & Rescue - Human Behaviour & Crisis Management of Passenger Vessels - LEAN Techniques for Managers – GL Group