RESOLVE TECHNICAL EVENT & CONFERENCE Please Install Lato Font Before to work on your presentation you can download for free lato font here http://www.fontsquirrel.com/fonts/LATO RESOLVE TECHNICAL EVENT & CONFERENCE AT “YACHT CLUB OF GREECE”, KASTELLA – PIRAEUS, WEDNESDAY 25.04.2018

DAMAGE STABILITY

What is Damage Stability Analysis? The process of evaluating the hydrostatic and structural properties of a vessel undergoing a condition it was not designed for Allows responders to “test” multiple solutions to the problem at hand without risking life, environment or property. Evaluate dangers for vessels’ progressive flooding and find effective ways to avoid vessels’ further immersion by adopting series of corrective and preventive actions. Gives regulators/owners/clients the opportunity to evaluate and approve a salvage plan prior to making operational decisions.

Who needs damage stability? Vessel interests Ship owners Hull Underwriters and P&I Clubs Vessel management companies Local Interests near casualty Government both federal and state (pollution risk) Enforcement agencies Responders attempting to remedy the solution Salvors

Who are the providers? Class Societies (ABS, DNV, LLOYDS, etc.…) Select P&I Clubs Select Naval Architect Firms Select Salvage Companies (RESOLVE)

Provider Differences Capabilities Class Societies Select P&I Evaluate Floating Conditions Evaluate Ground Conditions Salvage Solution On Site Analysis Convert Plan to Action Capabilities Class Societies Select P&I Loading Computer

Hurdles Encountered Time! Drawings/Information: a. Shipyard, b.Owner, c. Class Building the model Getting accurate on-site information Making timely decisions To provide the vessel’s “electronic twin”, which as model should have the same drafts / trim / list as the actual drafts / trim / list of the damaged vessel. To prepare a series of scenarios for the vessel’s remedial actions and check whatever consequences / results, plus their reliability.

Some clarifications – Part 1 Usually lines plan and body plan are not available, mainly for existing vessels, or shipbuilding yard refuses to provide copies. Practically speaking, no problem: a series of vessel’s sections (transverse, longitudinal, plan-views) can be taken from the vessel’ structural plans. Subsequent verification of hull form / vessel’s model should be made through comparisons with the hydrostatic data. Even under these adverse circumstances, vessel’s model can be finalized within 2-3 days. Most critical problem is the lack of “lightship distribution curve”, but even in this case such missing datum can be resolved.

Some clarifications – Part 2 Why is it so significant to study the vessel’s remaining stability and its residual strength (if hull is damaged)  Who are the “beneficial parties” from the series of reliable and accurate Naval Architecture calculations and investigations?  The role and the responsibilities of the onboard Advisory Group, for collecting data and particulars for vessel’s damages.  Explain reasons why vessel’s damage stability program (as contained in loading instrument) cannot be used in actual emergencies.  Characteristics and dimensions of the vessel’s hypothetical damage for the calculations as per the IMO “Stability Code”.  Owners obligations to define precisely vessel’s modifications, changes and differences from sister-ships: possible verifications through photos and sketches.

Benefits for the Resolve clients: Four (4) separate teams of very experienced Naval Architects are available in Fort Lauderdale / Resolve Headquarters, London, Singapore and Piraeus. Needed time of 2-3 working days for the model configuration, in case lines plan and all necessary drawings are available (electronic form). Full and direct communication – correspondence with the onboard advisory group. No delays, no time differences and Naval Architects team work round the clock. No need for the owners to pay any fees for the vessel’s model and/or to keep updated the vessel’s database. Related expenses could be covered by respective LOF agreement signed with Resolve.

Case Study – MV SEAGATE – Port Au Prince, Haití

First Contact Initial Vessel Survey Case Study First Contact Baseline information provided by the crew and ER team to allow the DS assessment to begin and decisions to be made. Initial Vessel Survey Type of Incident (grounding/collision/fire) Location Drafts (both before/after the incident) Damage (severity/locations) Loading condition Machinery Capability/Status Weather/Sea State

Information Gathering Case Study Information Gathering Where we start the process… Taking a detailed look at the casualty in the beginning is important to understand the scope of work required and constraints that will be needed to be taken into consideration during the solution phase 1 Get the ships plans (if available) 2 Build model and recreate pre-sail conditions 3 Take Tank Soundings and Draft Readings! 4 Recreate current condition and evaluate structural integrity and damaged stability

Model Constructed Vessel Plans GHS (General Hydrostatics) Case Study Model Constructed Vessel Plans GHS (General Hydrostatics) Stability Booklet Lines Plans (usually hard to get a hold of) General Arrangement Tank Capacity Plan Hydrostatics Fire and Safety Plan Structural Drawings Vents/Sounds or any piping schematics Groundings Damaged/Flooded Compartments Tanks Longitudinal Strength (Global structure) Intact/Damage Stability

1 2 3 4 Initial Conditions Where we start solving the problem… Case Study Initial Conditions Where we start solving the problem… Taking a detailed look at the casualty in the beginning is important to understand the scope of work required and constraints that will be needed to be taken into consideration during the solution phase 1 Damage - Engine room is entirely flooded and breached. Missing structure on starboard side. 2 Cargo - Vessel is totally loaded with a few thousand tons of grain cargo. 3 Tank Status – Innages/Ullages taken on each tank to determine status. Intact vs Damaged 4 Freeboard measurements – Global strength intact? Hogging/Sagging? Will be able to evaluate ground reaction as well from this information if applicable

What’s the plan? Trim Vessel Forward Repair Damage Ready Vessel for Towage Deballast Water in Forward Cargo Holds Monitor Watertight Integrity Repair Damage Source materials Position small barge near damage Weld Plates over Damage – Class Approval to Sail Trim Vessel Forward Lighter Aft Cargo Holds Pump Water Into Forward Cargo Holds Monitor Bending Stresses

(Re)Solution Process Compare to Alternative Set Initial Conditions Case Study (Re)Solution Process Compare to Alternative Set Initial Conditions Compare the final condition to the previous conditions found. Identify actions that move closer to goal at hand. Set the model’s conditions to the initial conditions seen by the naval architect Evaluate Output Alter Conditions Determine if goal can be reached using this method. Determine effects of moving cargo and ballasting tanks towards goal

SOLUTION FOUND Ballast Operations Check Bending Moments Lightering of cargo Temporary Patching and Repairs Clean and Dewater the Engine Room Stability confirmed and redelivered to the owners

TAKE ACTION! The ability to turn a well thought out plan into an action is the key to a successful salvage operation.

TAKE ACTION! The ability to turn a well thought out plan into an action is the key to a successful salvage operation.

SOLVED! TAKE ACTION! The ability to turn a well thought out plan into an action is the key to a successful salvage operation.

Thank you for your attention / Now time for questions & clarifications / Dimos Iliopoulos