The First Word in Protective & Marine Coatings

A Product of Technology Publishing / PaintSquare
JPCL | PaintSquare News | Durability + Design | Paint BidTracker

Download the FREE Equipment and Rental Resource Guide

Paint and Coatings Industry News

Main News Page

New ‘Hull Medic’ Monitors Ship Data

Wednesday, April 6, 2011

More items for Quality Control

Comment | More

MACSEA Ltd., the marine technology company, has introduced Hull Medic, a monitoring service designed to provide ship owners with an independent, scientific assessment of coatings performance.

PC-based Hull Medic uses automatic onboard data acquisition to gather salient ship performance data and transmit it ashore for detailed analysis. Hull Medic typically reviews hundreds of thousands of a ship's data records per month, providing accurate statistical analysis for earlier detection of hull fouling, the supplier says.

The goal is to provide data that detect hull fouling as early as possible, to support decisions on coating systems and hull cleaning intervals, according to MACSEA.

Features and Capabilities

According to MACSEA, the system:

• Calculates speed, power and fuel losses due to hull fouling;

• Provides automated ship performance data collection;

• Transforms the propeller into a performance monitoring tool;

• Eliminates data scatter with advanced database filtering ; and

• Produces easy-to-understand management reports.

The system can be used to:

• Evaluate the effectiveness of alternate paint systems;

• Determine optimal hull and propeller maintenance schedules; and

• Validate energy-saving technologies related to ship performance.

The system can thus reduce fuel consumption and greenhouse gas emissions while maintaining ship service speeds, according to the manufacturer.

How It Works

Hull Medic calibrates each ship's propeller as a power absorption dynamometer, using propeller characteristics and "clean hull" ship performance data. The calibration establishes the unique relationship between speed, propeller rpm, and shaft power for each vessel.

The propeller model calibration is performed empirically from ship performance data collected immediately after hull conditioning in drydock and during periods of calm weather.



Hull Medic is an onboard data acquisition system and shore-based analysis service designed to detect hull fouling.

The resulting model is then used to track power increases over time through continuous comparison to the “clean hull” model. The difference between measured and model-derived power will grow with the onset of hull fouling. The extra power consumed by the ship is then converted into extra fuel cost based on the ship’s speed profile and consumption characteristics. A similar derivation for speed loss is also performed, and timely performance reports are provided to shipping management.

The technique works for ships with single, double, fixed, or variable pitched propellers.

 Typical Hull Medic Speed Loss Graph
 Typical Hull Medic Speed Loss Graph

MACSEA says the system uses advanced statistical and database techniques to eliminate the scatter that is typical of most ship performance data.

Founded in 1982, Stonington, CT-based MACSEA provides ship health monitoring solutions to the Naval and global shipping markets.

More information:


Tagged categories: Antifoulants; Coating performance; Marine; Marine Coatings

Comment Join the Conversation:

Sign in to our community to add your comments.

Elcometer, Inc.
Elcometer 106 Pull-Off Adhesion Tester

Portable, easy to operate; Provides numerical value for adhesion; Comes in carrying case - Ideal for site tests; No power supply necessary.

KTA-Tator, Inc. - Corporate Office
KTA Analyzes
Coating Failures

• Field Diagnosis
• Lab Diagnosis
• Determination of Cause
• Recommendations

Clemco Industries Corp.
Powerful Protection in a Small Package

Mounts inside blast helmet, alerts operator to dangerous breathing-air condition by audible, visual, and vibratory alarms. Easily calibrated, battery operated.

US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.

Minerals Research & Recovery


“Made in the USA!”

Why recycle waste from other countries? Go FASTER, CLEANER, at 1/3 THE COST with MR&R “All-American” Sharpshot®HP!!



Temporary climate control equipment. Dehumidifiers,
Heaters, A/C, Power, More…
Toll Free: 866-379-2600

Nova-Plate® 325

• Extends Service Life
• Single Coat Application
• Cure to Service in 24 Hours

Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker JPCL Europe

EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us

© Copyright 2000-2014, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail