New
NDT Service

“See through” Innovation 

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{ PEC - Deck }


Our new “see through” innovation to save you time and expense

Brookes Bell is pleased to announce a major new development for the Superyacht Industry in the field of Non Destructive Testing (NDT).

Deck replacements in Superyachts obviously leave many unanswered questions as to what lies beneath – the amount of corrosion to be treated and plate to be replaced can and does cause chaos.

The biggest issue facing both Superyacht yards and management companies is the ability to provide an all encompassing and accurate quote for works during a refit or rebuild, when it’s not possible to have a complete understanding of scope of the works at the outset.

This new technology and service gives the ability to “see through” teak decks for problems underneath. It offers a practical and sensible approach to tackling the problem of hidden corrosion in Superyachts. Taking into account the potential time and cost implications of knowing the condition of the deck plate – before removing the teak – and fully understanding the scope of works one begins to get an idea of the benefits of this new system. Which means knowing the works prior to yard time, allowing for correct budgeting, time lines and labour loadings throughout a project.

A medium sized probe scanning a deck for corrosion underneath
 

 

{ How it works }

The PEC Deck technology itself is very complex, but the execution and reporting are very simple. Scans can be done at up to 100mm per second with a scan width up to 200mm, meaning vast areas can be covered in a surprisingly short time frame.

Depending upon the area to be scanned, a large probe may be used which is the size of a very wide headed vacuum cleaner or a smaller ‘mouse like’ probe which allows access to small areas such as tight corners and side decks.

  • The data provides a residual thickness reading and calculates wastage due to corrosion.

  • The results are then plotted on to a coloured ‘map’ of the deck, highlighting areas of concern.

  • The plotted map also shows the structure underneath the deck plate in way of stiffeners, frames etc shown in the image as heavy dark blue lines.

A coloured scan of a teak deck showing corrosion
 
NDT scan showing hotspots of corrosion on a Superyacht’s stern

NDT scan showing hotspots of corrosion on a Superyacht’s stern

A PEC Deck scanner depicted detecting corrosion under a Superyacht deck
A graphic of the Pec Deck Scanner in action

 
The new equipment and scanning process allows us to see through teak cladding to scan the steel deck below, even beneath its layers of finished coatings. We can scan hulls from above or below the water line; see through non-conductive coatings, finished paintworks and antifouling.
— ARRON JACKAMAN, Managing Inspection Engineer
 
Arron Jackaman, NDT Engineer using a small PEC deck probe to scan a teak deck

 

{ The Benefits }

The benefits are clear and far reaching. The ability to know exactly what you are dealing with in terms of corrosion assessment and material wastage before you start ripping up the whole deck or surface coating is (almost) priceless.

Understandably this is of enormous benefit to the Superyacht Owner, Management Company and the Shipyard:

  • The owner and captain can see the cause of any underlying problems and are fully aware of the scope and cost of upcoming works

  • The management company can prepare the time frame, budgets, contractors etc based on hard facts – well before works are due to commence

  • The yard knows the scope of works, can prepare budgets, vessel movements, manpower positioning, subcontractor interface

  • It gives everyone a clearer idea of cost, timelines, affect on contractors and labour

A multi probe PEC Deck scanner at work on a sloping surface
 

{ Usage: when & where }

 

The equipment is portable so the scan can take place to suit the vessels movements. The Superyacht does not have to be lifted out of the water or even be moved from the spot it’s moored in. The equipment, although hi-tech, is easily transportable and is a one, or two-man job depending on the vessel’s size. It doesn’t have to be done in the yard and can easily be undertaken in the period leading up to the haul-out, or in fact at any time and anywhere.

The fact that corrosion is not normally a fast acting reaction means that the scans can be done well in advance of the works being undertaken e.g. spring for an autumn refit.

There is no requirement for removal of material, the application of sprays, dyes or gels so the inspection can be done during the season and in stages if necessary.

The technology can be used for inspecting hulls above and below the waterline and tanks, pipes of various low alloy steel – all without the need to remove cladding, insulation, paintwork and fillers.

 

{ The Final Report }

 
Final PEC Deck scan for a report showing a deck and fixtures on a Superyacht
 

The final report is produced in an easy to read format that clearly shows the areas of concern that need treating or replacing.

A simple colour spectrum provides a comprehensive and understandable “at a glance” view as well as the detail needed to assess the size of the issue: with blue (good and sound) through to green, yellow and orange to red (bad, area for concern).

 

 

{ Specialist team }

To find out more or book an NDT scan, call Patrick. +44 7384 517 639 / +34 672 268 328

Or email the superyacht team.