Trusted Partner in Ship Design and Engineering
At LTH-Baas, our Design and Engineering Division is committed to being a trusted partner to shipowners and shipyards, helping
- maximize vessel performance
- increase operational efficiency
- and reduce project costs
For all types of vessels:
- passenger vessels
- cruise ships
- defense
- navy
- offshore structures
- any others
We specialize in retrofit design services that are not only cost-effective but also easy to implement and maintain — delivering practical, real-world solutions that traditional design houses cannot match.
Expertise in Advanced Marine Retrofit Design
With 29+ years of hands-on experience in shipbuilding and ship retrofit installation projects, our team delivers engineering solutions that prioritize precision, speed, and efficiency.
Key strengths of our approach include
3D Laser Scanning & Point Cloud Modeling
We use accurate 3D laser-scanned point clouds to develop optimal retrofit layouts.
This data-driven method:
• Minimizes the need for rerouting
• Maximizes prefabrication opportunities
• Optimizes the use of limited onboard space
• Reduces time spent in drydock
• Shipowners and designers make faster, more informed decisions
• Improve planning accuracy during the pre-drydock phase
Smart Design (VR-modeling & 3D design)
LTH-Baas introduces Smart Design approach using Augmented and Virtual Reality technologies in design of technical retrofit projects.
About our Design & Engineering Team
The engineering department of LTH-Baas consists of high-skilled top-notch engineers with high academic grades from recognizable marine and technology universities.
- Doctors of Science (Aalto University and Norwegian University of Science and Technology)
- Doctoral candidates (Aalto University and Norwegian University of Science and Technology)
- Masters of Science (Aalto University)
- M.Sc engineers from other engineering fields
- High competence partners
World-Class Talents with Real Shipyard Experience
Many of our experts hold D.Sc. and M.Sc. degrees from top maritime universities, including:
• Aalto University (Finland)
• TalTech – Tallinn University of Technology (Estonia)
They also bring real-world experience from working at leading shipyards and marine design houses, ensuring our clients benefit from:
• Deep understanding of marine engineering challenges
• Innovative solutions grounded in practical shipbuilding experience
• Compliance with international maritime standards and classification society rules
From Feasibility Studies to Commissioning
We’ve Got You Covered!
We provide full lifecycle support for your marine project:
-
Feasibility studies
-
Engineering design
-
3D modeling and visualization
-
On-site support during commissioning
Our integrated team ensures that every technical detail and design element works together — reducing project risk, saving time in drydock, and maximizing long-term vessel performance.
Design & Engineering Services
Consulting & Advanced Calculation Services
At LTH-Baas, we provide a wide range of feasibility studies and technical consulting services to help shipowners make confident, cost-effective decisions on retrofit and upgrade projects for all types of vessels.
Our engineering team has supported clients with detailed feasibility analyses for projects including:
• Technical Feasibility Studies & Engineering Support
• Structural optimization
• Replacement studies for large machinery and equipment
• LNG retrofit conversions
• Energy efficiency retrofits
• Selective Catalytic Reduction – SCR – unit integrations onboard Floating Regasification Storage Units (FRSUs)
• Scrubber, EGCS integrations
These studies are backed by practical experience and data-driven assessments that reduce risk and improve project outcomes.



Strength analysis & optimization of cruise ship glass structures, 50% of glass mass saved.
Vibration Measurement & Structural Damage Assessment
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Section Three
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Structural engineering
Advanced fatigue and vibration analysis
LTH-Baas offers:
- Global & local strength analysis
- Creating global and local calculation (finite element) models
- High & low-frequency vibration analysis
- Free & forced vibration
- Buckling check
- Fatigue assessment
- The basic design of ship structures – glass and steel structures
- Advanced fatigue and vibration analysis


Basic & detail interior design
Lower vibration design
LTH-Baas offers:
- Basic & detail interior design of
- Cabins
- Corridors
- Restaurants
- Etc.
- Lower vibration design
Design of glass structures in modern cruise ship
Our Design & Engineering team combines deep technical knowledge with creative design thinking to deliver world-class results across every phase of shipbuilding and retrofit projects.
We bring together highly skilled:
• Structural engineers
• Electrical and systems engineers
• Marine interior designers
Our team’s collaborative approach ensures that all engineering and design disciplines work seamlessly to meet your project’s technical, regulatory, and aesthetic requirements.

Interior Design of complex areas
LTH-Baas has high competence of interior design of complicated areas:
- suites,
- restaurants,
- medical center
- etc.
3D design is extensively used.
Basic, detailed, constructive design allows:
- Help to avoid uncertainties and mistakes during the installation
- Better quality and mass control
- Faster installation
Systems & Piping
LTH-Baas offers:
- Design of scrubber systems
- Open-loop, closed-loop, hybrid systems
- Feasibility studies
- Risk assessments
- Fuel Feeder Modules
- Ballast water treatment systems
LTH-Baas has high engineering competence in various retrofit projects
Conceptual, basic and detailed design:
- Arrangement design
- Pipe routing and rearrangement
- Cover, tanks, and foundation
- Pipes and scrubber supports



Recent Engineering and Design References
… just to mention a few
GRP piping system installation
CO2 steel pipes and equipment
PAX cabins and alleyways interior outfitting
GRP piping system installation
PAX cabins outfitting
Hi-Fog installation.
GRP piping system installation.
PAX cabins outfitting.
Hi-Fog fire fighting system installation
Cabin areas interior outfitting.
Hi-Fog and CO2 fire fighting system installation.
Hi-Fog fire fighting system installation
Project keywords: Cold Ironing, Shore Connection, Shore-to-Ship Power (SSP) or Alternative Maritime Power (AMP)
Piping systems installation
Hi-Fog system ‘turn-key’ installation
RCCL at Chantiers de l’Atlantique in Saint Nazaire.
‘Turn-key’ closed loop scrubber integration in dry-dock and in operation
Finnlines PLC / Finland
Wärtsilä Corp. / USA
FInnlines PLC / Germany
FInnlines PLC / Germany
Charge Air cooler replacement and US cleaning
FInnlines PLC / Poland
Charge Air cooler replacement and US cleaning
FInnlines PLC / Poland
Charge Air cooler replacement and US cleaning
FInnlines PLC / Finland
Charge Air Cooler Delta cleaning system installation
Wärtsilä Corp./ USA
Turbocharger upgrade from type VTR to type TPL69-A32
including all connected works with replacement
Wärtsilä Corp.
USA
Turbocharger upgrade from type VTR to type TPL69-A32
including all connected works with replacement
Wärtsilä Corp.
USA
Turbocharger upgrade from type VTR to type TPL69-A32
including all connected works with replacement
Wärtsilä Corp.
Australia
Turbocharger upgrade from type VTR to type TPL73-A32
including all connected works with replacement
Wärtsilä Corp.
Australia & New Zealand
Turbocharger upgrade from type VTR to type TPL73-A32
including all connected works with replacement
Wärtsilä Corp.
Australia & New Zealand
Turbochargers washer units and Twin Nozzle turbine washers installation
Wärtsilä Corp.
USA
Turbocharger upgrade from type VTR to type TPL73-A32
Wärtsilä Corp. / Europe
Charge Air Cooler delta cleaning system installation
Wärtsilä Corp.
Europe
Turbocharger upgrade from type VTR to type TPL69-A32
Wärtsilä Corp. / USA
Variable Inlet Valve Closing (VIC) installation
Wärtsilä Corp.
USA
Turbocharger upgrade from type VTR to type TPL69-A32
including all connected works with replacement
Wärtsilä Corp.
Europe
Turbocharger upgrade from type VTR to type TPL69-A32
including all connected works with replacement
Wärtsilä Corp.
Europe
Turbocharger upgrade from type VTR to type TPL73-A32
including all connected works with replacement
Wärtsilä Corp.
Canada
Turbocharger upgrade from type VTR to type TPL73-A32
including all connected works with replacement
Wärtsilä Corp.
Canada
Turbocharger upgrade from type VTR to type TPL73-A32
including all connected works with replacement
Wärtsilä Corp.
USA
Turbocharger upgrade from type VTR to type TPL73-A32
including all connected works with replacement
Wärtsilä Corp.
USA
Turbocharger upgrade from type VTR to type TPL73-A32
including all connected works with replacement
Wärtsilä Corp.
UK
‘Turn-key’ closed loop scrubber integration in dry-dock and in operation
LTH-Baas introduces Smart Design of technical retrofit projects
Hi-Fog system ‘turn-key’ installation
Chantier de l’Atlantique
Saint-Nazaire, France
Stena Lines
Dream Cruises
‘Turn-key’ closed loop scrubber integration in dry-dock and in operation
‘Turn-key’ Advanced Emission Purification system (scrubber) integration.
‘Turn-key’ Advanced Emission Purification system (scrubber) integration.
Portable water system replacement.
Water Mist Fire Protection system.
for Marioff Corporation at Fincantieri Monfalcone
m/s Carnival Breeze
Extension of Water Mist Fire Protection
Marioff Corporation
Marioff Corporation Oy
for Carnival Cruise Lines
m/s Carnival Freedom
Extension of Water Mist Fire Protection
Marioff Corporation
Marioff Corporation at STX France
at STX Finland for Marioff Corporation Oy
Marghera Shipyard
Fincantieri, Italy
Marioff
Hi-Fog sprinkler system modernizations in
North America, Europe, and Australia
Marioff Corporation Oy
STX France in Saint Nazaire, France
Marioff Corporation Oy at STX France
Saint Nazaire, France
Marioff Corporation Oy
at STX Europe in Turku, Finland
Marioff
Fincantieri in Ancona, Italy
Marioff, Fincantieri, Genoa
Hi-Fog system installation
Saint Nazaire, France
Hi-Fog sprinkler system "turn-key" installation
Saint Nazaire, France
Hi-Fog "turn-key" installation
Marioff, STX Europe
Turku, Finland
Hi-Fog installation: manifolds, engine room
m/s Seabourn Sojourn
Marioff, at T.Mariotti
Genoa, Italy
Hi-Fog “turn-key” installation
Marioff, STX Europe, Saint Nazaire, France
Hi-Fog "turn-key" installation
Marioff, Fincantieri
Genoa, Italy
Hi-Fog sprinkler system, installation
Marioff Corporation at STX Europe
Saint Nazaire, France
Hi-Fog sprinkler system "turn-key" installation
Marseille, France
Hi-Fog fire extinguishing system modification
Marioff Corporation at Mariotti
Genoa, Italy
Marioff Corporation at Fincantieri
Ancona, Italy
Hi-Fog installation
Saint Nazaire, France
Marioff
Marioff Corporation
Hi-Fog sprinler system installation
Genoa, Italy
Marioff Corporation at Fincantieri
Hi-Fog installation
Genoa, Italy
Marioff Corporation, Italy
Hi-Fog turn-key installation
Marioff
Tunisia
work supervision
Marioff Corporation, Egypt
Turn-key installation
2000 sprinklers, 13 section valves
Marioff Corporation, Italy
Turn-key installation, 1400 sprinklers
Marioff Corporation, France
Turn-key installation, 1200 sprinklers
Marioff Corporation, France
Turn-key installation, 900 sprinklers
Marioff Corporation, France
Turn-key installation
Marioff Corporation
Turn-key installation
Marioff Corporation
Marioff Corporation, France
Modification in the local protection
and accommodation areas
Marioff Corporation, France
Turn-key installation
Marioff Corporation, Finland
Turn-key installation
Eckerö Line, Finland
Turn-key installation
Eckerö Line, Finland
Turn-key installation
Eckerö Line, Finland
Local protection
Marioff Corporation, Russia
Marioff
Armenia
Antifire
Estonia
Marioff
France
Hi-Fog sprinkler system installation
Marioff
Sprinkler system installation
Tallinn, Estonia
Marioff SAS
Hi-Fog system installation
Kuopio, Finland
Firekone
Sprinkler system installation
Marioff SAS
Hi-Fog system installation
Arctech, Helsinki, Finland
Keppel Verolme
The Netherlands
M/E Sulzer 8ZA40S
Main brig replacement
A/E Mitsubishi S6R2-MPTK
1 Cylinder unit overhaul with cylinder liner replacement
During ship normal operation
Kapelskar, Sweden
Maintenance of A/E Sulzer 8S20U, M/E 2pcs. of Sulzer 8ZA40S, M/E Sulzer 8ZA40S
M/E Sulzer 8ZA40S
Main BRGs replacement
during ship normal operation
in Finland - Sweden Route
M/E Wärtsilä 9L46C and A/E Sulzer 8S20U maintenance during normal operation
cylinder overhauling
during normal operation in Finland – Spain route
M/E MAN B&W 9L48/60 B 1
cylinder overhauling
during normal operation in Finland – Spain route
M/E Sulzer 8ZAL40S 1 cylinder unit emergency overhauling
During Finland – Sweden route
Fuel Injectors complete overhauling
Tallinn, Estonia.
M.E Sulzer 12ZAV 40 S complete overhaul
normal oepration in Finland – Sweden route
A/E Mitsubishi S6R engine block works
Genting Cruise Lines
M.V. Werften
Wismar / Rostock, Germany
Chantiers de l’Atlantique
Saint-Nazaire, France
Chantier de l’Atlantique
Saint-Nazaire, France
Meyer Turku
Finland
Norway
Holland America Line
Pipelines replacement
Galley equipment replacement
SeaTrucksGroup
Nigeria
Pipelines replacement
Galley equipment replacement
SeaTrucksGroup
Nigeria
STX France
IHC Piping - small bore pipes installation
The Netherlands
Arctech Helsinki Shipyard Inc.
Helsinki, Finland
Merima Oy at STX Europe, Rauma, Finland
Two decks of public areas, piping systems installation
Merima Oy at STX Europe, Rauma, Finland
Two decks of public areas, piping systems installation
Grand Promenade, piping systems installation
Merima Oy at STX Europe, Turku, Finland
PAX accommodation areas ‘turn-key’ outfitting
Piping systems installation
Hi-Fog system ‘turn-key’ installation
PAX accommodation areas ‘turn-key’ outfitting
Piping systems installation
Hi-Fog system ‘turn-key’ installation
Europlan at STX Europe, Helsinki
deck 7, 8 piping systems installation
Merima Oy at STX Europe, Rauma, Finland
Deck 6-7 piping outfitting
Dream Cruises
Dream Cruises
Dream Cruises
design, procurement, materials system and owner’s supervision
Aker Yards, Rauma, Finland
Deck 9, piping systems installation
Merima Oy at STX Europe, Rauma
Deck 6-7, piping systems installation
Merima Oy at STX Europe, Rauma, Finland
Deck 6-7, piping systems installation
Portable water system replacement
Accommodation area refurbishment
Observation lounge, main dinning room
Cabins refit
Eckerö Linjen
Eckerö Line
FleetPro
USA, Florida
Interior refit
Refurbishment ca 3000 m2
DAMEN Shiprepair
Rotterdam, Netherlands
Steelworks
DAMEN Shiprepair
Rotterdam, Netherlands
PS and SB rudders
Bilge keel
Stern thrusters repair
Bow thrusters corroded areas repaired
Repair self-emptying channel regulating valves
Repair self-emptying valves
Gate valve repairs
Jet Pipe to be repaired
Access platforms - Fairlead Rolle
Fabrication of walkway for top deck platform
Installation of platform stiffeners
Modification of care ladder
Installation of Bumper frames
Installation of electric cable trays
Sea Fastenings base frame and T-Bar on deck
Installation of ROV Platform on the vessel
Steel repair/renewal steel WBT 2 PS FR 84/83
Steel repair/renewal steel WBT 3 PS FR 75
Dented shell plating SB
Installation of foundations for generators and diesel tank
Modification of stair tower platform
Installation of safety railings
Fabrication cable supports
Renew damage platform on SB
Fabrication of foundations for fuel bunkering
Foundations for electrical connections
Bow thruster steel repair
Renew Cargo hold hatches
Renew cell guides
Renew cargo hold coaming
Crack repair in the steering gear room
Installation of rope guard
Damen Shiprepair
Rotterdam
Sea Trucks Group
Indonesia
Damen Shiprepair
Rotterdam, the Netherlands
Damen Shiprepair Rotterdam
the Netherlands
Damen Shiprepair Rotterdam
the Netherlands
Damen Shiprepair Rotterdam
the Netherlands
Damen Shiprepair Rotterdam
the Netherlands
Marioff Corporation, Poland
Damen Shiprepair
Brest, France
Public areas refurbishment ca 680 m2
Shipyard Zvyozdochka, Severodvinsk, Russia
Refit: aft and fore saloons, main dining room
Merima Oy at STX Europe, Rauma, Finland
Deck 6-7, piping systems installation
Helsinki, Finland
Hi-Fog installation, ca 1,5 km