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Since the Righting Arm Curve (GZ) is the basis for ship damage stability evaluation the software has the ability to perform accurate calculations on the varying trim mode and lost buoyancy method as for a freely floating ship which changes trim depending on the longitudinal equilibrium. Stability details and powerful graphics; Squat calculations; Ballast simulation option: The User will enter desired floating position, and the ShipLoad program will calculate the necessary WB operations – both the quantity and the sequence of operations.

1. Vessel Stability Calculation
2. Ship Stability Calculations
3. Basic Ship Stability Calculations
4. Ship Stability Formulas

Maximize safety and load

The ability to optimize load while minimizing stress and safety risk is a key competitive advantage for shipowners and operators. With over 2000 installations onboard, major shipping companies around the world trust NAPA’s stability expertise. NAPA Loading Computer safely ensures optimal planning of stowage, cargo and ballast for every ship type. The system covers a wide range of calculations related to hydrostatics, intact stability, damage stability and longitudinal strength.

NAPA Loading Computer comes with:

• Dynamic graphical interface enabling user-friendly experience
• Extremely accurate 3D calculation engine based on sophisticated ship design mathematics
• Constant monitoring of ship safety (stability, strength and operational constraints), and warnings if limits are exceeded
• Unrivaled damage stability and decision support capabilities
• Interfaces for tank gauging, automation system and void space sensors
• Outstanding connectivity to the ship owner’s office applications
• Fully equipped for industry standard emergency response systems – including proven compatibility with Lloyd’s Register and DNV-GL Emergency Response Services
• Approved by all major class societies

NAPA Loading Computer webinar recordings:

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NAPA Loading Computer for your ship

Cruise ships

NAPA is one of the world’s most trusted stability solution providers for cruise ships. The specially customized cruise ship version of NAPA Loading Computer is an effective and straightforward tool for defining and planning everyday loading conditions and performing accurate damage stability calculations.

• The user-friendly graphical user interface is based on the highly accurate NAPA 3D ship model
• Assessment of the ship’s stability for both intact and damaged conditions
• Providing a solution for liquid transfers in order to find a certain floating position
• Calculation of longitudinal strength and providing alerts if limits are exceeded
• Performance of a grounding assessment with ground reaction forces and enabling the simulation of countermeasures for finding the optimal way to make the ship float freely again
• Providing the optimum floating position for most effective performance
• Safe Return to Port (SRtP) and IACS Type 4 compliant
• Type approved for DNV GL additional Loading Computer System Damage Control LCS(DC)

NAPA Loading Computer for your ship

Ferries and RoRos

Ferry and RoRo version of NAPA Loading Computer encompasses ferries, RoRos, RoPaxes, StoRos and LoLos. It includes tools to define ferry, RoRo and StoRo cargo units and use the units in cargo loading operations to cargo decks taking into account various load limitations.

• NAPA Loading Computer comes with a clear, easy-to-use and dynamic graphical user interface
• Easy to handle IMO dangerous cargo via user-defined IMDG cargo database
• Automatic check of compliance with the relevant intact stability criteria and longitudinal strength limits
• Superior tools for the calculation of stability on damage conditions
• Safe Return to Port (SRtP) and IACS Type 4 compliant
• Type approved for DNV GL additional Loading Computer System Damage Control LCS(DC)

NAPA Loading Computer for your ship

Tankers and FPSOs

Vessel Stability Calculation

The tanker version of NAPA Loading Computer covers all tanker types – including crude oil carriers, product tankers, chemical tankers, LNG tankers, LPG tankers, FPSOs, bitum tankers and drillships – and offers a number of important benefits to ship owners, charterers and shipyards. It includes superior tools for stowage planning, cargo operation monitoring and damage calculation.

• NAPA Loading Computer comes with a clear, easy-to-use and dynamic graphical user interface
• NAPA Loading Computer is 100% compatible with the NAPA ship design software that is used by world’s leading shipyards and classification societies
• NAPA Loading Computer is compatible with Lloyd’s Register and DNV-GL Emergency Response Services
• NAPA Loading Computer can be linked with the ship owner’s office applications to save time and reduce human errors

NAPA Loading Computer for your ship

Megayachts and Superyachts

Yacht version of NAPA Loading Computer includes excellent defining, planning and monitoring functions for everyday intact stability calculations. The advanced damage stability features can be used for training the crew to be better prepared for possible emergency situations where the yacht may be damaged and loses its seaworthiness, stability or structural strength.

Should a real emergency situation occur, NAPA Loading Computer provides invaluable help for assessing ship stability and timely countermeasures.

NAPA Loading Computer for Megayachts and Superyachts also comes with:

• User-friendly graphical user interface
• Assessment of the yacht’s stability in intact and damaged conditions
• Monitoring of different tanks
• Alarm when intact or damage stability criteria are not met
• Solution for liquid transfers in order to achieve a certain floating position
• Performance of a grounding assessment with ground reaction forces and enabling the simulation of countermeasures for finding the optimal way to make the yacht float freely again
• Decision Support concept provides even more advanced features for preparing for and handling on board emergency situations

NAPA Loading Computer for your ship

Offshore vessels

The offshore version of NAPA Loading Computer offers excellent possibilities to calculate vessel stability and longitudinal strength in many offshore-specific operations, such as changing the condition of mass loads (e.g. a helicopter), anti-heeling measures or towing.

• NAPA Loading Computer comes with a clear, easy-to-use and dynamic graphical user interface
• Cargo loading operations using the user-defined cargo database and taking into account various load limitations
• Planning and prediction of ship behavior related to loading and discharging cargo with cranes
• Ability to calculate the effects of towing force and automatically checks compliance with the relevant stability criteria
• Automatic check of compliance with the relevant intact stability criteria and longitudinal strength limits
• Superior tools for the calculation of stability on damage conditions

NAPA Loading Computer for your ship

Navy ships

In combat situation, it must be possible both to evaluate the ship’s survivability and to make well-informed decisions very quickly. NAPA Loading Computer provides effective tools for this decision-making process.

The naval ship version of NAPA Loading Computer also includes features for analyzing the ship’s stability and strength in intact and damaged conditions.

• Assessment of ship stability in intact and damaged conditions
• Assessment of the effect of other deadweight items, such as ammunition
• Calculation of longitudinal strength and providing alerts if limits are exceeded
• Assessment of the residual strength after collision or combat damage
• The NAPA Loading Computer Decision Support concept provides even more advanced tools for dealing with on board emergencies, for example, in combat situations
• Integration with the Platform Management System

NAPA Loading Computer for your ship

Bulkers

The bulker version of NAPA Loading Computer is an effective and straightforward tool for defining and planning everyday loading conditions and performing accurate stability and strength calculations.

• The bulker version of NAPA Loading Computer covers the needs for different types of bulk carriers, including iron ore, grain and coal
• NAPA Loading Computer comes with a clear, easy-to-use and dynamic graphical user interface
• Superior tools for cargo loading monitoring and damage calculations
• Ability to load different kinds of bulk in one cargo hold simultaneously
• NAPA Loading Computer is 100% compatible with the NAPA ship design software used by the world’s leading shipyards and classification societies
• NAPA Loading Computer is compatible with Lloyd’s Register and DNV-GL Emergency Response Services

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Ship Stability Calculations

SPS Overview

The name SPS stands for Ship Planning System. SPS is the ultimate graphical stowage planning software that provides powerful tools for planning various types of ships and cargo.

Its operation is based on true 3-dimensional model of ship and internal compartments. That delivers accurate calculation results and enables 3-dimensional visualization of the ship and cargo during the planning process.

Due to its modular structure SPS can be configured for virtually any type of ship. Putting together combination of modules makes SPS perfect stowage planning tool for multipurpose ships.

SPS is most suitable for installation on board the ships as a part of loading computer software and in shore based operations where the ship’s particulars and documentation is available well in advance before commencing the cargo planning process.

Through the years in operations SPS has gained reputation and popularity among the ship planners and deck officers in the most prominent shipping and stevedoring companies all round the globe. With continuous development of advanced functionality it maintains its position as the leader among the ship planning and loading computer software on the market.

Highlights of SPS

Graphical User Interface

The most remarkable characteristic of SPS is its graphical capability. Extensive use of computer graphics presenting cargo items of various shapes in their exact stowage positions on the ship in schematic and 3-dimensional isometric views, simple and intuitive ways of stowing and moving cargo around with drag-and-drop function is the hallmark of our ship planning software.

Modular Structure

Different types of ships require different methods of cargo planning and style of stowage plan presentation.

Modular structure of SPS allows tailoring it to wide array of ship types and cargoes: RoRo; container; heavy lift and project cargo; bulk (dry and liquid); break-bulk; open hatch; tween deck, and any combination of the above ship types.

The programming modules exchange data in real time, making the process of planning multipurpose ships smooth and hassle-free within one software application.

To learn more about SPS please examine some of the solutions clicking on the respective links at the side bar menu.

SPS can be connected to Autoload, the most advanced stability analysis software, which provides real-time accurate feedback on ship’s hydrostatic parameters and floating status in the process of load planning. Combination of SPS and Autoload makes it perfect loading computer system for use on board of any type of ships.

Click the link to read more about Autoload stability module …

Scalable

The modules of SPS can be deployed as stand-alone applications on individual computers. At the same time the entire software system can be installed on the networked computers throughout your offices and integrated with your in-house information system bringing ship planning and cargo data processing on one software platform.

Voyage scenario

The functioning of SPS is built on the concept of total voyage scenario. That means the user can plan not just one port condition at a time, but optimize utilization of cargo space and ship’s capacity through the entire voyage. As additional benefits to that SPS provides:

• ability to instantly switch from one port condition to another to make fine-tuning of the plan;
• automatic update of the stowage plan when switching from port to port;
• automated control over possible stowage conflicts in the future or previous ports safeguarding the user from unexpected nasty surprises;
• possibility to plan and control cargo re-stows and shifting.

Drag-and-drop stowage method

The main method of stowage planning in SPS is dragging the cargo in graphical plan with the mouse and dropping it in the desired position. In the process the program renders the cargo 3D geometry based on its dimensions.

Built-in Stowage rules

There is a set of automated stowage rules in SPS that the planner can select and employ when stowing mass cargo or multiple units of breakbulk cargo. The program performs automatic check of stowage limitations and possible stowage conflicts and alarms the user if any problem is detected.

Cargo List

Important part of SPS is the searchable Cargo or Booking List with its very well developed functionality. Here the user can analyze and monitor type and amount of cargo stowed, yet to be stowed, its properties and characteristics. Ability to sort and filter cargo by various custom criteria facilitates the work with the Cargo List and makes cargo data analysis and tracking easy.

Electronic Data Interchange

SPS can be fully integrated in the ship operator's logistics chain of cargo data processing through the well developed EDI interface. SPS supports several standard UN / EDIFACT protocols, custom EDI protocols can be added as well.

Reporting capability

All stowage planning culminates in the set of reports. SPS provides very well developed reporting engine that allows the user to produce stowage plans and various cargo statistics reports in electronic PDF format. These reports can be printed, archived or sent as email attachments.

Basic Ship Stability Calculations

SPS provides management solution that improves cargo handling efficiency, utilization of ship’s capacity, and fully integrates planning operations into the real-time logistical chain.

Ship Stability Formulas

Contact us to find out which solution may best suite your operations or how we can tailor it to your specific needs.