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maritime DC & PPE Information Center


Flooding Casualty Control Software (FCCS)


Flooding Casualty Control Software (FCCS) is a high performance, Windows™-based, shipboard  load management and stability evaluation tool, designed to  support  the DCA and the damage control shipboard organization. As a tactical decision aid, FCCS provides Damage Control personnel critical stability information to support decision making in real-time, before, during and after casualty situations. It was released to the fleet in 2000 and has undergone many changes since--the latest revision occurring in 2008.


Here is what FCCS is designed to do:

* Calculate and evaluate the ship's attitude, hydrostatic properties, stability and strength status

* Model  a ship's loads (dry loads, liquid loads, ice loads, crane lifts, wind loads) and track them over time

* Evaluate the effects of flooding on stability and strength

* Evaluate longitudinal strength in various sea states

* Evaluate the effects of structural damage on longitudinal strength

* Provide warnings and recommendations when the vessel fails required stability or strength criteria

* Evaluate stability and bottom reaction forces during vessel stranding

* Calculate stability during a dry-docking evolution

* Calculate the effect of opening and closing the well-deck door

* Provide rigorously tested recommendations through the intelligent decision aid (IDA) for liquid-load modifications that can improve the stability and/ or residual strength of the vessel

FCCS is ship-specific. Based on the ship's current inclining experiment, FCCS will provide optimal stability recommendations. [Note: An "inclining experiment" consists of moving known weights certain specified distances across the deck and recording the angles of heel produced. The data is used to calculate the vertical position of the center of gravity.] Once the CD is received, the program is validated through a comprehensive weight-verification walk-through. The DCA is responsible for validating FCCS and taking measures to ensure it's as accurate as possible. Without an adequate verification walkthrough, FCCS will produce invalid results. It is recommend that the verification walkthrough be completed before getting underway, while the ship is fully loaded and pierside.

Although extreme situations are rare, the user should frequently consult the available tools and publications. Consider making an FCCS operator billet for general quarters.

How does this aid decision-makers with stability considerations? As professional DC personnel, your duty is to encourage the entire crew to understand and practice proper corrective actions, even in the most extreme of stability situations.

The DCA is responsible for all efforts in combating shipboard casualties by applying specific knowledge and focused training. Stability issues caused by extreme events endanger the entire crew, regardless of the level of training. Extreme stability situations will require an all-hands effort to contain.

By taking proactive steps and using available tools, crews will be more able to combat damage that potentially may sink a ship. Don't be a statistic. Don't be unaware of your options when your ship has experienced abnormal stability situations. Train on the deadly consequences of ship grounding, stranding and collision to quickly and effectively eliminate responder confusion.

FCCS is taught as part of the Stability lesson at the SWOS DCASE course.  For shipboard technical support and assistance on the use of FCCS software please contact John.Rosborough@navy.mil or phone 301-227-5392.