Introduction

30.5 Metre Fast Patrol Boat is designed and built for Taiwan Coast Guard Department. It is the third generation and also the newest 100 Tons grade patrol boats owned by Taiwan Coast Guard. The boat utilizes the most modern shipbuilding technology, including:

CAD/CAM CONCURRENT SYSTEM
VIRTUAL REALITY SIMULATION
CNC WATER KNIFE CUTTING SYSTEM
"KIT" CONSTRUCTION METHOD
HULL REVOLVING JIG
AUTOMATIC MACHINERY CONTROL AND MONITORING SYSTEM

The main roles of 30.5 Metre Fast Patrol Boat is defined at:

ANTI-SMUGGLING
FISHERY PROTECTION
SEARCH AND RESCUE
ASSIST FIRE FIGHTING

Fully CAD/CAM Production System

The most modern computer technology is utilized to build the 30.5 metre fast patrol boat from concept design¡Mbasic design, detail arrangement, lofting, plate cutting and fabrication.

During design stage, all the hull forms and constructions are built in computer model to analyze the fluid dynamical characteristics and stress response to the wave load. After that, all the constructions members are generated and cut by CNC water-knife cutting machine.

The entire components inside the boat are also built in the computer model 3-D database.

The applied computer technology is including:

Computational Fluid Dynamics
Finite Element Structural Analysis
CAD/CAM concurrent engineering
Digital Precision Control
Numerical Water-knife Cutting System
Virtual Reality Simulation

Virtual Reality Simulation

One of the top computer technology applied on the 30.5 Metre Fast Patrol Boat is virtual reality simulation. In order to carry out the human engineering before building the boat, all the items and hull construction are built in the computer model database. After that, we can simulate the scene inside the boat by rendering the computer model.

Under the computer virtual reality simulation technology, the designer can walk through the simulated virtual space, and check the cockpit view, cabin interior space arrangement, and operation and maintainability inside the machinery space, without making any practical model. This will save the time and cost to develop the new boat model, and it also makes crews be possible to feel and check the boat design at early stage and modified it if necessary.

The 30.5 Metre Fast Patrol boat is built in computer model first, and discuss it with owner before building. It makes optimum satisfaction between shipyard and owner. It also reduces the design and developing time and reduces any possible errors.

Speed and Seakeeping

Speed and seakeeping performance are both considered being very important because the interception mission is always carried out on rough sea condition around Taiwan Island. The ¡§omega¡¨ shape hull form design makes the boat with the optimal result between speed and sea-keeping performance.

The 30.5 Metre fast patrol boat is also designed to carry out the long trip mission, and the capacity for fuel, water, and foods are enough to carry out three days mission for sixteen crews without any replenishment.

The hull construction design of 30.5 Metre Fast Patrol Boat is defined and proven to take the wave load until vertical acceleration 2.3g at hull gravity center. The hull construction design is approved by Det Norsk Veritas.

Maneuverability

The 30.5 Metre patrol boat is designed in good maneuver -ability to facilitate the emergent boarding suspect boat on sea during anti-smuggling mission.

The good maneuverability is also very important during the heavy sea conditions. Good maneuverability will make the boat with faster response to encounter the wild winds and huge waves.

Stability Criterion

The stability criterion is concerned both on intact and damage condition. The intact stability is defined to comply with IMO A.167 and US NAVY DDS-079 stability criterion. The damage stability is defined to comply with one compartment flooding criterion.

IMO A.167 STABILITY CRITERION

The basic stability requirement is IMO A.167 stability criterion. The 30.5 metre fast patrol boat is complied with the basic requirement without any difficulty.

US NAVY DDS-079 STABILITY CRITERION

Comply to the requirement of US NAVY DDS-079 stability criterion with 80 knots gust beam wind stability, high speed turning stability and towing stability.

DAMAGE SUVIVALBILITY ONE COMPARTMENT FLOODING

There are five watertight compartments in 30.5 metre fast patrol boat. The boat is still afloat if any one of compartment is damaged and flooded.

Unmanned Machinery Space

One of the modern trends in ship machinery design is unmanned machinery space to save the labor cost. The 30.5 Metre Fast Patrol Boat is also designed to incorporated with the modern feature.

Fully Remote Machinery Control and Monitoring System

All the main and auxiliary machinery system can be controlled and monitored remotely in bridge house. The engineer can control and monitor all the machinery condition just stay in bridge house. The main engine status is fully incorporated into one monitoring computer and graphically display on LCD screen in bridge console. The feature saves the console space and reduces the wiring work and possible errors.

Fully Automatic Electrical Power System
The 30.5 metre patrol boat is equipped with two generator sets. These two generators are controlled and monitored by the electric power control system that incorporated with the following features:

Automatic Start/Stop gensets
Automatic gensets parallel
Automatic load distribution
Heavy Consumer control
Soft Unload

Special Equipment

Fire Monitor
One fire monitor with capacity of 90 m3/Hr x 90M is installed on the top of deckhouse to carry out the fire fighting work.

4M RIB
The 4M RIB is used for rescue and also the missions on the shallow water area.

Own Ship Monitoring System (OSM)
The OSM can transmit the ship position via Inmarsat-C to shore base mission command office to facilitate the real time mission control and arrangement.

Night Vision Device
The generation II plus night vision device is quipped on board to enable the boat to carry out the all-weather mission.

Video Surveillance Recording System
During anti-illegal mission, one of the main questions is how to collect the crime evidence. The ¡§Video Surveillance Recording System¡¨ is equipped on boat and it can record the illegal action by video incorporated with DGPS data.

1800 Watt Louder Speaker
The 1800 Watt louder speaker is installed on board and facilitates the law officer to deter the crime on the noisy sea.

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