11.5m - 2023 built Catamaran type Harbour Patrol and Nearshore Patrol Vessel

The 11.5m - 2023 built Catamaran type Harbour Patrol and Nearshore Patrol Vessel you're referring to sounds like a recently built patrol vessel, used for monitoring and security purposes in harbor and nearshore areas.

1. Type: It's a catamaran, which means it has two parallel hulls of equal size. This design provides stability and large deck space.

2. Size: The length of the boat is 11.5 meters. The beam (width), draft (depth), and height aren't provided but would be crucial to understanding the full size and capacity of the vessel.

3. Year of Construction: It was built in 2023, so it's a relatively new vessel which should incorporate recent advancements in maritime technology and design.

4. Use: This kind of vessel is designed for harbor and nearshore patrol duties. These could include enforcing laws and regulations in a harbor area, assisting other vessels, performing rescue operations, and providing security.

5. Features: Typical features of such vessels might include powerful engines for speed, radar and other surveillance equipment, comfortable accommodation for the crew, and possibly a small holding area for detainees if the boat is used for law enforcement.

For specific information about this particular vessel, such as the manufacturer, engine type and power, cruising and maximum speeds, fuel capacity and consumption, electronics and equipment included, crew capacity, and other specifics, you would need to refer to the manufacturer's specifications or a seller's listing.