GB 12 XL

Glass bottom boat

GB 12XL is a fiberglass trimaran designed for passenger transport, featuring a semi-submerged central hull equipped with transparent windows for underwater viewing. The vessel accommodates up to 48 passengers comfortably seated both inside the central hull and on the deck. The entire deck is shaded by a rigid fiberglass hardtop.

Technical Specifications

  • Overall lenght 12,00 mt – 39,40 ft
  • Max beam 3,75 mt – 12,30 ft
  • Draft 0,80 mt – 2,60 ft
  • Design category CE C-48
  • Passenger capacity 48 pax
  • Engine Opt A: 2 x inboard diesel 42 hp sail drive
    Opt B: 2 x outboard 60 hp
  • Fuel tank 2 x 100 lt each
  • Design PT Wahana Air Indonesia
  • Construction Sandwich – polyester resin – glass
  • Glass bottom boat

    ENGINE – PROPULSION

    Propulsion

    Opt A: 2 x inboard diesel 120 hp

    2 x sterndrive

    2 x fixed pitch propeller

    Hydraulic steering

    Control panels and levers on the dashboard

    DECK SET UP

    Semi-closed cabin at bow

    Helm station – Fiberglass side bulwarks

    Wooden benches with integrated lockers

    Hard top

    Boarding area at bow

    CENTRAL HULL SET UP

    Access ladder at stern

    10 mm acrylic windows

    Wooden benches

    Water collection tanks

    Battery compartment

    SIDE HULLS SET UP

    Engine rooms

    Fuel tank compartments Battery compartments

    ACCESSORIES

    Mooring cleats

    Swim platforms at stern

    2 x stainless steel ladders

    Stainless steel handrails

    Helm console – Captain’s bench

    Fuel filler

    Water filler

    2 × engine compartment access hatches

    Anchor locker

    Windlass

    Fender

    Glass bottom boat
    Glass bottom boat

    EXTERIOR

    Hull paint: Hull and deck in gelcoat

    Deck: Composite with non-slip

    NAVIGATION

    Navigation lights

    Compass

    Horn

    ELECTRIC SYSTEM

    DC electrical power system

    12V system and wiring

    12V control panel

    Engine start batteries

    Utility batteries – Battery switches

    SYSTEMS AND PIPING

    Fuel system

    2 x 120 lt fuel tank

    Fuel filters

    Bilge system

    2 x automatic bilge pump

    Hand bilge pump

    Pipes and valves

    Firefighting system compliant with RINA regulations

    2 x automatic fire extinguisher in engine rooms

    Fire extinguisher