S/V Rollercoaster is a Brunswick, GA, US based 2007 Lagoon 420 For Sale By Broker. Responses to inquiries may come from a broker who is representing the owner as a fiduciary. This owner requires financial settlement only. No trades.
Lagoon 420 | Extensively Modified Performance-Oriented Cruising Catamaran
Rollercoaster is a highly customized Lagoon 420 that stands apart from any standard example on the market. Designed for owners who value the legendary comfort, layout, and livability of the Lagoon 420 but want significantly improved offshore performance, motion, and safety, this vessel has undergone a professionally engineered hull transformation and comprehensive systems upgrades.
Following extensive research and consultation with experienced fabricators and naval design principles, Rollercoaster was lengthened both aft and forward, resulting in a dramatically increased waterline length, reduced pitching, improved speed, and a noticeably smoother motion in a seaway. All structural modifications were executed by Cracker Boy Boatworks (Riviera Beach, FL) and inspected during construction by a marine surveyor (survey documentation available upon request).
The result is a rare opportunity: a proven, comfortable cruising catamaran with the waterline length, reserve buoyancy, and wave-piercing characteristics typically found on much larger performance cats.
Rollercoaster is not a typical Lagoon 420. It is a thoughtfully re-engineered cruising catamaran that retains the exceptional interior volume, cockpit-galley flow, and liveaboard comfort the model is known for while delivering the speed, motion control, and offshore confidence of a much longer vessel.
For sailors seeking a proven, long-range cruising platform with meaningful structural upgrades, serious energy independence, and professional execution throughout, Rollercoaster represents a rare and compelling opportunity.
Specifications
| Name | S/V Rollercoaster |
| Make | Lagoon |
| Model | 420 |
| Year | 2007 |
| Type | Multihull Sailboat |
| Builder | Cnb-Lagoon-France |
| Designer | Van Petheghem/Lauriot Prevost |
| Construction | Fiberglass |
| Cabins | 3 |
| Heads | 3 |
| Galley | Up |
Dimensions
| Loa | 48.67 |
| Lwl | 48.67 ft |
| Beam | 24.67 |
| Headroom | 6 ft 7 in (2 m) |
| Draft | 4.17 ft |
| Mast Height | 62.5 |
Tankage
| Fuel Tanks | 2 (80 Gallons) |
| Water Tanks | 2 (80 Gallons) |
| Holding Tanks | 2 (25 Gallons) |
Performance
| Engines | 2 x Yanmar 3JH5E 40 HP |
| Engine Hours | 1811 / 1835 |
| Fuel Consumption | Range: 920.62 @ 2200 RPM |
| Generator | Onan 21.5 kW |
| Gen Hours | 4730 |
| Displacement | 33,000 pounds (Dry Weight) |
| Speed | 5 knots / 8 knots |
| Sails | Full batten large roach mainsail, furling headsail, Quantum A3 asymmetric spinnaker 1200 sq ft |
Layout Diagram
Inventory
Vessel Summary
- Lagoon 420 extensively modified performance oriented cruising catamaran
- Name Rollercoaster
- Professionally engineered hull transformation and systems upgrades by Cracker Boy Boatworks with marine survey inspection
- Lengthened both aft and forward to increase waterline length and improve offshore performance
Hull and Structural Modifications
- Extended transoms approximately 5 ft (1.5 m)
- Eliminates submerged transoms for reduced drag
- Substantially increases reserve buoyancy aft
- Greatly reduces hobby horsing in short period seas
- Improves boarding, swimming access, and deck space
- Finished with Plasdeck Cool Teak (cooler underfoot, no maintenance)
Extended Axe Bows
- Extended axe bows approximately 3 ft (1 m)
- Narrower wave piercing entry inspired by modern axe bow research
- Improves comfort and safety when motoring or sailing into head seas
- Enhances overall seaworthiness and offshore capability
Net Effect
- Approximately 49 ft effective waterline length
- Improved passage speeds
- More controlled motion in inlets and offshore conditions
Rig and Sail Inventory
- Full batten large roach mainsail (stock)
- Furling headsail (stock)
- Quantum A3 asymmetric spinnaker approximately 1,200 sq ft
Rigging
- Standing rigging replaced with Staylock Norseman fittings (2017)
Ground Tackle and Deck Hardware
- 60 lb Ultra anchor with flip swivel
- Fortress FX 85 secondary anchor
- 200 ft of 3/8 inch chain (2020)
- Lofrans Project 1000 windlass
- Custom heavy duty davits
- Dual swing arm lifting davits approximately 300 lb each
- Davits integrated into solar arch
Cockpit and Exterior
- Full cockpit enclosure
- Cockpit dodger
- Aft roll up cockpit shades
- Standard Lagoon cockpit cushions
- Exterior sun screen curtains
- Aft bench seating
- Kayak SUP carrier
Electrical and Energy Systems
- True off grid cruising design with highly efficient 24 volt lithium system
- Outback MATE network monitoring system
House Battery Bank
- 4 ReLion 10.2 kWh RB24V100 LiFePO batteries (2019)
- Total capacity 12.8 kWh at 24 volts
Solar
- 6 Kyocera 250 watt marine solar panels (1,500 watts total)
- Panels integrated into davits and bimini for shade and efficiency
- 2 Outback 60A MPPT solar charge controllers
Inverter and Charging
- Outback 3500 watt inverter charger
- Separate 120V 20A circuit for high draw galley appliances
Starting and Legacy Systems
- 3 Napa 775 starting batteries
- Original 12V system retained for lighting, windlass, winches, electronics
- Victron step down converters supply 24V and 12V efficiently
Generator
- Onan 21.5 kW generator approximately 4,730 hours
Plumbing and Utilities
- Spectra Catalina 300 watermaker
- Quick electric water heater
- Panda portable washer
- Electric hot water capability via solar under favorable conditions
Galley and Interior
- Isotherm CR130 refrigerator
- Isotherm CR90F freezer
- Dual burner induction cooktop
- Sunbeam microwave
- Edgestar icemaker
- Lagoon blue upholstery
- Lagoon standard curtains
Accommodations and Climate Control
- 3 cabin 3 head owners version layout
- Manual Jabsco heads
- Four zone air conditioning: three 8,000 BTU units and one 24,000 BTU unit
Navigation and Electronics
- Raymarine HD color radar (2017)
- Raymarine Axiom 12 chartplotter (2020)
- Raymarine SmartPilot autopilot hydraulic
- Raymarine AIS Class B transceiver
- Plastimo compass
- Bahamas Explorer charts
- Maptech charts for U S East Coast and Puerto Rico
- Two handheld VHF radios
- Helm steering wheel lock tied to autopilot hydraulic valve
Propulsion and Mechanical
- Twin Yanmar diesel engines with SD 50 saildrives
- Saildrive thrust bearings upgraded to non wearing needle bearings (2017)
- Gori 2 blade folding propellers
- Excellent sailing efficiency with reduced drag and line shedding design
Safety and Tender
- ACR Global EPIRB
- Walker Bay console tender with 30 HP Tohatsu outboard
Disclaimer
- Vessel details offered in good faith but not guaranteed or warranted; buyer should verify and instruct surveyors as desired; vessel offered subject to prior sale price change or withdrawal without notice
Exterior Photos
Deck Photos
Interior Photos
Cabin Photos
Head Photos
Other Photos
