Vessel Summary
Hull Configuration:
Manuf. Length:
Draft (Boards up):
Displacement (Light):
Cruise speed:
# of Cabins:
Fuel Capacity:
Morrelli & Melvin / Gunboat 66
Morrelli & Melvin
66' (21.1 m)
62’ (18.9 m)
2.2' (.7 m)
37,078 lbs (16.818 kg)
8.5 knots (Power)
150 g
Santa Barbara, CA
Year Built:
Hull Material:
Mast Height Clearance:
Draft, (Boards down):
Displacement (Full):
Max speed:
Water Capacity:
Price (Private Sale):
Morrelli & Melvin 66
28.3’ (8.6m)
95.2’ (29.03 m)
15.78’ (4.8 m)
40,298 lb ( 18,278 kg )
30+ knots (Sail)
500 mi.
200 g
Extreme H2O is the lightest, fastest Gunboat 66. The boat features a fully integrated hybrid system, “C” foils, “T” rudders,
Southern Spars rotating wing spar, aft beam traveler, retractable propeller drives, tiller steering for racing, push button
mainsheet controls at all steering stations
State-of-the-art Morrelli & Melvin foils and a powerful sail plan with Mast Head the screacher sheeting
into the forward cockpit for light air upwind performance and a full inventory of downwind furling sails
make “H2O” and extremely capable catamaran in large crossover of wind conditions. Speed and
performance did not sacrifice the luxury features of this cruising catamaran - which can realize up to
30 knot sailing speeds.
The fully integrated hybrid system will allow you to depart the dock, enjoy a day of sailing and return
to the dock without ever having to listen to a diesel motor. Better yet, you can enjoy a tropical night
at anchorage with 30,000 BTU of air-conditioning without the noise of a generator.
Completed in 2015 – “Extreme H2O” has already raced to Mexico and Hawaii and back and is fully
serviced with a new 3Di raw racing mainsail a new R1 reacher and ready for racing and cruising in the
Caribbean in 2017
Design Philosophy:
“Extreme H2O” is the first Gunboat 66 to place an emphasis upon performance cruising
catamarans. A product of the Morrelli & Melvin Design & Engineering design office, “H2O” was
optimized for performance throughout a wide range of wind conditions. You can enjoy sailing at
over 9 knots of boat speed in only 8 knots of wind on “H2O” which is unheard of on other GB66’s
This powerful sail plan is managed with advanced sail handling systems in both the forward cockpit
with 4 high speed hydraulically driven winches and at all steering stations with push button mainsail
controls. In addition, the mainsheet traveler is curved along the length of the aft beam for optimum
mainsail control and safety The running sails are all controlled through bottom up or top down
furling and the mainsail is reefed with state of the art locks at the head and clew.
Design evolution: Morrelli & Melvin's designed the “C” foils to provide up to 4,000 kg of vertical lift
and the “T” rudder to reduce pitching when the wave angle is forward of the beam. The “T”” foils are
removable while boat is in the water so the boat can be easily configured for optimum speed and
“Extreme H2O” began construction in South Africa by Gunboat. After the Gunboat closed its
doors, the boat was moved to the US and completed by Westerly Marine - a custom boat
builder, founded in 1970, and located in Santa Anna, California - specializing in Carbon Fiber
Performance Vessels. Over 56,000 hours were required to complete the boat to certified
Hulls: Carbon inner skin and outer skin / 25mm Corcell Sandwich
Cabin: Carbon inner and outer skin / Nomex honeycomb and Corcell sandwich
cabin soles: Carbon / Nomex honeycomb sandwich
All secondary taping Carbon fiber / Epoxy and post cured
All laminates vacuum-bagged and post cured.
Layout & Accommodations (see downloadable GA on website)
4 Double staterooms in hulls plus port forward crew quarter. 3 full baths, including carbon washing
basin and carbon counter tops with stand up shower.
Port Forward Compartment: gear and sail sail storage
Stbd Forward Bow Compartment: large sail locker can fit the entire sail inventory on shelves.
Large dinette to port. Seats 10 - with storage underneath. Additional settee area with coffee table,
drop down for day bed. Elevated navigation area, forward.
U shaped Galley (“Up”) – 5 burner Gaggenau stove, 3 refrigerator drawers and 1 freezer with icemaker, built in Miele Mtouch whole bean coffee system, Miele microwave and gas oven.
Flat screen TV on electrical lift disappears in the captains seat for a modern interior look.
The interior his modern with horizontal mahogany grain veneer and bamboo floors with
carbon and Corian countertops that are attractive, but practical, in long distance cruising
and racing.
3 x refrigerators
1 x freezer drawer with ice maker
Gaggenau 5 burner stove
Double stainless sink with Grohe facet
Miele whole bean coffee system
Miele microwave
ENO gas oven
Deck & Equipment
All Hatches by Lewmar
All Portlights by Gebo
Longeron mounted Tack line winch: manual Harken 60.2
Forward cockpit Winches: all hydraulic
Primary Winches: Harken 990.3 ST
Secondary Winches: Harken 60.3 ST
Aft cockpit winches: used for Traveler and davit lines: Harken 60.3
Ground tackle:
1 x spade S200 Anchor
1 x 100ft Chain and 200ft ¾" Rode
x Lewmar V5 hydraulically driven
Anchor Winch
1 Danforth day anchor
Falcon 450 RIB with center console with 30HP Honda Engine
Safety / Liferafts:
– 2015 Ocean UltraLite 10 – PAX meeting all ISO requirements, packed in carbon hard pack
& mounted on aft beam
-JonBuoy bulkhead mounted recovery module with remote release at nav station and AIS
location transmitter
- 10 qty KRU sport pro ISO manual inflation PFD/harnesses each equipped
- 10 qty personal AIS / DSC transmitter attached to KRU PFD
- 10 qty personal wide beam laser attached to KRU PFD
- 2 qty ACR EPIRB’s (one on boat and one in life raft grab bag)
- All Category 1 required safety gear for multihulls per SER requirements
- 1 Oceandata system Upside Up anti capsize with mainsheet release and all the parts for a
forward cockpit release system. --Manual release buttons at each helm location and forward
Electronics & Navigation
WTP3 processor
Forward cockpit - with 4qty 20/20 displays and 2 qty race displays all mounted on mast
Main cabin 1qty graphic display at Nav station and 1 qty graphic display in inside helm
Aft cockpit 4 qty race displays
1 H5000 barometer module
1 H5000 3D motion sensor
1 BB&G 57” mast wand
1 celesco String Pot for mast rotation sensor
1 celesco string Pot for rudder position
1 Simrad GS70 GPS
1 Furuno GP33 GPS
1 Furuno FA 150 AIS transponder and display
1 Icom M400BB VHF with integrated AIS antenna
2 Standard HX290 protable VHF
1 B&G 4G Radar
1 F250 Sat Com
2 Naauticomp 15” sunlight Monitors
2 Intense PC, window 7, RAM 8GB, Core 1.8GHz
2 copies of Expedition software
1 copy of Deckman software
2 NavNet 3D Vector MapMedia US West Coast and Hawaii Charts
1 Globe Surfer Quad band 3G
Cel phone receiver
1 Wave Wifi booster for onboard wifi
1 B&G H5000 Autopilot Computer & Controller located at interior helm
1 Raymarine Type 3 linear drive hydraulic drive
1 headstay load cell
2 shroud load cell
1 mainsheet load cell
C-Zone CAN-Bus control for non-critical electrical systems
Electrical, Power & Equipment
Hybrid system for Extreme H2O; see PDF schematic under Technology>Hybrid
2 4 cylinder Volvo D2-40 20kW generators, output of 260 – 320 VDC
2 AC High efficiency Fukuta motors with 25kW continuous and 40kW peak power, 3 phase, liquid cooled
2 AC motor Traction Controller, liquid cooled, DC input, AC motor output
1 LiFePo4 Battery Bank, 288 volt nominal, 28.8kWh, 11 enclosures, 8 cells per enclosure
1 4kW AC/DC shore power battery charger
2 250 - 320 VDC to 24 volt charger
1 100 – 400 VDC to 12 volt charger
1 250 – 320 VDC to 230 VAC inverter – liquid cooled to run all appliances (AirCon, microwave, refrigeration)
2 x 20 Gal Torrens Water heater (Heated by engine and AC)
110VA C Sockets in all Cabins and Heads
1 x 100 gallons Water 2 x 75 gallons Fuel
3 x 20 gallons Holding Tank
1 15 gallon sweet water tank
2 18 gallon hot water tanks AC or engine heated.
1 Spectra Cape Horn water maker plumbed to a 15 gallon stand alone sweet water tank
All Sails by North Sails:
Mainsail #1: 186m2, 3Di, 760i (37,200 dpi) with 2 offshore plys, 3 reefs, 6 full C-Tech carbon battens
Mainsail #2 (new Jan 16) 193m2, 3Di, 870 RAW, 2 offshore plys, 3 reefs, 5 full C-Tech carbon battens
Fractional screacher 106m2, 3Di, 760i, RAW, 19,600 dpi, on vectran luff cable
Mast Head screacher 150m2, 3Di, 760i RAW on vectran luff cable for bottom up furling
Solent: 72m2, 3Di 760i (39,800 dpi), Hank On,
Staysail: 41m2, 3Di 760i (35,000 dpi) roller furling on Vectran luff cable
MH0 reacher: 265m2, 3Di 760, 16,800 dpi, internal aramid luff cable for bottom up furling
R1 (New Jan 16): 3Di 87 Raw, 8820 Dpi, internal luff cable, top down furling
A3: 350m2, laminate, designed for external aramid luff cable for top down furling.
A4: 400m2, SK150, designed for external luff aramid luff cable, top down furling
A1: 358m2, NDPO 69/49 (polyester) designed for external aramid luff cable, top down furling
Fractional reacher: 186m2, 3Di, 16,800 dpi, internal aramid luff cable bottom up furling
Mast, Boom, Forward Beam and Longeron Prepreg Carbon by Southern
Spars New Zealand,
Standing Rigging is EC6 by Composite Rigging,
Running backstay are aramid
Energy Efficiency:
All of Extreme H2O power requirements such as refrigeration, instrumentation, lighting, winches are run easily run from
the battery bank. The large inverters allow use of Aircon throughout the night without the use of generators. The boat
has a battery operated powering range of 45 minutes without the use of generators.
The details of this vessel are offered in good faith but cannot guarantee or warrant the accuracy of
this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his
surveyors to investigate such details as the buyer desired validated. This vessel is offered subject
to prior sale, price change, or withdrawal without notice. Photos may not properly reflect the
current condition of the actual vessel offered for sale
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