Broker Comments

Some sailboats demand constant attention. Kahuna was designed to let you enjoy the journey.

The Nonsuch 30 Ultra has earned a loyal following because it delivers many of the comforts and accommodations normally associated with significantly larger yachts while retaining the simplicity and operating costs of a 30-foot boat. The open cockpit is large enough for family and friends to spread out comfortably, while the wide side decks and uncluttered sidedecks make moving about the vessel easy and secure.

The signature cat rig is one of the most practical sailing systems ever developed for cruising sailors. With a single large mainsail, unstayed mast, and wishbone boom, sail handling becomes remarkably straightforward. Tacking requires little more than turning the wheel, reefing can be accomplished quickly, and the absence of headsails and complicated standing rigging reduces both workload and maintenance. Whether sailing solo, as a couple, or with guests aboard, the boat remains manageable and enjoyable.

Kahuna's electric propulsion conversion enhances this experience even further. The Quiet Torque motor provides smooth, nearly silent operation, while the large battery bank, solar charging, regenerative capability, and portable generator support a modern cruising lifestyle. The addition of a stern thruster makes docking and close-quarters maneuvering far less stressful than most vessels in this size range.

For Florida cruising, the custom cockpit hardtop may be one of the boat's most appreciated upgrades. It transforms the cockpit into a comfortable outdoor living area, providing protection from intense sun and summer weather while maintaining excellent visibility in all directions.

For sailors looking for something different from the typical production cruiser—a vessel that emphasizes comfort, simplicity, and innovation—Kahuna presents a rare opportunity.

Accommodations

The Nonsuch 30 Ultra is renowned for providing interior volume typically associated with much larger sailboats. The nearly 12-foot beam, wide cabin trunk, and efficient layout create a bright and comfortable living environment ideal for weekend cruising or extended stays aboard.

Features include:

• Spacious main salon with port and starboard seating areas

• Convertible dining area

• Forward owner's cabin with double berth

• Enclosed head compartment

• Separate shower area

• Dedicated navigation station

• Large galley with abundant storage

• Excellent natural light and ventilation

• Multiple opening ports and hatches

• Ample storage throughout the vessel

• Approximately 6' 2" of headroom

Mechanical

• Quiet Torque 10kW electric propulsion motor

• Electric propulsion control system

• Stern thruster system

• Direct shaft drive

• Regenerative charging capability while sailing

• Portable Ferman generator

• Isotemp Spa marine water heater

• Manual marine head

• Freshwater pressure system

• Electric and manual bilge pumps

• Emergency tiller

Electrical

The electrical system has been upgraded to support modern electric propulsion and onboard comfort systems.

• 48V 415Ah Full River AGM battery bank (8 x 6V batteries)

• Battery bank rated for 500 cycles at 50% discharge

• Victron Energy Quattro 48/3000 inverter/charger

• Shore power charging capability

• Solar charging system

• Sailing regeneration charging capability

• Portable generator charging capability

• 110V AC electrical system

• DC distribution panel

• LED interior lighting

• Cockpit lighting

• GFCI-protected outlets

Recharge Sources:

• Shore power

• Solar panels

• Regenerative charging under sail

• Portable generator

Electronics

• Garmin GPSMAP chartplotter

• Garmin GPS 942XS chartplotter

• Raymarine p70s/p70Rs autopilot controller

• Icom IC-M59 VHF radio

• Richie magnetic compass

• Navigation lights

• Anchor light

• Windlass wireless remote

Sails & Rigging

The defining feature of the Nonsuch 30 Ultra is her innovative cat rig configuration.

Unlike conventional sloops, the Nonsuch utilizes a single large mainsail on an unstayed mast with a wishbone boom. The result is exceptional visibility, simplified sail handling, fewer maintenance requirements, and effortless tacking.

• Free-standing aluminum mast with integrated mainsail track system.
• ​Wishbone boom
• ​Fully battened mainsail with two reef points. This sail is still crinkly! Excellent condition. 
• New (2026) Mack Pack sail bag by Mack Sails
• ​Simplified sail controls
• ​Electric Lewmar winch on cabintop (for main halyard)
• ​Keel-stepped mast
• ​Aluminum spars
• ​Self-tending sailing characteristics
• ​Ideal for single-handed and short-handed sailing

Hull and Deck

• Fiberglass hull construction

• Custom fiberglass cockpit hardtop

• Large open cockpit with excellent seating capacity

• Wide side decks

• Stainless steel bow pulpit and stern rail

• Anchor windlass with wireless remote

• Cockpit storage lockers

• Swim access ladder

• Navigation lighting package

• Teak cockpit seating

• Dock lines and fenders included

• Stern thruster installation

• Easy movement throughout the vessel

Construction

• Builder: Hinterhoeller Yachts

• Designer: Mark Ellis / Gordon Fisher

• Model: Nonsuch 30 Ultra

• Built in St. Catharines, Ontario, Canada

• Fiberglass hull and deck construction

• Keel-stepped free-standing mast

• Lead ballast keel

• Proven Canadian-built cruising design

• Recently rewired and replumbed

• Hull Identification Number: ZHYN3391L687

Specifications

Year: 1987

Make: Nonsuch

Model: 30 Ultra

Vessel Name: Kahuna

Location: St. Petersburg, Florida

Asking Price: $45,000

LOA: 30'4"

LWL: 28'8"

Beam: 11'11"

Draft: 4'0"

Displacement: 11,500 lbs

Ballast: 4,400 lbs

Mast Height: 55'

Engine: Quiet Torque 10kW Electric Motor

Battery Bank: 48V 415Ah Full River AGM

USCG Official Number: 1294143

Hull ID: ZHYN3391L687

Disclaimer

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct their agents or surveyors to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Co-Brokerage

Preferred Yachts offers this listing on a 50-50 split with corresponding Florida licensed brokerages. Brokers unlicensed in Florida must contact listing broker to make arrangements that comply with Florida law.