- Cruising Speed: 10 Knots
- Maximum Speed: 22 Knots
- Beam: 13' 0''
- Hull Material: Fiberglass
- Max Draft: 2' 0''
- Cabins: 2
- Heads: 1
Boarding Sea-Biscuit 20 is simple and inviting, thanks to dual side gates that lead you onto a teak-clad aft deck. Here, you’ll find safe passage to the side decks, twin deck hatches that reveal a roomy lazarette, and a clever fold-down transom that extends the deck into a swim platform—ideal for lounging or water access.
Step inside through the sliding aft door, and the interior immediately impresses with its bright, airy feel. Expansive windows flood the salon with natural light, while a mix of golden teak finishes, dark-toned flooring, and Rugana upholstery strike a perfect balance of warmth and modern style.
The portside galley is both practical and attractive, featuring Kerrock counters, an induction cooktop, built-in microwave, and abundant storage. A full refrigerator and freezer sit opposite
Boarding Sea-Biscuit 20 couldn’t be easier with side gates leading onto the teak-trimmed cockpit. Here you’ll find safe steps forward along both side decks, twin hatches opening to a deep storage lazarette, and a transom that folds down to create either an expanded deck space or a generous swim platform.
Through the sliding glass door, the salon opens up with a bright, contemporary feel. Expansive windows wrap the space in light, while the combination of rich wood veneers, contrasting dark flooring, and comfortable Rugana upholstery give it a welcoming, upscale vibe.
The galley is thoughtfully placed to port and fitted with Kerrock countertops, an induction cooktop, built-in microwave, and abundant cabinetry. Opposite sits a full-size refrigerator/freezer. One of the boat’s standout features is the wide aft window that flips open with a folding counter, creating an effortless pass-through to the cockpit—perfect for entertaining. Ahead, the convertible dinette easily transitions from dining table to coffee table, or even drops down for an extra berth.
Starboard cabinetry provides extra storage and houses a hidden pop-up TV, leading forward to the helm. The helm station is equipped with a two-person seat, side deck access door, modern navigation suite, and intuitive controls. Excellent sightlines are further enhanced by a large sliding sunroof with shade.
A couple of steps down reveal the accommodations. The guest cabin offers either twin singles or a full double, with lockers and opening ports. The head is arranged with an electric toilet, vanity, and separate shower, accessible from both the companionway and the owner’s cabin. The master stateroom provides flexibility with a berth that can be arranged as a V-berth or an island queen, along with ample storage and natural light from overhead and side ports.
Outside, wide side decks and sturdy handrails lead forward to the bow, where a large sun lounge with adjustable backrests and a Bimini shade makes for an ideal relaxation spot. The foredeck sun pad and windows are protected with custom covers. On the cabin top, six integrated solar panels supply continuous charging to complement the boat’s efficient hybrid system.
But what truly makes this vessel special is her name. Sea-Biscuit 20 was christened in honor of the owner’s father, a New York Giant in 1938, whose nickname was “Sea Biscuit” and whose jersey number was 20. That personal legacy now carries forward in a yacht that blends heritage, style, and modern innovation.
Denison Yacht Sales offers the details of this yacht in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of this boat for sale. A yacht buyer should instruct his yacht broker, or his boat surveyors, to investigate such details as the buyer desires validated. This yacht for sale is offered subject to prior sale, price change, or withdrawal without notice. This boat may be listed with another yacht broker.
The cockpit of Sea-Biscuit 20 is where mornings start and evenings wind down. With teak underfoot and space to spare, it’s as comfortable for a sunrise coffee as it is for happy hour with friends. Drop the transom and suddenly you’ve got a private beach club—dive in, swim off the platform, or just dangle your feet in the water with a cold drink in hand. And when dinner’s ready? The galley’s aft window turns into your personal serving hatch, so you can keep the conversation flowing without ever leaving the party.
Step inside the heart of Sea-Biscuit 20 and you’ll forget you’re on a 40-footer—this feels more like a floating condo with a better view. The salon and galley flow together in one big, bright space wrapped in windows, so you’re always connected to the water around you.
The galley sits aft and to port, fully outfitted for real cooking at sea. You’ve got Kerrock countertops, an induction cooktop, a built-in microwave, a full-size refrigerator and freezer, and plenty of cabinetry to stash provisions for a weekend—or a month. The aft window flips open with a folding counter, turning the galley into your own dockside café where you can slide plates right out to the cockpit.
Forward, the dinette is the definition of versatile: breakfast nook in the morning, card table by afternoon, and with a quick adjustment it drops down to create an extra berth when company stays the night. To starboard, additional cabinetry hides away a pop-up TV, so movie nights are just a button-press away. Open the sunroof overhead, pour a glass of something cold, and you’ve got a living space that feels equal parts modern loft and waterfront lounge.
At the helm, Sea-Biscuit 20 gives the captain a true command center. Twin Raymarine AXIOM 9” touchscreen chart plotters with built-in GPS and Wi-Fi deliver full navigation control, while a DST800 smart transducer feeds accurate depth, speed, and water temperature. Long runs are made easy with the Raymarine EV-200 hydraulic autopilot system and P70R color control head, while the Raymarine 4kW Quantum radar ensures reliable visibility in all conditions.
A Victron energy management display is also integrated at the helm, giving real-time oversight of batteries, charging, and power usage—so you know exactly how the hybrid system and solar array are performing at a glance.
Connectivity and entertainment are equally impressive. A Glomex Webboat Wi-Fi dome keeps you online whether cruising or at anchor. In the salon, a remote-controlled LED Smart TV slides out at the touch of a button, perfect for movies or streaming. The Fusion Apollo MS-RA770 entertainment system anchors the audio, offering AM/FM, Wi-Fi, and Bluetooth streaming, with AUX/USB inputs and four Fusion waterproof speakers split between cockpit and salon.
With a two-person helm seat, side deck access door, overhead sliding sunroof, and wrap-around visibility, this helm station is more than just functional—it’s a modern command bridge designed for confident cruising and easy enjoyment.
The master stateroom aboard Sea-Biscuit 20 is more than a place to sleep—it’s your private retreat after a day on the water. The clever berth system lets you choose: spread out in a full island queen when you want hotel-style comfort, or split into a roomy V-berth when you need flexibility. Sunlight pours in from hull windows, ports, and an overhead hatch, so you wake up to natural light instead of an alarm clock. Plenty of lockers and cabinets mean you don’t have to travel light, and with direct access to the head and shower, morning routines stay easy. It’s cozy enough to curl up with a book, bright enough to feel open, and versatile enough to remind you this is a yacht built for real living, not just quick getaways.
The guest stateroom is proof that visitors don’t have to “rough it” on Sea-Biscuit 20. Flexible berths convert from twin singles to a comfortable double, making it easy to host friends, kids, or grandkids. A hanging locker and clever storage nooks give everyone space for their gear, while opening ports let in natural light and fresh air. Whether it’s a weekend stay or part of a longer cruise, this cabin feels less like a spare room and more like a cozy hideaway—quiet, private, and comfortable enough that your guests might not want to leave.
On Sea-Biscuit 20, the head feels more like a mini spa than a boat bathroom. Bright, well-ventilated, and smartly laid out, it’s equipped with an electric marine toilet, a proper vanity with storage, and a full stand-alone shower—no more soggy curtains clinging to you while underway. Dual access from both the companionway and the master stateroom makes it easy for everyone to use without stepping on each other’s toes. Whether you’re rinsing off after a swim or getting ready for a night ashore, this head keeps the routine simple, comfortable, and refreshingly civilized.
The heart of Sea-Biscuit 20, the 2022 Greenline 40 Hybrid, is her efficient and reliable power package: twin Volvo Penta D3-220 EVC diesel engines, each delivering 220 horsepower. These modern, common-rail diesels strike the perfect balance between performance and efficiency, offering a smooth, quiet ride while keeping fuel burn under control.
With the push of the throttles, she effortlessly glides from a relaxed 7-knot trawler pace—perfect for sipping fuel and enjoying the scenery—to a brisk 22-knot top speed, giving you the flexibility to run when schedules or conditions call for it. This wide cruising envelope is part of what makes the Greenline 40 such a versatile boat, equally at home on long-distance passages or quick weekend getaways.
The Volvo Penta engines integrate seamlessly with the hybrid-ready generator system, ensuring a steady supply of onboard power whether you’re underway or anchored in a quiet cove. The generators work in harmony with the engines, charging the battery banks and keeping all onboard systems—from air conditioning to galley appliances—running efficiently without constant reliance on shore power. It’s a design that reduces fuel consumption, minimizes emissions, and makes extended off-grid cruising not only possible but enjoyable.
Together, this setup delivers a driving experience that’s both eco-conscious and stress-free—easy power at your fingertips, with the freedom to choose between long, leisurely cruising or pushing the throttles forward for a faster run.
Aboard Sea-Biscuit 20, the electrical system is as innovative as it is robust, designed to deliver true energy independence and comfort whether you’re plugged in, at anchor, or underway.
At its core are six high-output photovoltaic solar panels providing up to 1.8 kWp of charging power, managed through an advanced solar battery charge management system. This system continuously feeds the house bank—an impressive 600Ah service battery bank paired with a 12V/3000VA/120A automatic inverter/charger—to ensure you always have reliable, silent power on demand. The result is a permanent 110V system throughout the boat, meaning household-style power is available at all times without the constant hum of a generator.
Propulsion is supported by dual 14kW electric motors, seamlessly integrated with the diesel engines and hybrid generator for quiet, efficient cruising. In diesel mode, the 10kW generator not only supports propulsion but also tops off the battery banks, giving you extended range and flexibility no matter how you choose to travel.
Power storage is equally forward-thinking, with two 13kWh lithium-polymer batteries plus an upgraded 13.3kWh / 56V lithium pack for a combined capacity that rivals full-scale off-grid systems. Charging is quick and efficient thanks to a 90A automatic charger, while a 7,000W/8,000VA inverter ensures even the most demanding onboard appliances run seamlessly.
Every onboard system is powered electrically, from the LED lighting and entertainment systems to the bow and stern thrusters—a setup that eliminates the inefficiencies of mixed power sources. Dockside, a standard 30-amp shore cord connects you to the grid, though thanks to the hybrid and solar integration, you’ll rarely find yourself dependent on marina power.
This electrical package transforms the Greenline 40 Hybrid into more than just a boat—it’s a floating energy ecosystem, delivering silent running, reduced fuel burn, and the freedom to cruise sustainably with all the comforts of home.
Engine and generator hours are as of the date of the original listing and are a representation of what the listing broker is told by the owner and/or actual reading of the engine hour meters. The broker cannot guarantee the true hours. It is the responsibility of the purchaser and/or his agent to verify engine hours, warranties implied or otherwise and major overhauls as well as all other representations noted on the listing brochure.
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