Oyster Marine 745

BoatsOyster Marine 745

See her sail

The Oyster Marine 745, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Reversing Entropy

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LivelySea-kindly

Her moderate displacement on a narrow beam gives 52 — a heavy, notably soft motion offshore.

Comfort ratio 52

CoastalBluewater

At 1.58 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.58

LightHeavy

187 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 187

EasygoingPowered-up

19.9 — plenty of sail for her weight; lively and quick to respond.

Sail area / displacement 19.9

A capable offshore cruiser with an easy motion when the sea gets up.

Heavier than ~98% of boats her size on file
Draws more than ~81% of boats her size on file
Beamier than ~94% of boats her size on file

Compared with 176 boats of the same type within a quarter of her length.

What the fleet has seen

The Oyster Marine 745, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The Oyster Marine 745 is a 22.7-meter fractional sloop designed by Rob Humphreys, built by Oyster Marine since 2014. It features a fin keel with a bulb and dual rudders, displacing 53,957 kg. The hull is foam-cored, and the standard draft is 3.1 meters, though an optional keel/centerboard configuration allows for a draft of 2.1 meters with the board up and 4.68 meters with it down. While marketed as an "ultimate adventure machine" for Arctic exploration, its high-aspect-ratio rig, bolt-on keel, and unprotected rudders are less suited for ice-prone high-latitude navigation than vessels like those from Garcia, Borealis, or Pelagic.0:11 Aboard Reversing Entropy, the owners plan a circumnavigation including Svalbard and northern Norway, despite having limited sailing experience and intending to employ professional crew.8:15

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen once across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions

Weights

Rig & sail area

Rig

Fractional Sloop

Ratios

SA / displacement

19.9

Displacement / length

187.1

Comfort ratio

51.9

Capsize screening

1.58

Hull speed

10.9 kn

Pounds / inch immersion

4553

Hull

Hull type

Fin w/bulb & dual rudders

Construction

Fiberglass

Production

Years built

First built 2014

Designer

Rob Humphreys

Builder

Oyster Marine

Boats like this, on the water

More boats like her, on the water

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Swan 7623.26 mSame hull family0.5 m longerA Sparkman & Stephens masthead ketch built by Swan, offering a heavy-displacement, stable platform for blue-water cruising

Atlantic ADVENTURE! - Annapolis Boat Show & A few Other Surprises !!5:12 from Living For Sail

Oyster Marine 8224.97 mSame hull family2.2 m longerA 25-metre cutter featuring a fin keel and spade rudder, engineered for an 11-knot hull speed and high-performance passage making

[OFF MARKET] Oyster 82 (BILL AND ME) - Yacht for Sale - Perfect for Crossing Oceans (1)7:42 from Berthon International

Hallberg-Rassy 6922.22 mSame hull family0.5 m shorterA German Frers-designed flagship featuring a fractional rig and dual rudders, built for high-comfort blue water cruising

Hallberg-Rassy 69. "Bluewater Cruiser of the Year" 2024. A yacht delivery from France to Sweden.3:09 from Halcyon Yachts - International Yacht Delivery

Swan 7724.01 mSame hull family1.3 m longerA 24-metre masthead sloop built from 1992 to 2003, featuring a high comfort ratio for long-range offshore cruising

Nautor Swan 77 “INVICTUS” Yacht for Sale | Signiﬁcant Optional Upgrades | Tour with Simon Turner from Berthon International

Nicholson 7021.34 mSame hull family1.4 m shorterA 21-metre masthead ketch with a 50-tonne displacement, built for serious long-range cruising in comfort

6 Nov 2024 Fillets to fix side lockers & Bonus2:22 from Sven Yrvind

Cnb 7823.93 mSame hull family1.2 m longerA 2022 launch featuring a deep 3.5-metre draft and a high comfort ratio for stable, long-range blue water passages

Genoa International Boat Show 2023 Special0:51 from SVN solovelanet

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

Oyster Marine 675A 21-metre masthead sloop featuring a deep 2.95-metre bulb keel and a high sail-area-to-displacement ratio for speed Oyster Yachts 595A 19-metre cruiser with a high comfort ratio of 40.21, engineered for stable, long-distance passage-making Oyster Yachts 495A modern Humphreys-designed fractional sloop featuring a high-stability hull with dual rudders for offshore control Oyster Marine 575A Rob Humphreys-designed masthead sloop built for offshore passage-making with a high sail-area-to-displacement ratio Oyster Yachts 565A Humphreys-designed bluewater cruiser featuring a high-performance fractional rig, dual rudders, and a bulb keel Oyster 655A Rob Humphreys-designed cutter built for high-performance bluewater cruising with a powerful sail area-to-displacement ratio

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