BoatsNauticat 33

Nauticat 33

Masthead Ketch · Long Keel · 1967–1996

Siltala's inaugural production model, this long-keeled ketch offers a stable, high-comfort platform for extended cruising

Designed by W. Aarnipalo, built by Siltala Yachts.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Long Keel

See her sail

The Nauticat 33, on the water

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

Footage from cruisincasa

Is it for you?

Character

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

LivelySea-kindly

Her heavy displacement on a moderate beam gives 38 — a sea-kindly motion in a seaway.

Comfort ratio 38
CoastalBluewater

At 1.65 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.65
LightHeavy

344 — heavy for her waterline, built to carry stores and ride steadily.

Displacement / length 344
EasygoingPowered-up

11.4 — modest power for her weight; easygoing rather than lively, and happier with a breeze.

Sail area / displacement 11.4
TenderStiff

30% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 30%

Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.

  • Draws more than ~75% of boats her size on file

Compared with 436 boats of the same type within a quarter of her length.

What the fleet has seen

The Nauticat 33, as the fleet has seen it

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

The Nauticat 33 is a masthead ketch motor-sailer designed by W. Aarnipalo and built by Siltala Yachts from 1967 to 1996. It measures 10.1 meters LOA with a 3.2-meter beam, a 1.6-meter draft, and displaces 7824 kg. The Nauticat 33 was Siltala's first and most successful model, with a raised aft deck offered as an option starting in 1977. Aboard *cruisincasa*, a Nauticat 33 motorsailed from Egg Island to Little Harbor, Abaco, at approximately 6 knots, using a jib and mizzen for a downwind run.6:14 The crew maintained engine health by running the 90-horsepower engine at 1,200 RPM for most of the passage, increasing to 1,600 RPM to clear the engine.9:00 Another *cruisincasa* passage saw a 1986 Nauticat 33, named *Slacker*, complete a 231-nautical-mile trip from the Bahamas to St. Augustine, Florida, in 36 hours and 50 minutes, averaging 6.3 knots while motor-sailing through 10-to-12-foot following seas in the Gulf Stream.15:19 The vessel reached 11 knots surfing waves at night, and the crew used the pilothouse for protection during squalls.13:58 The crew noted the Nauticat 33's capability as a motor-sailer in heavy seas but struggled to achieve efficient pure sailing performance.16:40

The living fleet

Sailed by the fleet

The channels sailing this model, and where they were last seen.

Seen 3 times across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

On the water

The Nauticat 33 on video

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
29.9%
Rig & sail area
Rig
Masthead Ketch
Ratios
SA / displacement
11.4
Displacement / length
344.5
Comfort ratio
38.4
Capsize screening
1.65
Hull speed
7.1 kn
Pounds / inch immersion
1074
Hull
Hull type
Long Keel
Construction
Fiberglass
Production
Years built
1967–1996
Units built
1160
Designer
W. Aarnipalo
Builder
Siltala Yachts, Nauticat - Siltala Yachts

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.

Chris-Craft Sail Yacht 3510.67 mSame hull family0.6 m longerA long-keeled masthead sloop from the boards of Sparkman & Stephens, featuring a hull shared with the Caribbean 35
Cape George 319.45 mSame hull family0.7 m shorterA William Atkin-designed cutter with a heavy ballast ratio and long keel, built for stability and offshore comfort
Hans Christian 339.98 mSame hull familyNear-identical lengthA heavy-displacement cutter with a long keel, designed by Harwood Ives for comfortable, steady offshore passage-making
Hans Christian 3410.36 mSame hull family0.3 m longerA Robert Perry-designed cutter with a long keel, serving as the rare, original predecessor to the widely produced 36-foot series.
Rustler Yachts 3610.77 mSame hull family0.7 m longerA Holman and Pye designed masthead sloop featuring a heavy-displacement long keel hull built for offshore stability
Baba 3510.62 mSame hull family0.5 m longerOriginally marketed as the Flying Dutchman 35, this heavy-displacement cutter offers a stable, long-keel platform

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

Keep asking

The fleet has more to say

Search what's been said about the Nauticat 33, or ask a specific question — the answer comes back written out, with links to the moments it draws on.

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