BoatsSchock 40

Schock 40

Masthead Sloop · Fin Keel · First built 2000

The first production boat to feature the patented CBTF canting keel system, offering a high power-to-weight ratio

Designed by DynaYacht, built by W. D. Schock Corp.

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

See her sail

The Schock 40, on the water

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

Footage from BoatHowTo

Is it for you?

Character

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

LivelySea-kindly

Her light displacement on a narrow beam gives 14 — a quick, lively motion that feels every wave.

Comfort ratio 14
CoastalBluewater

2.09 — right around the 2.0 line, the edge between coastal and offshore.

Capsize screening 2.09
LightHeavy

73 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 73
EasygoingPowered-up

29.9 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 29.9
TenderStiff

26% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 26%

Light and lively — happiest day-sailing and coastal-hopping in settled weather.

  • Lighter than ~96% of boats her size on file
  • Draws more than ~96% of boats her size on file
  • Narrower than ~91% of boats her size on file

Compared with 2742 boats of the same type within a quarter of her length.

What the fleet has seen

The Schock 40, as the fleet has seen it

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

The Schock 40 is a 12.2-meter masthead sloop, designed by DynaYacht and built by W. D. Schock Corp. since 2000. It features a fin keel, a 3.0-meter beam, a 2.4-meter draft, and displaces 3175 kg. This model is the first production boat to incorporate the Canting Ballast Twin Foil (CBTF) system, a DynaYacht-patented design intended to reduce ballast by 50% compared to other boats of its size.

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
Ballast / displacement
25.7%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
29.9
Displacement / length
72.9
Comfort ratio
13.8
Capsize screening
2.09
Hull speed
7.9 kn
Pounds / inch immersion
1251
Hull
Hull type
Fin Keel
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 2000
Units built
10
Designer
DynaYacht
Builder
W. D. Schock Corp, Schock W.D

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.

Pogo 4012.18 mSame hull familyNear-identical lengthA pioneering Class 40 racer with a 3-metre draft and a 4,800kg displacement designed for high-speed offshore competition
Neo 430 Roma - The Fastest Cruising Sailboat in the World?7:05from Practical Sailor
Bavaria Yachts 39012.15 mSame hull familyNear-identical lengthA 12-meter fractional sloop originally built for the charter trade, featuring a 37.5% ballast ratio for coastal stability
Why Does A Sailboat Keel Fall Off?3:09from Practical Sailor
Jpk 105012.15 mSame hull familyNear-identical lengthA Jacques Valer design optimized for IRC racing, featuring a high sail-area-to-displacement ratio and dual rudders
TEST: JPK 1050from SEILmagasinet
J Boats J/12212.19 mSame hull familyNear-identical lengthA high-performance fractional sloop designed by Alan Johnstone, balancing a stiff 37% ballast ratio with a versatile interior
Lydia Mullan // Seamanship & the Sinking of Alliance4:29from 59° North Sailing
Arcona 41012.20 mSame hull familyNear-identical lengthA 2009-era fractional sloop with a 2.2-meter draft and a displacement-to-ballast ratio optimized for agility
Arcona 410 Hybrid0:21from SEILmagasinet
Bavaria Yachts 3912.15 mSame hull familyNear-identical lengthA 12-meter fractional sloop with a 2.0-meter draft and a 37.8% ballast ratio, built for stability and cruising speed
IS PUERTO RICO THE UNITED STATES AND NOT AN INDEPENDENT COUNTRY? | Ep. 15 - Chez Team20:41from Chez Team

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.

Schock 41A William E. Cook-designed masthead sloop with a high sail-area-to-displacement ratio built for performanceSchock 25A lightweight fractional sloop designed by Seymour Paul with a high sail area-to-displacement ratio for spirited racingSchock 35An evolution of the Santana 35 featuring a taller masthead rig and deeper keel, designed for high-performance sailingSchock 34 PCA Nelson/Marek-designed performance cruiser featuring a masthead rig and a high sail-area-to-displacement ratio

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