Class CHeavy displacementCruiser/Racer

Brise De Mer 34

Le Geun-Hemedy · Jean-Marie Finot · 1978

Updated

The Brise De Mer 34 is a 10.25 m heavy displacement racing yacht designed by Jean-Marie Finot and built by Le Geun-Hemedy, first launched in 1978. It races in Class C.

Brise De Mer 34 - Jean-Marie Finot - Le Geun-HemedyP 11.82 mLOA 10.25 m

Length

10.25 m

33′ 8″

Beam

3.20 m

Draft

1.50 m

Displacement

5.3 t

Sail area

59 m²

This design does not carry a Race Edge. The speeds below still come from measured boats.

On the podium

Where a Brise De Mer 34 finishes when she goes racing.

0

Wins

0

Seconds

0

Thirds

1

Starts

Not enough races yet for a percentage — these are the counts so far. We keep collecting results, so this will fill in.

Read from 1 start by 1 boat between 2019, counting races with six boats or more.

Recent regattas

The latest events where a Brise De Mer 34 was on the start line, named as the organisers publish them.

  • Netherlands50 Mijl Doublehanded2019

Raced one we are missing?

Report a regatta

Round the buoys, or offshore

A short windward-leeward and a night at sea ask different things of a boat. Here is how this one does in each.

Round the buoys

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Not enough data yet: no races of 10 NM or less carry a published distance.

Offshore & coastal

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Not enough data yet: no races over 10 NM carry a published distance.

Who she races against

The designs a Brise De Mer 34 actually lines up with, most often first. The bar shows how those meetings ended.

Met too few times for a figure:

X-312 (1 meeting), Pogo 850 (1 meeting), Waarschip 101 (1 meeting), X-362 (1 meeting), Stadt 34 (1 meeting), First 31.7 (1 meeting), Spirit 32 (1 meeting), Winner 950 (2 meetings), Varianta 37 (1 meeting), X-34 (1 meeting), Dehler 34 (Judel/Vrolijk) (1 meeting), UFO 34 (1 meeting), Comfortina 38 (1 meeting), Dehler 31 (1 meeting), J/92 (2 meetings), F & F 95 (1 meeting), X-372 (1 meeting), Seascape 24 (1 meeting), X-99 (1 meeting)

Speed at every angle

The shape of this design's speed, drawn from the measured fleet. Pick a wind and watch it stretch.

36930°60°90°120°150°WIND8.2

Upwind VMG

4.42

43°

Beam reach

7.45

90°

Broad reach

8.16

135°

Downwind VMG

7.29

170°

Speed in knots at 20 knots of true wind. Green marks the angles that pay: the closest useful beat and the deepest run worth sailing.

Where it wins and where it pays

Every boat is judged against its own measurements — length, weight, sail area. The quicker those say it should be, the more it has to deliver just to break even. Going fast is not enough: it has to go faster than its own numbers promised.

This design earns its keep off the wind. A course with long free legs suits it better than a windward-leeward.

Where it gains

Its best ground is running deep in a working breeze, where it outruns what it looks like on paper, and by a margin worth having. It holds that advantage off the wind as well, so the gain is not down to one leg of the course.

Where it pays

It falls short cracked off in a strong breeze, giving away time it never gets back. That is weight that has to be driven rather than released.

Above the line it delivers more than promised and gains on the fleet. Below, it falls short. Move the wind: plenty of boats sit on one side in the light and the other when it blows.

True wind
Upwind-0.04 kn
Beam reach+0.14 kn
Broad reach+0.27 kn
Downwind+0.26 kn

Full width is 0.4 kn either way.

At 10 knots this design makes back more than its rating asks on the broad reach.

How fast is a Brise De Mer 34

Boat speed in knots, by true wind angle and wind strength.

Angle6 kn10 kn14 kn20 kn
Beat VMG2.974.044.394.42
52°4.636.006.456.54
60°4.946.236.676.80
75°5.146.436.897.15
90°5.126.546.997.45
110°5.166.707.277.76
120°5.026.657.318.06
135°4.566.397.188.16
150°3.925.866.897.83
Run VMG3.395.116.307.29

How they are set up

The range each sail spans across the fleet.

Mainsail24 m² – 29 m²
Headsail25 m² – 41 m²
Spinnaker72 m² – 85 m²

Roughly half carry a folding propeller. Crew weight is declared around 430 kg.

Rigging

Brise De Mer 34 rig and sail dimensions

A Brise De Mer 34 carries 12.20 m of mainsail hoist on a 3.55 m boom, a forestay 13.78 m above the deck. Typical figures across the 2 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP12.20 m11.82 – 12.58
Boom lengthE3.55 m3.20 – 3.90
Forestay heightIG13.78 m13.55 – 14.00
Fore triangle baseJ4.14 m4.11 – 4.18
Spinnaker hoistISP13.80 m13.55 – 14.05
Boom above deckBAS1.34 m1.27 – 1.40

Sails

Mainsail26.1 m²23.6 – 28.6
Headsail32.9 m²25.4 – 40.5
Spinnaker78.7 m²72.3 – 85.2

The spinnaker spreads widest of all — 72 to 85 m² depending on bowsprit and set-up. Before ordering a sail, read the figure on your own measurement record rather than the typical one for the design.