Class CSemi-displacementCruiser/Racer

Bonin 358

Bonin · Maurizio Cossutti · 2012

Updated

The Bonin 358 is a 10.86 m semi-displacement racing yacht designed by Maurizio Cossutti and built by Bonin, first launched in 2012. It races in Class C.

Bonin 358 - Maurizio Cossutti - BoninP 13.12 mLOA 10.86 m

Length

10.86 m

35′ 8″

Beam

3.54 m

Draft

2.18 m

Displacement

4.9 t

Sail area

71 m²

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

On the podium

Where a Bonin 358 finishes when she goes racing.

On the podium

17%

of 24 starts by 3 boats

Wins

8%

Wins8%2
Seconds8%2
Thirds0%0
Off the podium84%20

Read from 24 starts by 3 boats between 2019 and 2026, counting races with six boats or more.

Recent regattas

The latest events where a Bonin 358 was on the start line, named as the organisers publish them.

  • Greece32nd Cyclades Regatta - '262026
  • ItalyEST 1052026
  • ItalyRegata Brindisi-Corfù2026
  • Greece31st Cyclades Regatta2025
  • ItalyRegata Brindisi-Corfù2024

Raced one we are missing?

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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

—

Not enough data yet: 9 races of 10 NM or less carry a published distance.

Offshore & coastal

25%

of these races end on the podium

12 races over 10 NM

Who she races against

The designs a Bonin 358 actually lines up with, most often first. The bar shows how those meetings ended.

This design aheadRival ahead
First 36.717%ahead in 2 of 12 meetings, 12 races
X-3531%ahead in 20 of 64 meetings, 11 races
Italia 11.984%ahead in 1 of 24 meetings, 10 racesalmost always behind
M 370%ahead in 0 of 22 meetings, 10 racesalmost always behind
Italia 9.980%ahead in 0 of 22 meetings, 10 racesalmost always behind
First 40.729%ahead in 4 of 14 meetings, 10 races
IMX 3840%ahead in 4 of 10 meetings, 10 races
Bavaria Match 3525%ahead in 2 of 8 meetings, 8 races
Figaro 262%ahead in 5 of 8 meetings, 8 races
Dufour 3431%ahead in 4 of 13 meetings, 7 races
Swan 420%ahead in 0 of 8 meetings, 7 races
Farr 3013%ahead in 4 of 31 meetings, 7 racesalmost always behind
Grand Soleil 37 (Carkeek)8%ahead in 1 of 12 meetings, 6 races
First 34.733%ahead in 6 of 18 meetings, 6 races
Neo 3508%ahead in 1 of 12 meetings, 6 races
M 3442%ahead in 5 of 12 meetings, 6 races

Also met, too few times for a figure:

Dufour 40 (7 meetings), J/109 (7 meetings), Melges 32 (7 meetings), J/99 (7 meetings), Jv 44 (7 meetings), Rimar 36 (7 meetings), X-43 (7 meetings), Bh 36 (7 meetings), First 44.7 (7 meetings), Sun Fast 3200 (7 meetings), J/11 (7 meetings), Dehler 38 (Judel/Vrolijk) (6 meetings), X-37 (6 meetings), Salona 34 (6 meetings), Archambault 34 (6 meetings), Cobra 33 (6 meetings), Comet 36 (6 meetings), Bavaria Match 38 (5 meetings), Salona 37 (4 meetings), J/105 (4 meetings), Grand Soleil 40 (Paperini) (6 meetings), First 40 (4 meetings), Dehler 35 (Voogd) (4 meetings), First 45 (Briand) (3 meetings)

Some of the boats it races against

How the Bonin 358 has fared against each of them, boat against boat on corrected time. Ordered by how often the two meet, not by who wins.

Bonin 358 vs X-35ahead 31% of 64 head-to-heads
Bonin 358 vs Farr 30ahead 13% of 31 head-to-heads
Bonin 358 vs Italia 11.98ahead 4% of 24 head-to-heads
Bonin 358 vs M 37ahead 0% of 22 head-to-heads
Bonin 358 vs Italia 9.98ahead 0% of 22 head-to-heads

Speed at every angle

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

3691230°60°90°120°150°WIND11.0

Upwind VMG

5.25

39°

Beam reach

8.96

90°

Broad reach

11.02

135°

Downwind VMG

8.45

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.

The stronger it blows, the better this design looks. On a windy coastal course it is in its element; on a light-air windward-leeward it has to be sailed well to hold on.

Where it gains

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

Where it pays

It falls short on the beat in a strong breeze, giving away time it never gets back. That is a hull that will lift and run given enough breeze.

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+0.02 kn
Beam reach+0.18 kn
Broad reach+0.32 kn
Downwind+0.20 kn

Full width is 1.4 kn either way.

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

How fast is a Bonin 358

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

Angle6 kn10 kn14 kn20 kn
Beat VMG3.584.835.155.25
52°5.477.047.417.56
60°5.777.287.677.85
75°5.987.478.038.39
90°6.087.638.298.96
110°6.117.888.669.66
120°5.987.868.9610.21
135°5.337.518.7111.02
150°4.486.707.989.76
Run VMG3.885.806.958.45

How they are set up

The range each sail spans across the fleet.

Mainsail38 m² – 41 m²
Headsail31 m² – 32 m²
Gennaker110 m² – 121 m²

Nearly all carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 520 kg.

Rigging

Bonin 358 rig and sail dimensions

A Bonin 358 carries 13.29 m of mainsail hoist on a 5.04 m boom, a forestay 13.53 m above the deck and a 5.31 m bowsprit. Typical figures across the 2 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP13.29 m13.12 – 13.45
Boom lengthE5.04 m5.04 – 5.05
Forestay heightIG13.53 m13.51 – 13.55
Fore triangle baseJ4.01 m3.97 – 4.05
Spinnaker hoistISP15.07 m15.04 – 15.10
BowspritTPS5.31 m5.10 – 5.53
Boom above deckBAS1.59 m1.53 – 1.66

Sails

Mainsail39.2 m²37.9 – 40.5
Headsail31.3 m²30.6 – 32.1
Gennaker115.5 m²110.1 – 120.8

The spinnaker spreads widest of all — 110 to 121 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.