MaxiSemi-displacementCruiser/Racer

Cnb 76

CNSO · Philippe Briand · 2013

Updated

The Cnb 76 is a 23.17 m semi-displacement racing yacht designed by Philippe Briand and built by CNSO, first launched in 2013. It races in Maxi.

Cnb 76 - Philippe Briand - CNSOP 31.00 mLOA 23.17 m

Length

23.17 m

76′ 0″

Beam

6.08 m

Draft

3.02 m

Displacement

47.9 t

Sail area

317 m²

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

On the podium

Where a Cnb 76 finishes when she goes racing.

Not enough data yet to show how this design finishes. It has not been found in the race results we have collected so far.

Recent regattas

The latest events where a Cnb 76 was on the start line, named as the organisers publish them.

No regattas found yet.

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 Cnb 76 actually lines up with, most often first. The bar shows how those meetings ended.

Not enough data yet to say who this design races against. No result we have collected puts it on the water beside another design we track.

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°WIND13.3

Upwind VMG

7.30

40°

Beam reach

12.07

90°

Broad reach

13.35

135°

Downwind VMG

10.64

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.

Soft conditions suit it. Early-season racing and morning breezes play to its strengths; once it pipes up the fleet comes back to it.

Where it gains

Its best ground is on the beat in a strong breeze, where it does more than its size and sail area promise, and by a margin worth having. It holds that advantage on the beam as well, so the gain is not down to one leg of the course.

Where it pays

It falls short running deep 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-0.00 kn
Beam reach+0.54 kn
Broad reach+0.37 kn
Downwind+0.14 kn

Full width is 1.0 kn either way.

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

How fast is a Cnb 76

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

Angle6 kn10 kn14 kn20 kn
Beat VMG4.286.166.897.30
52°6.739.3210.2110.62
60°7.269.7910.6311.01
75°7.7210.1411.0611.55
90°7.7910.2911.2212.07
110°7.5810.4811.5812.66
120°7.3610.4311.7513.02
135°6.649.7511.3813.35
150°5.548.3810.4712.24
Run VMG4.797.269.0910.64

How they are set up

The range each sail spans across the fleet.

Mainsail173 m² – 176 m²
Headsail141 m² – 144 m²
Gennaker485 m² – 494 m²

Roughly half carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 1750 kg.

Rigging

Cnb 76 rig and sail dimensions

A Cnb 76 carries 31.50 m of mainsail hoist on a 9.60 m boom, a forestay 31.33 m above the deck and a 10.40 m bowsprit. Typical figures across the 2 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP31.50 m31.00 – 32.00
Boom lengthE9.60 m9.60 – 9.60
Forestay heightIG31.33 m31.30 – 31.36
Fore triangle baseJ9.08 m9.06 – 9.10
Spinnaker hoistISP34.42 m33.92 – 34.92
BowspritTPS10.40 m9.55 – 11.25
Boom above deckBAS2.59 m2.56 – 2.62

Sails

Mainsail174.1 m²172.6 – 175.7
Headsail142.6 m²141.3 – 143.8
Gennaker489.4 m²484.7 – 494.0