Class CSemi-displacementPerformance

Farr 31

Fareast Boats · Bruce Farr · 1994

Updated

The Farr 31 is a 9.55 m semi-displacement racing yacht designed by Bruce Farr and built by Fareast Boats, first launched in 1994. It races in Class C.

Farr 31 - Bruce Farr - Fareast BoatsP 11.84 mLOA 9.55 m

Length

9.55 m

31′ 4″

Beam

3.21 m

Draft

1.98 m

Displacement

2.4 t

Sail area

56 m²

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

On the podium

Where a Farr 31 finishes when she goes racing.

On the podium

40%

of 10 starts by 3 boats

Wins

10%

Wins10%1
Seconds20%2
Thirds10%1
Off the podium60%6

Read from 10 starts by 3 boats between 2023 and 2026, counting races with six boats or more.

Recent regattas

The latest events where a Farr 31 was on the start line, named as the organisers publish them.

  • Italy4ª Golfo dei Poeti Cup2026
  • Italy59° Trofeo Fiorillo2026
  • ItalyCampionato Invernale del Sabato2025
  • ItalyCampionato di Primavera2025
  • World championshipORC DH World Championship2024

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: 5 races of 10 NM or less carry a published distance.

Offshore & coastal

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Not enough data yet: 4 races over 10 NM carry a published distance.

Who she races against

The designs a Farr 31 actually lines up with, most often first. The bar shows how those meetings ended.

Met too few times for a figure:

Elan 340 (6 meetings), Comet 45 (6 meetings), First 40 (5 meetings), X-362 (5 meetings), Sly 42 (4 meetings), B&c 46 (4 meetings), First 31.7 (7 meetings), Elan 333 (3 meetings), Platu 25 (3 meetings), Rimar 44.3 (3 meetings), First 34.7 (2 meetings), First 36.7 (3 meetings), J/92 (3 meetings), Bonin 31 (2 meetings), Stag 38 (2 meetings), More 40 (2 meetings), Vismara 40 (2 meetings), Grand Soleil 39 (Jézéquel) (2 meetings), Este 24 (2 meetings), X-412 (2 meetings), Bavaria 36 (2 meetings), Elan 310 (2 meetings), X-332 (2 meetings), Farr 30 (1 meeting), Bavaria Match 38 (1 meeting), X-34 (1 meeting), Elan 37 (2 meetings), Xp 33 (1 meeting), X-35 (2 meetings), Linjett 33 (1 meeting), First 30 (Kouyoumdjian) (1 meeting), Sun Fast 3200 (1 meeting), Archambault 31 (1 meeting), X-95 (1 meeting), Arcona 370 (1 meeting), A 31 (1 meeting), X-37 (2 meetings), X-79 (1 meeting), Pogo 850 (1 meeting), Diva 34 (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°WIND10.2

Upwind VMG

5.10

37°

Beam reach

8.49

90°

Broad reach

10.24

135°

Downwind VMG

8.13

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 is a boat that wants breeze. Give it a fresh day and long legs and it delivers more than it promised; in a drifter it is working uphill.

Where it gains

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

Where it pays

There is no condition where it falls away badly, which is worth something over a season of mixed weather.

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+0.26 kn
Beam reach-0.05 kn
Broad reach-0.01 kn
Downwind+0.07 kn

Full width is 0.8 kn either way.

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

How fast is a Farr 31

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

Angle6 kn10 kn14 kn20 kn
Beat VMG3.734.865.065.10
52°5.626.847.047.15
60°5.887.027.267.41
75°6.057.197.607.90
90°5.997.217.888.49
110°5.777.338.229.18
120°5.577.228.319.89
135°4.956.877.9310.24
150°4.166.287.419.21
Run VMG3.615.466.588.13

How they are set up

The range each sail spans across the fleet.

Mainsail29 m² – 32 m²
Headsail19 m² – 28 m²
Gennaker37 m² – 74 m²
Spinnaker44 m² – 86 m²

Nearly all carry a folding propeller. Crew weight is declared around 480 kg.

Rigging

Farr 31 rig and sail dimensions

A Farr 31 carries 11.60 m of mainsail hoist on a 4.36 m boom, a forestay 11.49 m above the deck and a 3.70 m bowsprit. Typical figures across the 6 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP11.60 m10.65 – 11.84
Boom lengthE4.36 m4.15 – 4.45
Forestay heightIG11.49 m9.41 – 11.52
Fore triangle baseJ3.29 m2.85 – 3.34
Spinnaker hoistISP12.11 m9.90 – 13.50
BowspritTPS3.70 m3.04 – 4.40
Boom above deckBAS1.68 m1.52 – 1.71

Sails

Mainsail30.4 m²28.5 – 32.0
Headsail25.1 m²19.4 – 28.3
Gennaker68.5 m²36.5 – 74.0
Spinnaker62.0 m²44.1 – 86.2

The spinnaker spreads widest of all — 37 to 74 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.