Class ASemi-displacementPerformance

Sydney 43

Sydney Yachts · Jason Ker · 2011

Updated

The Sydney 43 is a 13.13 m semi-displacement racing yacht designed by Jason Ker and built by Sydney Yachts, first launched in 2011. It races in Class A.

Sydney 43 - Jason Ker - Sydney YachtsP 17.94 mLOA 13.13 m

Length

13.13 m

43′ 1″

Beam

4.20 m

Draft

2.78 m

Displacement

7.9 t

Sail area

111 m²

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

On the podium

Where a Sydney 43 finishes when she goes racing.

On the podium

17%

of 12 starts by 2 boats

Wins

8%

Wins8%1
Seconds0%0
Thirds8%1
Off the podium84%10

Read from 12 starts by 2 boats between 2023 and 2025, counting races with six boats or more.

Recent regattas

The latest events where a Sydney 43 was on the start line, named as the organisers publish them.

  • MaltaRolex Middle Sea Race2025
  • SpainORC European Championship 2025 / 43rd Copa del Rey MAPFRE2025
  • CroatiaRegata Jabuka2024
  • CroatiaRegata Jabuka2023

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

—

Not enough data yet: 8 races of 10 NM or less carry a published distance.

Offshore & coastal

—

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

Who she races against

The designs a Sydney 43 actually lines up with, most often first. The bar shows how those meetings ended.

This design aheadRival ahead
Xp 4421%ahead in 3 of 14 meetings, 12 races
First 45 (Briand)73%ahead in 8 of 11 meetings, 11 races
Swan 421%ahead in 1 of 84 meetings, 10 racesalmost always behind
DK 460%ahead in 0 of 19 meetings, 10 racesalmost always behind
Swan 454%ahead in 2 of 46 meetings, 10 racesalmost always behind
IMX 450%ahead in 0 of 9 meetings, 9 races
Xp 5056%ahead in 5 of 9 meetings, 9 races
ClubSwan 4311%ahead in 2 of 18 meetings, 9 racesalmost always behind
Ker 4011%ahead in 1 of 9 meetings, 9 races
Mat 11811%ahead in 1 of 9 meetings, 9 races
Knierim 4911%ahead in 2 of 18 meetings, 9 racesalmost always behind
Italia 12.98 (Cossutti)0%ahead in 0 of 9 meetings, 9 races
Grand Soleil 44 (Polli)44%ahead in 4 of 9 meetings, 9 races
Italia 14.9856%ahead in 5 of 9 meetings, 9 races
Landmark 4311%ahead in 1 of 9 meetings, 9 races

Also met, too few times for a figure:

Elan 450 (3 meetings), Mat 11.80 (2 meetings), Dehler 46 (2 meetings), Elan E6 (3 meetings), Pac 52 (1 meeting), Sun Fast 3300 (Andrieu) (1 meeting), Sun Fast 3200 (1 meeting), JPK 10.30 (2 meetings), Irc 52 (1 meeting), TP 52 (Carkeek) (1 meeting), Comet 38 (Vallicelli) (1 meeting), Dufour 34 (1 meeting), Arcona 380 (1 meeting), First 40 (1 meeting), Botin 56 (1 meeting), Farr 30 (1 meeting), J/109 (1 meeting), Sun Fast 3600 (1 meeting), IMX 40 (1 meeting), Cookson 50 (1 meeting), J/111 (1 meeting), TP 52 (Judel/Vrolijk) (1 meeting), X-41 (1 meeting), Mat 122 (1 meeting), Dufour 44 (1 meeting)

Some of the boats it races against

How the Sydney 43 has fared against each of them, boat against boat on corrected time. Ordered by how often the two meet, not by who wins.

Sydney 43 vs Swan 42ahead 1% of 84 head-to-heads
Sydney 43 vs Swan 45ahead 4% of 46 head-to-heads
Sydney 43 vs DK 46ahead 0% of 19 head-to-heads
Sydney 43 vs ClubSwan 43ahead 11% of 18 head-to-heads
Sydney 43 vs Knierim 49ahead 11% of 18 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°WIND12.7

Upwind VMG

6.29

37°

Beam reach

10.12

90°

Broad reach

12.66

135°

Downwind VMG

9.70

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. 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 on a broad reach once it pipes up, where it outruns what it looks like on paper, and by a margin worth having. It holds that advantage downwind 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+0.17 kn
Beam reach+0.15 kn
Broad reach+0.25 kn
Downwind+0.21 kn

Full width is 1.0 kn either way.

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

How fast is a Sydney 43

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

Angle6 kn10 kn14 kn20 kn
Beat VMG4.175.636.086.29
52°6.318.048.478.71
60°6.648.258.729.03
75°6.888.409.069.59
90°7.148.649.2110.12
110°7.038.799.7811.06
120°6.808.799.9811.82
135°6.148.469.7812.66
150°5.147.588.9611.20
Run VMG4.456.567.809.70

How they are set up

The range each sail spans across the fleet.

Mainsail58 m² – 66 m²
Headsail46 m² – 48 m²
Gennaker196 m² – 220 m²

Nearly all carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 800 kg.

Rigging

Sydney 43 rig and sail dimensions

A Sydney 43 carries 17.94 m of mainsail hoist on a 5.58 m boom, a forestay 17.33 m above the deck and a 7.14 m bowsprit. Typical figures across the 6 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP17.94 m17.91 – 17.99
Boom lengthE5.58 m5.58 – 5.59
Forestay heightIG17.33 m17.33 – 17.43
Fore triangle baseJ5.05 m5.04 – 5.05
Spinnaker hoistISP19.88 m19.88 – 19.91
BowspritTPS7.14 m7.12 – 7.15
Boom above deckBAS1.76 m1.76 – 1.77

Sails

Mainsail64.1 m²57.8 – 65.5
Headsail46.4 m²45.7 – 48.4
Gennaker199.1 m²196.0 – 220.0

The spinnaker spreads widest of all — 196 to 220 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.