Class CSemi-displacementPerformance

40 Sqm Skerry Cruiser

Balatonfüred SY · A. Harms · 1925

Updated

The 40 Sqm Skerry Cruiser is a 13.18 m semi-displacement racing yacht designed by A. Harms and built by Balatonfüred SY, first launched in 1925. It races in Class C.

40 Sqm Skerry Cruiser - A. Harms - Balatonfüred SYP 13.01 mLOA 13.18 m

Length

13.18 m

43′ 3″

Beam

2.10 m

Draft

1.66 m

Displacement

4.3 t

Sail area

64 m²

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

On the podium

Where a 40 Sqm Skerry Cruiser 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 40 Sqm Skerry Cruiser 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 40 Sqm Skerry Cruiser 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.

36930°60°90°120°150°WIND10.2

Upwind VMG

5.14

40°

Beam reach

8.55

90°

Broad reach

10.21

135°

Downwind VMG

8.43

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.

It needs pressure to show what it can do. 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 running deep when it blows, where it does more than its size and sail area promise, and by a margin worth having. It holds that advantage cracked off as well, so the gain is not down to one leg of the course.

Where it pays

It falls short on the beat in moderate air, giving away time it never gets back.

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-0.01 kn
Beam reach+0.27 kn
Broad reach+0.29 kn
Downwind+0.12 kn

Full width is 0.8 kn either way.

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

How fast is a 40 Sqm Skerry Cruiser

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

Angle6 kn10 kn14 kn20 kn
Beat VMG3.604.664.955.14
52°5.536.907.207.43
60°5.877.187.477.70
75°6.147.457.808.12
90°6.077.538.078.55
110°5.947.648.228.93
120°5.757.618.439.39
135°5.027.288.2910.21
150°4.176.447.829.47
Run VMG3.605.577.048.43

How they are set up

The range each sail spans across the fleet.

Mainsail41 m² – 42 m²
Headsail17 m² – 28 m²
Spinnaker64 m² – 75 m²

Roughly half carry a folding propeller. Crew weight is declared around 350 kg.

Rigging

40 Sqm Skerry Cruiser rig and sail dimensions

A 40 Sqm Skerry Cruiser carries 13.16 m of mainsail hoist on a 5.10 m boom, a forestay 9.89 m above the deck. Typical figures across the 2 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP13.16 m13.01 – 13.30
Boom lengthE5.10 m4.94 – 5.25
Forestay heightIG9.89 m9.69 – 10.10
Fore triangle baseJ2.54 m2.37 – 2.70
Spinnaker hoistISP10.46 m10.45 – 10.46
Boom above deckBAS0.99 m0.90 – 1.07

Sails

Mainsail41.4 m²40.8 – 42.0
Headsail22.4 m²16.8 – 28.0
Spinnaker69.1 m²63.7 – 74.6

The spinnaker spreads widest of all — 64 to 75 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.