Corby 33
Microspan · John Corby · 2006
Updated
The Corby 33 is a 10.02 m displacement racing yacht designed by John Corby and built by Microspan, first launched in 2006. It races in Class C.
Length
10.02 m
32′ 10″
Beam
2.92 m
Draft
2.23 m
Displacement
4.3 t
Sail area
66 m²
On the podium
Where a Corby 33 finishes when she goes racing.
On the podium
15%
of 40 starts by 2 boats
Wins
2%
Read from 40 starts by 2 boats between 2022 and 2026, counting races with six boats or more.
Recent regattas
The latest events where a Corby 33 was on the start line, named as the organisers publish them.
Island Offshore - Race to the Arctic2026
ORC European Championship2024
Baltic Offshore Week 2024 - ORC EST and FIN Championship2024- ORC DH World Championship2024
- E4 Championship W/L2024
Raced one we are missing?
Report a regattaRound 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
0%
of these races end on the podium
Offshore & coastal
—
Not enough data yet: 7 races over 10 NM carry a published distance.
Who she races against
The designs a Corby 33 actually lines up with, most often first. The bar shows how those meetings ended.
Also met, too few times for a figure:
X-41 (7 meetings), Elan 380 (7 meetings), Dehler 38 (Judel/Vrolijk) (6 meetings), Dehler 30 OD (6 meetings), X-40 (5 meetings), Elan 350 (5 meetings), Luffe 40 (4 meetings), 11 Metre (4 meetings), Bavaria Match 38 (5 meetings), Grand Soleil 37 (Carkeek) (4 meetings), Salona 40 (4 meetings), Dufour 40 (3 meetings), Sun Odyssey 409 (3 meetings), Figaro 2 (1 meeting), JPK 10.80 (1 meeting), Elan S5 (1 meeting)
Some of the boats it races against
How the Corby 33 has fared against each of them, boat against boat on corrected time. Ordered by how often the two meet, not by who wins.
Speed at every angle
The shape of this design's speed, drawn from the measured fleet. Pick a wind and watch it stretch.
Upwind VMG
5.50
36°
Beam reach
8.47
90°
Broad reach
10.05
135°
Downwind VMG
7.94
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 off the wind 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 running deep as well, so the gain is not down to one leg of the course.
Where it pays
It falls short on the beam in a working breeze, 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.
Full width is 0.6 kn either way.
At 10 knots this design makes back more than its rating asks on the upwind.
How fast is a Corby 33
Boat speed in knots, by true wind angle and wind strength.
| Angle | 6 kn | 10 kn | 14 kn | 20 kn |
|---|---|---|---|---|
| Beat VMG | 3.65 | 4.94 | 5.33 | 5.50 |
| 52° | 5.49 | 6.93 | 7.31 | 7.49 |
| 60° | 5.75 | 7.05 | 7.50 | 7.71 |
| 75° | 5.92 | 7.15 | 7.69 | 8.09 |
| 90° | 5.83 | 7.28 | 7.74 | 8.47 |
| 110° | 5.93 | 7.50 | 8.27 | 9.05 |
| 120° | 5.80 | 7.43 | 8.38 | 9.71 |
| 135° | 5.19 | 7.11 | 8.07 | 10.05 |
| 150° | 4.39 | 6.47 | 7.52 | 8.97 |
| Run VMG | 3.80 | 5.62 | 6.74 | 7.94 |
How they are set up
The range each sail spans across the fleet.
Nearly all carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 570 kg.
Rigging
Corby 33 rig and sail dimensions
A Corby 33 carries 13.12 m of mainsail hoist on a 4.50 m boom, a forestay 13.98 m above the deck and a 5.20 m bowsprit. Typical figures across the 4 boats measured under the current VPP, with the range each one spans.
Rig
Sails
The spinnaker spreads widest of all — 100 to 108 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.