Comet 910 (Stadt)
Comet · E.G. van de Stadt · 1987
Updated
The Comet 910 (Stadt) is a 9.10 m heavy displacement racing yacht designed by E.G. van de Stadt and built by Comet, first launched in 1987. It races in Class C. Across the measured fleet it goes better than its own numbers promise, ahead of 10% of the designs it races against.
Goes better than its own measurements promise, and does it better than 10% of the boats it races against.
143rd of 159 in its class.
This design has been found in real race results — 46 starts across 6 events — not only in measurement files.
Length
9.10 m
29′ 10″
Beam
3.02 m
Draft
1.69 m
Displacement
3.4 t
Sail area
46 m²
On the podium
Where a Comet 910 (Stadt) finishes when she goes racing.
On the podium
13%
of 46 starts by 1 boat
Wins
4%
Read from 46 starts by 1 boat between 2021 and 2026, counting races with six boats or more.
Recent regattas
The latest events where a Comet 910 (Stadt) was on the start line, named as the organisers publish them.
Campionato Invernale di Roma, 45a edizione2026- Campionato Invernale di Roma, 44a edizione2025
- Campionato Invernale di Roma, 43a edizione2024
- Campionato Invernale di Roma, 42a edizione2023
- 1000 Vele per Garibaldi XV Edizione2022
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
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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: 1 race over 10 NM carry a published distance.
Who she races against
The designs a Comet 910 (Stadt) actually lines up with, most often first. The bar shows how those meetings ended.
Also met, too few times for a figure:
Genesi 43 (1 meeting), Comfortina 42 (1 meeting)
Some of the boats it races against
How the Comet 910 (Stadt) 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
4.44
39°
Beam reach
7.09
90°
Broad reach
7.66
135°
Downwind VMG
6.81
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 does most things without giving much away. It rewards preparation and crew work more than it rewards picking the right day.
Where it gains
Its best ground is upwind in a strong breeze, where it outruns what it looks like on paper.
Where it pays
It falls short cracked off when it blows, giving away time it never gets back. That is weight that has to be driven rather than released.
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 0.4 kn either way.
At 10 knots this design makes back more than its rating asks on the beam reach.
How fast is a Comet 910 (Stadt)
Boat speed in knots, by true wind angle and wind strength.
| Angle | 6 kn | 10 kn | 14 kn | 20 kn |
|---|---|---|---|---|
| Beat VMG | 2.83 | 3.88 | 4.37 | 4.44 |
| 52° | 4.33 | 5.67 | 6.19 | 6.32 |
| 60° | 4.55 | 5.86 | 6.34 | 6.52 |
| 75° | 4.70 | 6.00 | 6.50 | 6.86 |
| 90° | 4.69 | 6.17 | 6.66 | 7.09 |
| 110° | 4.73 | 6.28 | 6.91 | 7.56 |
| 120° | 4.57 | 6.19 | 6.88 | 7.75 |
| 135° | 4.14 | 5.90 | 6.69 | 7.66 |
| 150° | 3.55 | 5.37 | 6.39 | 7.33 |
| Run VMG | 3.08 | 4.67 | 5.84 | 6.81 |
How they are set up
The range each sail spans across the fleet.
Most run a fixed propeller. Crew weight is declared around 430 kg.
Rigging
Comet 910 (Stadt) rig and sail dimensions
A Comet 910 (Stadt) carries 9.80 m of mainsail hoist on a 2.88 m boom, a forestay 11.29 m above the deck. Typical figures across the 10 boats measured under the current VPP, with the range each one spans.
Rig
Sails
The spinnaker spreads widest of all — 51 to 64 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.
Other designs under the same name
The name has been carried by more than one design. They are different boats.