Rivetto
NEGRI NAUTICA · Claudio Maletto · 1978
Updated
The Rivetto is a 7.51 m displacement racing yacht designed by Claudio Maletto and built by NEGRI NAUTICA, first launched in 1978. It races in Class C.
Length
7.51 m
24′ 8″
Beam
2.52 m
Draft
1.36 m
Displacement
1.0 t
Sail area
28 m²
On the podium
Where a Rivetto finishes when she goes racing.
On the podium
22%
of 65 starts by 2 boats
Wins
11%
Read from 65 starts by 2 boats between 2019 and 2026, counting races with six boats or more.
Recent regattas
The latest events where a Rivetto was on the start line, named as the organisers publish them.
Yacht Club Domaso Circolo Velico del Lario Asd2026- Coppa Italia Minialtura ORC2026
- 1° Tappa Campionato Velico del Lario2026
- Campionato Italiano Minialtura2025
- Campionato Velico del Lario ORC 4 tappa2024
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
23%
of these races end on the podium
Offshore & coastal
—
Not enough data yet: 4 races over 10 NM carry a published distance.
Who she races against
The designs a Rivetto actually lines up with, most often first. The bar shows how those meetings ended.
Also met, too few times for a figure:
Protagonist 750 (7 meetings), Express (7 meetings), Surprise (6 meetings), First 24 (Manuard) (5 meetings), H-boat (5 meetings), Fun (4 meetings), Melges 24 (4 meetings), Ecoracer 30 (4 meetings), Viper 640 (4 meetings), Soling Od (6 meetings), Longtze Premier (3 meetings)
Some of the boats it races against
How the Rivetto 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
4.05
41°
Beam reach
7.21
90°
Broad reach
8.36
135°
Downwind VMG
6.91
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 off the wind in a strong breeze, where it outruns what it looks like on paper, 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 beat once it pipes up, giving away time it never gets back. That is a displacement hull working to its designed speed.
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 0.8 kn either way.
At 10 knots this design makes back more than its rating asks on the upwind.
How fast is a Rivetto
Boat speed in knots, by true wind angle and wind strength.
| Angle | 6 kn | 10 kn | 14 kn | 20 kn |
|---|---|---|---|---|
| Beat VMG | 3.01 | 3.98 | 4.13 | 4.05 |
| 52° | 4.58 | 5.64 | 5.87 | 5.92 |
| 60° | 4.80 | 5.79 | 6.07 | 6.19 |
| 75° | 4.94 | 5.92 | 6.41 | 6.71 |
| 90° | 4.88 | 6.05 | 6.61 | 7.21 |
| 110° | 4.83 | 6.10 | 7.00 | 7.79 |
| 120° | 4.64 | 6.00 | 6.95 | 8.43 |
| 135° | 4.11 | 5.71 | 6.61 | 8.36 |
| 150° | 3.49 | 5.27 | 6.21 | 7.62 |
| Run VMG | 3.02 | 4.62 | 5.72 | 6.91 |
How they are set up
The range each sail spans across the fleet.
Most run a fixed propeller. Crew weight is declared around 320 kg.
Rigging
Rivetto rig and sail dimensions
A Rivetto carries 8.14 m of mainsail hoist on a 3.12 m boom, a forestay 7.01 m above the deck. Typical figures across the 2 boats measured under the current VPP, with the range each one spans.
Rig
Sails
The spinnaker spreads widest of all — 25 to 29 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.