Ic 37
MELGES · Mark Mills · 2017
Updated
The Ic 37 is a 11.30 m planing racing yacht designed by Mark Mills and built by MELGES, first launched in 2017. It races in Class B. Across the measured fleet it goes better than its own numbers promise, ahead of 98% of the designs it races against. It comes alive as the breeze builds, and gives time away in the light.
Goes better than its own measurements promise, and does it better than 98% of the boats it races against.
3rd of 92 in its class.
Not verified. On planing hulls this score has no match in the race results we hold: designs scoring the same win anywhere from one race in ten to seven in ten. Read it as what the measurements say, not as a ranking.
Length
11.30 m
37′ 1″
Beam
3.65 m
Draft
2.51 m
Displacement
3.5 t
Sail area
87 m²
On the podium
Where a Ic 37 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 Ic 37 was on the start line, named as the organisers publish them.
No regattas found yet.
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: no races over 10 NM carry a published distance.
Who she races against
The designs a Ic 37 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.
Upwind VMG
5.89
38°
Beam reach
10.70
90°
Broad reach
13.91
135°
Downwind VMG
11.18
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.
The stronger it blows, the better this design looks. Give it a fresh day and long legs and it delivers more than it promised; in a drifter it is working uphill.
Where it gains
Its best ground is downwind once it pipes up, where it outruns what it looks like on paper, 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 when it blows, giving away time it never gets back. That is a hull that wants to get up and go, and needs pressure to do it.
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 2.4 kn either way.
At 10 knots this design makes back more than its rating asks on the broad reach.
How fast is a Ic 37
Boat speed in knots, by true wind angle and wind strength.
| Angle | 6 kn | 10 kn | 14 kn | 20 kn |
|---|---|---|---|---|
| Beat VMG | 4.12 | 5.44 | 5.76 | 5.89 |
| 52° | 6.28 | 7.83 | 8.19 | 8.44 |
| 60° | 6.62 | 8.10 | 8.56 | 8.89 |
| 75° | 6.86 | 8.37 | 9.15 | 9.71 |
| 90° | 6.81 | 8.43 | 9.59 | 10.70 |
| 110° | 6.82 | 8.81 | 10.03 | 11.50 |
| 120° | 6.68 | 8.86 | 10.41 | 12.51 |
| 135° | 6.00 | 8.38 | 10.39 | 13.91 |
| 150° | 5.01 | 7.45 | 9.09 | 12.91 |
| Run VMG | 4.34 | 6.45 | 7.88 | 11.18 |
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 720 kg.
Rigging
Ic 37 rig and sail dimensions
A Ic 37 carries 14.80 m of mainsail hoist on a 5.00 m boom, a forestay 15.07 m above the deck and a 6.82 m bowsprit. Typical figures across the 8 boats measured under the current VPP, with the range each one spans.
Rig
Sails