Class CPlaningPerformance

Adams 10

Adams · Joe Adams · 1971

Updated

The Adams 10 is a 9.99 m planing racing yacht designed by Joe Adams and built by Adams, first launched in 1971. It races in Class C. Across the measured fleet it goes better than its own numbers promise, ahead of 79% of the designs it races against. It comes alive as the breeze builds, and gives time away in the light.

Adams 10 - Joe Adams - AdamsP 12.14 mLOA 9.99 m
Race Edge79

Goes better than its own measurements promise, and does it better than 79% of the boats it races against.

34th of 159 in its class.

Under 10 kn
48
10–16 kn
91
Over 16 kn
91

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

9.99 m

32′ 9″

Beam

2.74 m

Draft

1.79 m

Displacement

2.9 t

Sail area

55 m²

On the podium

Where a Adams 10 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 Adams 10 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 Adams 10 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°WIND10.5

Upwind VMG

5.26

37°

Beam reach

8.53

90°

Broad reach

10.52

135°

Downwind VMG

8.32

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. 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 off the wind in a strong breeze, where it goes better than its measurements say it should, and by a margin worth having. It holds that advantage downwind as well, so the gain is not down to one leg of the course.

Where it pays

There is no condition where it falls away badly, which is worth something over a season of mixed weather.

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+0.15 kn
Beam reach-0.07 kn
Broad reach+0.11 kn
Downwind+0.08 kn

Full width is 1.4 kn either way.

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

How fast is a Adams 10

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

Angle6 kn10 kn14 kn20 kn
Beat VMG3.434.765.145.26
52°5.256.797.177.33
60°5.536.977.387.58
75°5.697.117.698.06
90°5.627.127.838.53
110°5.737.388.088.84
120°5.587.398.339.50
135°5.007.068.2510.52
150°4.206.337.629.50
Run VMG3.645.496.828.32

How they are set up

The range each sail spans across the fleet.

Mainsail27 m² – 29 m²
Headsail21 m² – 29 m²
Gennaker67 m² – 86 m²
Spinnaker52 m² – 94 m²

Most run a fixed propeller. Crew weight is declared around 600 kg.

Rigging

Adams 10 rig and sail dimensions

A Adams 10 carries 12.13 m of mainsail hoist on a 3.80 m boom, a forestay 10.37 m above the deck and a 4.33 m bowsprit. Typical figures across the 22 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP12.13 m11.75 – 12.45
Boom lengthE3.80 m3.70 – 4.00
Forestay heightIG10.37 m10.10 – 11.64
Fore triangle baseJ3.55 m3.49 – 3.58
Spinnaker hoistISP13.10 m10.34 – 13.27
BowspritTPS4.33 m3.69 – 4.38
Boom above deckBAS0.93 m0.86 – 1.30

Sails

Mainsail28.2 m²26.8 – 28.7
Headsail27.2 m²21.0 – 29.0
Gennaker74.8 m²67.2 – 86.1
Spinnaker87.8 m²51.6 – 94.3

The spinnaker spreads widest of all — 67 to 86 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.