Class CPlaningPerformance

Md 35

M BOATS · Mark Mills · 2008

Updated

The Md 35 is a 10.71 m planing racing yacht designed by Mark Mills and built by M BOATS, first launched in 2008. It races in Class C.

Md 35 - Mark Mills - M BOATSP 11.82 mLOA 10.71 m

Length

10.71 m

35′ 2″

Beam

2.27 m

Draft

2.22 m

Displacement

2.8 t

Sail area

53 m²

This design does not carry a Race Edge. The speeds below still come from measured boats.

On the podium

Where a Md 35 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 Md 35 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 Md 35 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.

3691230°60°90°120°150°WIND11.6

Upwind VMG

5.36

38°

Beam reach

8.96

90°

Broad reach

11.59

135°

Downwind VMG

9.93

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. 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 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 cracked off as well, so the gain is not down to one leg of the course.

Where it pays

It falls short upwind once it pipes up, 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.

True wind
Upwind+0.03 kn
Beam reach-0.02 kn
Broad reach+0.38 kn
Downwind+0.39 kn

Full width is 1.8 kn either way.

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

How fast is a Md 35

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

Angle6 kn10 kn14 kn20 kn
Beat VMG3.794.955.245.36
52°5.757.117.397.54
60°6.067.327.637.82
75°6.287.517.998.35
90°6.187.548.258.96
110°6.377.788.479.43
120°6.287.958.8510.12
135°5.667.719.1611.59
150°4.736.998.3211.46
Run VMG4.106.067.259.93

How they are set up

The range each sail spans across the fleet.

Mainsail31 m² – 33 m²
Headsail18 m² – 22 m²
Gennaker82 m² – 98 m²

Nearly all carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 400 kg.

Rigging

Md 35 rig and sail dimensions

A Md 35 carries 11.85 m of mainsail hoist on a 4.49 m boom, a forestay 11.97 m above the deck and a 5.75 m bowsprit. Typical figures across the 3 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP11.85 m11.80 – 12.04
Boom lengthE4.49 m4.40 – 4.50
Forestay heightIG11.97 m11.97 – 12.00
Fore triangle baseJ3.50 m3.48 – 3.51
Spinnaker hoistISP13.15 m12.70 – 13.15
BowspritTPS5.75 m5.37 – 5.96
Boom above deckBAS1.16 m0.75 – 1.16

Sails

Mainsail32.2 m²31.0 – 33.1
Headsail20.5 m²17.8 – 22.0
Gennaker94.6 m²82.4 – 98.3

The spinnaker spreads widest of all — 82 to 98 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.