The Dufour 29 Sailboat

The Dufour 29, a masthead sloop, was designed by Michel Dufour and built in France by Dufour Yachts. 

A Dufour 29 sailboat launches the spinnakerA Dufour 29 sailing slowly in very light winds under her spinnaker

Published Specification for the Dufour 29

Underwater Configuration:  Fin with skeg-hung rudder

Hull Material:  GRP (fibreglass)

Length Overall: 29' 4" / 8.94m

Waterline Length: 25' 1" / 7.64m

Beam: 9' 8" / 2.95m

Draft: 5' 3" / 1.60m

Rig Type: Masthead Sloop

Displacement: 7,250lb / 3,289kg

Designer: Michel Dufour

Builder: Dufour (France)

Year First Built: 1975

Year Last Built: 1984

Owners Association: Dufour Owners Association

Published Design Ratios for the Dufour 29

1. Sail Area/Displacement Ratio: 15.6

  • Less than 16 would be considered under-powered;
  • 16 to 20 would indicate reasonably good performance;
  • Over 20 suggests relatively high performance.

2. Ballast/Displacement Ratio: 36.5

  • Under 40: less stiff, less powerful
  • Over 40: stiffer, more powerful

3. Displacement/Length Ratio: 205

  • Under 100: Ultralight
  • 100 to 200: Light
  • 200 to 275: Moderate
  • 275 to 350: Heavy
  • Over 350: Ultraheavy

4. Comfort Ratio: 20.7

  • Under 20 indicates a lightweight racing boat
  • 20 to 30 indicates a coastal cruiser
  • 30 to 40 indicates a moderate offshore cruising boat
  • 40 to 50 indicates a heavy offshore boat
  • Over 50 indicates an extremely heavy offshore boat

5. Capsize Screening Formula: 2.0

  • Under 2.0 (the lower the better): Better suited for ocean passages
  • Over 2.0: Less suited for ocean passages

read more about these all-revealing numbers...

Summary Analysis of Published Design Ratios for the Dufour 29

A Sail Area/Displacement Ratio of just 15.6 suggests that she'll need a stiff breeze to get her going. In any other conditions, unless you've got plenty of time on your hands, motor-sailing will be the way to go.

A Ballast/Displacement Ratio of 36.5 means that unless the bulk of the ballast is concentrated in a bulb at the foot of her keel, she'll have a tendency to heel excessively in a gust, and she'll need to be reefed early to keep her sailing upright in a moderate breeze. 

A Displacement/Length Ratio of 205, tells us she's a moderate displacement cruiser, which means she'll carry all your cruising gear without it having a dramatic effect on her performance. Most of today's sailboats intended for offshore cruising fall into this displacement category.

Ted Brewer's Comfort Ratio of 20.7 suggests that crew comfort in a seaway is similar to what you would associate with the motion of a coastal cruiser, which is not encouraging news for anyone prone to seasickness. 

Her Capsize Screening Formula of 2.0 tells us that she would not be a good choice of sailboat for ocean passage-making.

Sailboats in the Dufour range include:

  • Dufour 12000 CT
  • Dufour 1300
  • Dufour 1800/25
  • Dufour 24
  • Dufour 27
  • Dufour 28 Mezzo
  • Dufour 2800
  • Dufour 29
  • Dufour 30/31 Frers
  • Dufour 31
  • Dufour 310 Grand Large
  • Dufour 32 Integral
  • Dufour 325 Grand Large
  • Dufour 334 Trophy
  • Dufour 34
  • Dufour 34 Performance
  • Dufour 35
  • Dufour 350 Grand Large
  • Dufour 360 Grand Large
  • Dufour 360 Grand Large
  • Dufour 365 Grand Large
  • Dufour 36p
  • Dufour 375 Grand Large
  • Dufour 3800
  • Dufour 382 Grand Large
  • Dufour 385 Grand Large
  • Dufour 39 Cc
  • Dufour 39 Frers
  • Dufour 390 Grand Large
  • Dufour 40
  • Dufour 40e
  • Dufour 41
  • Dufour 410 Grand Large
  • Dufour 412 Grand Large
  • Dufour 42 (S&S)
  • Dufour 425 Grand Large
  • Dufour 430 Grand Large
  • Dufour 44 Performance
  • Dufour 445 Grand Large
  • Dufour 450 Grand Large
  • Dufour 455 Grand Large
  • Dufour 45e
  • Dufour 460 Grand Large
  • Dufour 470
  • Dufour 48 Prestige
  • Dufour 4800
  • Dufour 485 Grand Large
  • Dufour 500 Grand Large
  • Dufour 512 Grand Large
  • Dufour 520 Grand Large
  • Dufour 525 Grand Large
  • Dufour 530
  • Dufour 56
  • Dufour 61
  • Dufour 63
  • Dufour 65
  • Dufour 9000
  • Dufour Arpege 30
  • Dufour Atoll 43
  • Dufour Atoll 50
  • Dufour Classic 30
  • Dufour Classic 32
  • Dufour Classic 35
  • Dufour Classic 36
  • Dufour Classic 38
  • Dufour Classic 41
  • Dufour Classic 43
  • Dufour Classic 45
  • Dufour Classic 50
  • Dufour Duo 26
  • Dufour F39
  • Dufour Safari 27
  • Dufour Sortilege 41
  • Dufour Sylphe
  • Dufour T6
  • Dufour T7

Recent Articles

  1. The Etap 32i Sailboat

    May 16, 22 04:32 AM

    Interested in the Etap 32i sailboat? Here are the pics, specs and performance predictions you're looking for...

    Read More

  2. X-332

    May 15, 22 10:55 AM

    Interested in the X-332 sailboat? Here are the pics, specs and performance predictions you're looking for...

    Read More

  3. The Jeanneau Sun Odyssey 44 Sailboat

    May 14, 22 06:47 AM

    Interested in the Jeanneau Sun Odyssey 44 sailboat? Here are the pics, specs and performance predictions you're looking for...

    Read More