1995 — 2011
Designer
Robert Perry
Builder
Valiant Yachts (USA)
Associations
?
# Built
?
Hull
Monohull
Keel
Fin
Rudder
Skeg
Construction
FG

Dimensions

Length Overall
39 4 / 12 m
Length On Deck
37 0 / 11.3 m
Waterline Length
31 11 / 9.8 m
Beam
11 6 / 3.5 m
Draft
5 10 / 1.8 m
Displacement
18,500 lb / 8,391 kg
Ballast
7,000 lb / 3,175 kg (Lead)
Drawing of Valiant 39
  • 1 / 11
  • 2 / 11
  • 3 / 11
  • 4 / 11
  • 5 / 11
  • 6 / 11
  • 7 / 11
  • 8 / 11
  • 9 / 11
  • 10 / 11
  • 11 / 11

Rig and Sails

Type
Cutter
Reported Sail Area
731′² / 67.9 m²
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Air Draft
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
Westerbeke
Model
35B
HP
35
Fuel Type
Diesel
Fuel Capacity
47 gal / 178 l

Accomodations

Water Capacity
128 gal / 485 l
Holding Tank Capacity
36 gal / 136 l
Headroom
6 5 / 2 m
Cabins
?

Calculations

Hull Speed
8.4 kn
Classic: 7.58 kn

Hull Speed

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Formula

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL

8.37 knots
Classic formula: 7.58 knots
Sail Area/Displacement
16.7
16-20: good performance

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

Formula

SA/D = SA ÷ (D ÷ 64)2/3

  • SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D: Displacement in pounds.
16.72
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
37.8
<40: less stiff, less powerful

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Formula

Ballast / Displacement * 100

37.84
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
252.3
200-275: moderate

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

Formula

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
252.31
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
32.0
30-40: moderate bluewater cruising boat

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Formula

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)

  • D: Displacement of the boat in pounds
  • LWL: Waterline length in feet
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet
32.03
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
1.7
<2.0: better suited for ocean passages

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

Formula

CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
1.74
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

From BlueWaterBoats.org:

The Valiant 39 is a 1995 update of the Bob Perry designed Valiant Esprit 37 by Valiant Yachts. Despite an excellent pedigree which has its roots going back to the legendary Valiant 40, the boat and its earlier incarnation are often overlooked.

The Esprit 37 was originally introduced in 1976 following the same Bob Perry formula that brought the world the famed Valiant 40. The boat was known for nimble all-round performance, strong build quality, and seaworthiness.

The Valiant 39 adds a hefty tubular stainless bowsprit allowing the boat’s cutter configuration to open up its foretriangle, giving enough room for a proper working staysail. Though the original hull molds were used, all new deck moldings were created with a boxy cabin trunk to match the Valiant 42 and Valiant 50.

For more information including sailing characteristics and history, take a look at the full review of the Valiant Esprit 37.

Links, References and Further Reading

» Cruising World Magazine, Valiant 39 review.
» Valiant Yachts official site, Valiant 39 information.

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