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Endeavour 40
Designer: Bob Johnson  ·  Builder: Endeavour Yacht Corp. (Usa)  ·  First built: 1981
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About the Endeavour 40

Built by Endeavour Yacht Corp. from 1981 to 1985, this substantial 40-footer represents solid American cruising design from the early 1980s. Designer Bob Johnson created a well-balanced coastal cruiser that prioritizes comfort and seaworthiness over racing performance, evident in the boat's generous beam and moderate sail-area-to-displacement ratio of 14.81. The Endeavour 40 features a fin keel with rudder mounted on a skeg, providing good directional stability while maintaining reasonable maneuverability. With 9,000 pounds of ballast in a 25,000-pound displacement, the boat offers reassuring stability for extended coastal cruising and light offshore passages. The comfortable 36.89 comfort ratio and excellent 1.78 capsize screening value underscore its suitability for serious cruising applications. This masthead sloop configuration maximizes sail area efficiency while keeping the rig manageable for short-handed sailing. The fiberglass construction has proven durable over the decades, and with only 185 hulls produced during the model's four-year run, these boats maintain reasonable exclusivity. The 50-horsepower auxiliary engine provides adequate power for maneuvering in tight quarters or motoring in calm conditions. Overall, the Endeavour 40 appeals to cruising sailors seeking a stable, comfortable platform for coastal exploration and weekend getaways.

Core Dimensions
LOA (Length Overall) 40.00 ft / 12.19 m
LWL (Waterline Length) 32.00 ft / 9.75 m
Beam 13.00 ft / 3.96 m
Max Draft 5.00 ft / 1.52 m
Displacement 25,000.00 lb / 11,340 kg
Ballast 9,000.00 lb / 4,082 kg
Sail Area (Reported) 788.00 ft² / 73.21 m²
Headroom 6.33 ft / 1.93 m
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Bob Johnson
Builder Endeavour Yacht Corp. (USA)
First Built 1981
Last Built 1985
Number Built 185
Associations Endeavour Sailboat Owners
Related Sailboats ["Irwin 38 2" · "Endeavour 40 Kth" · "Gulfstar 40 Sailmaster" · "Valiant 40 2" · "J40 Classic"]
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Performance Ratios
PHRF Rating PHRF (Performance Handicap Racing Fleet) is a national racing handicap measured in seconds per nautical mile. Lower values indicate faster boats. Ratings are sourced from US Sailing's national database (median across 60+ regional fleets).
Under 0 — Ultralight racer0–90 — Performance racer90–150 — Cruiser/racer150–210 — Typical cruiserOver 210 — Heavy/slow cruiser
 147
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
 14.81
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
 36
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
 340.6
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
 36.89
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
 1.78
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 7.58 kn
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
 1.32
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 1,486.41 pounds/inch
SA/Displacement (Calc) Calculated Sail Area to Displacement ratio using actual measured sail dimensions rather than reported values. More precise than the reported SA/Disp figure. 14.81
Rig Dimensions
I (Foretriangle Height) 50.77 ft / 15.47 m
J (Foretriangle Base) 15.85 ft / 4.83 m
P (Mainsail Luff) 49.00 ft / 14.94 m
E (Mainsail Foot) 15.75 ft / 4.80 m
SA Fore 402.35 ft² / 37.38 m²
SA Main 385.88 ft² / 35.85 m²
SA Total (100%) 788.23 ft² / 73.23 m²
Est. Forestay Length 53.19 ft / 16.21 m
Mast Height (DWL) 54.44 ft / 16.59 m
Engine & Accommodations
Engine Make Perkins
Engine Model 4-108
Engine Type Diesel
Horsepower 50
Fuel Capacity 75 gals / 284 L
Water Capacity 170 gals / 644 L
How It Compares

vs. Endeavour 40 Kth, Gulfstar 40 Sailmaster, Valiant 40 2

This boat Similar boats
Dimensions
LOA
Endeavour 40 ★
40.0 ft
Endeavour 40 Kth
40.0 ft
Gulfstar 40 Sailmaster
39.9 ft
Valiant 40 2
39.9 ft
LWL
Endeavour 40 ★
32.0 ft
Endeavour 40 Kth
32.0 ft
Gulfstar 40 Sailmaster
32.5 ft
Valiant 40 2
34.0 ft
Beam
Endeavour 40 ★
13.0 ft
Endeavour 40 Kth
13.0 ft
Gulfstar 40 Sailmaster
12.1 ft
Valiant 40 2
12.3 ft
Displacement
Endeavour 40 ★
25 lbs
Endeavour 40 Kth
25 lbs
Gulfstar 40 Sailmaster
20 lbs
Valiant 40 2
22 lbs
Ballast
Endeavour 40 ★
9 lbs
Endeavour 40 Kth
9 lbs
Gulfstar 40 Sailmaster
8 lbs
Valiant 40 2
7 lbs
Sail Area
Endeavour 40 ★
788 sq ft
Endeavour 40 Kth
852 sq ft
Gulfstar 40 Sailmaster
705 sq ft
Valiant 40 2
772 sq ft
Performance
PHRF Rating (lower = faster)
Endeavour 40 ★
147 s/nm
Endeavour 40 Kth
162 s/nm
Gulfstar 40 Sailmaster
—
Valiant 40 2
—
SA / Displacement (higher = more powerful)
Endeavour 40 ★
14.8
Endeavour 40 Kth
16.0
Gulfstar 40 Sailmaster
15.4
Valiant 40 2
15.6
Ballast / Disp (higher = stiffer)
Endeavour 40 ★
36.0 %
Endeavour 40 Kth
—
Gulfstar 40 Sailmaster
42.5 %
Valiant 40 2
34.2 %
Comfort Ratio (higher = more comfortable offshore)
Endeavour 40 ★
36.9
Endeavour 40 Kth
36.9
Gulfstar 40 Sailmaster
32.2
Valiant 40 2
34.3
Capsize Screening (lower = safer)
Endeavour 40 ★
1.78
Endeavour 40 Kth
1.78
Gulfstar 40 Sailmaster
1.78
Valiant 40 2
1.75
Displacement / Length (lower = lighter)
Endeavour 40 ★
340
Endeavour 40 Kth
—
Gulfstar 40 Sailmaster
260
Valiant 40 2
255
Hull Speed
Endeavour 40 ★
7.6 kts
Endeavour 40 Kth
7.6 kts
Gulfstar 40 Sailmaster
7.6 kts
Valiant 40 2
7.8 kts
Speed Number (higher = faster)
Endeavour 40 ★
1.3
Endeavour 40 Kth
1.3
Gulfstar 40 Sailmaster
—
Valiant 40 2
2.0
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