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Endeavour 51
Designer: Johan Valentijen  ·  Builder: Endeavour Yacht Corp. (Usa)  ·  First built: 1985
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About the Endeavour 51

This substantial cruising sailboat emerged from Endeavour Yacht Corporation during the 1980s as part of their larger yacht lineup designed for serious blue-water sailing. Built with a focus on comfort and seaworthiness rather than racing performance, the model represents classic American cruising yacht design philosophy of that era. The hull design emphasizes stability and interior volume, making it well-suited for extended offshore passages and live-aboard cruising. Its generous beam provides exceptional interior space while maintaining good sailing characteristics in varied conditions. The boat's construction reflects the robust building standards typical of Endeavour's production boats, with attention paid to both structural integrity and finish quality. While detailed specifications remain limited, the size and era suggest this yacht would appeal to experienced sailors seeking a capable passage-maker with comfortable accommodations. The design likely incorporates a traditional fin keel and spade rudder configuration, common among serious cruising boats of this vintage. For prospective buyers considering coastal cruising or offshore voyaging, this model offers the blend of size, comfort, and seaworthiness that made Endeavour yachts popular among the cruising community during their production years.

Market Price Estimate Beta
Small sample size. This estimate is based on fewer than 5 listings and may not be representative of the true market. Use with caution.
$129,000 – $129,000
typical asking price
Median $129,000  ·  1 listing used
All listings
$129,000 – $129,000 1
Rate a listing price
$
About this estimate
  • Prices are based on recent asking prices from public listings — not actual sale prices, which are typically lower.
  • Condition is not factored in. A well-maintained boat with new sails and engine can be worth significantly more than a project boat of the same model.
  • Location affects price. Boats in landlocked states or areas with fewer buyers often sell for less than those on the coast.
  • Year of manufacture is not filtered. Older examples of this model will generally be priced lower than newer ones.
  • Included equipment varies widely. A boat with a full suite of electronics, dodger, and new standing rigging may command a large premium.
  • Outliers are automatically excluded using statistical filtering to improve accuracy, but some bad data may remain.
Core Dimensions
LOA (Length Overall) 51.00 ft / 15.54 m
LWL (Waterline Length) 42.25 ft / 12.88 m
Beam 15.00 ft / 4.57 m
Max Draft 5.50 ft / 1.68 m
Displacement 37,000.00 lb / 16,783 kg
Ballast 17,300.00 lb / 7,847 kg
Design & Construction
Hull Type Wing Keel
Rigging Type Masthead Sloop
Construction FG
Designer Johan Valentijen
Builder Endeavour Yacht Corp. (USA)
First Built 1985
Owner Reviews

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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
75
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
46.76
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
219.01
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. 13.58 pounds/inch
Rig Dimensions
I (Foretriangle Height) 15.60
J (Foretriangle Base) 21.70 ft / 6.61 m
P (Mainsail Luff) 1,078.00 ft² / 100.15 m²
E (Mainsail Foot) Perkiins
Engine & Accommodations
Fuel Capacity 160 gals / 606 L
Water Capacity 400 gals / 1,514 L
How It Compares

vs. Beneteau 50, Little Harbor 51, Valiant 50

This boat Similar boats
Dimensions
LOA
Endeavour 51 ★
51.0 ft
Beneteau 50
50.8 ft
Little Harbor 51
50.6 ft
Valiant 50
50.7 ft
LWL
Endeavour 51 ★
42.3 ft
Beneteau 50
45.4 ft
Little Harbor 51
41.0 ft
Valiant 50
40.3 ft
Beam
Endeavour 51 ★
15.0 ft
Beneteau 50
14.7 ft
Little Harbor 51
15.3 ft
Valiant 50
13.8 ft
Displacement
Endeavour 51 ★
37 lbs
Beneteau 50
28 lbs
Little Harbor 51
45 lbs
Valiant 50
35 lbs
Ballast
Endeavour 51 ★
17 lbs
Beneteau 50
9 lbs
Little Harbor 51
18 lbs
Valiant 50
11 lbs
Sail Area
Endeavour 51 ★
Beneteau 50
1 sq ft
Little Harbor 51
1 sq ft
Valiant 50
Performance
PHRF Rating (lower = faster)
Endeavour 51 ★
75 s/nm
Beneteau 50
77 s/nm
Little Harbor 51
Valiant 50
102 s/nm
SA / Displacement (higher = more powerful)
Endeavour 51 ★
Beneteau 50
17.6
Little Harbor 51
15.3
Valiant 50
Ballast / Disp (higher = stiffer)
Endeavour 51 ★
46.8 %
Beneteau 50
Little Harbor 51
Valiant 50
31.0 %
Comfort Ratio (higher = more comfortable offshore)
Endeavour 51 ★
Beneteau 50
26.4
Little Harbor 51
42.8
Valiant 50
Capsize Screening (lower = safer)
Endeavour 51 ★
Beneteau 50
1.92
Little Harbor 51
1.71
Valiant 50
Displacement / Length (lower = lighter)
Endeavour 51 ★
219
Beneteau 50
Little Harbor 51
Valiant 50
243
Hull Speed
Endeavour 51 ★
Beneteau 50
9.0 kts
Little Harbor 51
8.6 kts
Valiant 50
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