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Xl 2 42 Allied
Designer: Sparkman & Stephens  ·  Builder: Allied Boat Co. (Usa)  ·  First built: 1969
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About the Xl 2 42 Allied

Designed by the legendary Sparkman & Stephens naval architecture firm, this classic cruising sailboat emerged during the golden age of fiberglass yacht construction. Built by Allied Boat Company from 1969 to 1982, the XL 2 42 represents solid American craftsmanship with a traditional approach to offshore sailing. The masthead sloop rig and generous sail area of 763 square feet provide excellent performance for a boat of this displacement class. With a deep 8.33-foot draft and substantial ballast-to-displacement ratio, she offers the stability and seaworthiness that Sparkman & Stephens designs are renowned for. The keel/centerboard configuration combines the tracking ability of a fixed keel with the shallow-water versatility of a centerboard system. At 17,220 pounds displacement with 7,100 pounds of ballast, this yacht strikes an appealing balance between cruising comfort and sailing performance. Her moderate beam of 11.50 feet ensures reasonable dock compatibility while providing adequate interior volume. The comfort ratio of 31.42 suggests excellent motion characteristics in seaway conditions, making her well-suited for extended coastal cruising and offshore passages. The solid fiberglass laminate construction reflects the quality standards of the era, when boats were built to last decades rather than years.

Core Dimensions
LOA (Length Overall) 41.50 ft / 12.65 m
LWL (Waterline Length) 29.00 ft / 8.84 m
Beam 11.50 ft / 3.51 m
Max Draft 8.33 ft / 2.54 m
Min Draft 4.17 ft / 1.27 m
Displacement 17,220.00 lb / 7,811 kg
Ballast 7,100.00 lb / 3,221 kg
Ballast Type Lead
Sail Area (Reported) 763.00 ft² / 70.89 m²
Design & Construction
Hull Type Keel/Cbrd.
Rigging Type Masthead Sloop
Construction FG/solid laminate
Designer Sparkman & Stephens
Builder Allied Boat Co. (USA)
First Built 1969
Last Built 1982
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Performance Ratios
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
18.38
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
41.23
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
315.2
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
31.42
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. 7.22 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
1.73
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. 1,191.63 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. 18.37
Rig Dimensions
I (Foretriangle Height) 48.00 ft / 14.63 m
J (Foretriangle Base) 16.50 ft / 5.03 m
P (Mainsail Luff) 42.50 ft / 12.95 m
E (Mainsail Foot) 17.25 ft / 5.26 m
SA Fore 396.00 ft² / 36.79 m²
SA Main 366.56 ft² / 34.05 m²
SA Total (100%) 762.56 ft² / 70.84 m²
Est. Forestay Length 50.76 ft / 15.47 m
Engine & Accommodations
Engine Make Westerbeke
Engine Type Diesel
Horsepower 40
Fuel Capacity 30 gals / 114 L
Water Capacity 100 gals / 379 L
How It Compares

vs. Contest 42, Ericson 41, Passport 41

This boat Similar boats
Dimensions
LOA
Xl 2 42 Allied ★
41.5 ft
Contest 42
41.3 ft
Ericson 41
41.3 ft
Passport 41
41.3 ft
LWL
Xl 2 42 Allied ★
29.0 ft
Contest 42
32.8 ft
Ericson 41
29.2 ft
Passport 41
33.4 ft
Beam
Xl 2 42 Allied ★
11.5 ft
Contest 42
12.7 ft
Ericson 41
10.7 ft
Passport 41
12.7 ft
Displacement
Xl 2 42 Allied ★
17 lbs
Contest 42
24 lbs
Ericson 41
17 lbs
Passport 41
22 lbs
Ballast
Xl 2 42 Allied ★
7 lbs
Contest 42
10 lbs
Ericson 41
8 lbs
Passport 41
8 lbs
Sail Area
Xl 2 42 Allied ★
763 sq ft
Contest 42
660 sq ft
Ericson 41
Passport 41
Performance
PHRF Rating (lower = faster)
Xl 2 42 Allied ★
Contest 42
174 s/nm
Ericson 41
135 s/nm
Passport 41
132 s/nm
SA / Displacement (higher = more powerful)
Xl 2 42 Allied ★
18.4
Contest 42
12.7
Ericson 41
Passport 41
Ballast / Disp (higher = stiffer)
Xl 2 42 Allied ★
41.2 %
Contest 42
43.6 %
Ericson 41
46.1 %
Passport 41
37.3 %
Comfort Ratio (higher = more comfortable offshore)
Xl 2 42 Allied ★
31.4
Contest 42
36.0
Ericson 41
Passport 41
Capsize Screening (lower = safer)
Xl 2 42 Allied ★
1.78
Contest 42
1.75
Ericson 41
Passport 41
Displacement / Length (lower = lighter)
Xl 2 42 Allied ★
315
Contest 42
305
Ericson 41
320
Passport 41
272
Hull Speed
Xl 2 42 Allied ★
7.2 kts
Contest 42
7.7 kts
Ericson 41
Passport 41
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