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Yankee 30 Mkii 98
Designer: Sparkman & Stephens  ·  Builder: Yankee Yachts Inc. (Usa)  ·  First built: 1970
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About the Yankee 30 Mkii 98

Designed by the legendary naval architecture firm Sparkman & Stephens and built by Yankee Yachts from 1970 to 1975, this 30-footer represents classic American yacht design from sailing's golden era. With her moderate 8,700-pound displacement and substantial 4,130-pound ballast ratio, she offers the stability and sea-kindly motion that made Sparkman & Stephens designs famous worldwide. The masthead sloop rig and 430 square feet of sail area provide respectable performance while remaining manageable for small crews. Her fin keel with rudder-on-skeg configuration delivers good tracking and directional stability, particularly valuable for coastal cruising and longer passages. The generous 9-foot beam creates comfortable interior volume while maintaining elegant proportions. With a comfort ratio of 28.69, this yacht falls into the moderate range, indicating she'll handle ocean conditions well without the extreme motion of lighter boats. The capsize screening value of 1.75 suggests good stability for offshore work, while her theoretical hull speed of 6.43 knots provides adequate passage-making capability. Built during Yankee Yachts' reputation for solid fiberglass construction, these boats are well-suited for serious coastal cruising and limited offshore passages. They represent an excellent choice for sailors seeking proven design pedigree with comfortable, capable cruising characteristics.

Core Dimensions
LOA (Length Overall) 30.00 ft / 9.14 m
LWL (Waterline Length) 23.00 ft / 7.01 m
Beam 9.00 ft / 2.74 m
Max Draft 4.80 ft / 1.46 m
Displacement 8,700.00 lb / 3,946 kg
Ballast 4,130.00 lb / 1,873 kg
Ballast Type Lead
Sail Area (Reported) 430.00 ft² / 39.95 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Sparkman & Stephens
Builder Yankee Yachts Inc. (USA)
First Built 1970
Last Built 1975
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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
16.32
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
47.47
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
319.22
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
28.69
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
1.75
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. 6.43 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
1.56
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. 739.63 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. 16.3
Rig Dimensions
I (Foretriangle Height) 40.00 ft / 12.19 m
J (Foretriangle Base) 12.75 ft / 3.89 m
P (Mainsail Luff) 34.90 ft / 10.64 m
E (Mainsail Foot) 10.00 ft / 3.05 m
SA Fore 255.00 ft² / 23.69 m²
SA Main 174.50 ft² / 16.21 m²
SA Total (100%) 429.50 ft² / 39.90 m²
Est. Forestay Length 41.98 ft / 12.80 m
Engine & Accommodations
Engine Make Universal
Engine Model Atomic 4
Engine Type Gas
How It Compares

vs. Cal 30, Capri 30 Chris Craft, Columbia 30, Irwin 30 Competition, Newport 30 2

This boat Similar boats
Dimensions
LOA
Yankee 30 Mkii 98 ★
30.0 ft
Cal 30
30.0 ft
Capri 30 Chris Craft
30.0 ft
Columbia 30
30.0 ft
Irwin 30 Competition
30.0 ft
Newport 30 2
30.0 ft
LWL
Yankee 30 Mkii 98 ★
23.0 ft
Cal 30
24.5 ft
Capri 30 Chris Craft
25.0 ft
Columbia 30
26.5 ft
Irwin 30 Competition
26.9 ft
Newport 30 2
26.5 ft
Beam
Yankee 30 Mkii 98 ★
9.0 ft
Cal 30
10.0 ft
Capri 30 Chris Craft
9.7 ft
Columbia 30
9.5 ft
Irwin 30 Competition
10.2 ft
Newport 30 2
10.7 ft
Displacement
Yankee 30 Mkii 98 ★
8 lbs
Cal 30
9 lbs
Capri 30 Chris Craft
11 lbs
Columbia 30
10 lbs
Irwin 30 Competition
10 lbs
Newport 30 2
8 lbs
Ballast
Yankee 30 Mkii 98 ★
4 lbs
Cal 30
3 lbs
Capri 30 Chris Craft
4 lbs
Columbia 30
Irwin 30 Competition
4 lbs
Newport 30 2
2 lbs
Sail Area
Yankee 30 Mkii 98 ★
430 sq ft
Cal 30
420 sq ft
Capri 30 Chris Craft
474 sq ft
Columbia 30
515 sq ft
Irwin 30 Competition
474 sq ft
Newport 30 2
414 sq ft
Performance
PHRF Rating (lower = faster)
Yankee 30 Mkii 98 ★
Cal 30
183 s/nm
Capri 30 Chris Craft
Columbia 30
180 s/nm
Irwin 30 Competition
Newport 30 2
SA / Displacement (higher = more powerful)
Yankee 30 Mkii 98 ★
16.3
Cal 30
14.9
Capri 30 Chris Craft
14.7
Columbia 30
16.9
Irwin 30 Competition
16.4
Newport 30 2
16.6
Ballast / Disp (higher = stiffer)
Yankee 30 Mkii 98 ★
47.5 %
Cal 30
Capri 30 Chris Craft
Columbia 30
Irwin 30 Competition
46.0 %
Newport 30 2
Comfort Ratio (higher = more comfortable offshore)
Yankee 30 Mkii 98 ★
28.7
Cal 30
26.4
Capri 30 Chris Craft
33.3
Columbia 30
30.2
Irwin 30 Competition
25.3
Newport 30 2
19.2
Capsize Screening (lower = safer)
Yankee 30 Mkii 98 ★
1.75
Cal 30
1.89
Capri 30 Chris Craft
1.70
Columbia 30
1.72
Irwin 30 Competition
1.89
Newport 30 2
2.14
Displacement / Length (lower = lighter)
Yankee 30 Mkii 98 ★
319
Cal 30
Capri 30 Chris Craft
Columbia 30
Irwin 30 Competition
228
Newport 30 2
Hull Speed
Yankee 30 Mkii 98 ★
6.4 kts
Cal 30
6.6 kts
Capri 30 Chris Craft
6.7 kts
Columbia 30
6.9 kts
Irwin 30 Competition
7.0 kts
Newport 30 2
6.9 kts
Speed Number (higher = faster)
Yankee 30 Mkii 98 ★
1.6
Cal 30
1.6
Capri 30 Chris Craft
1.3
Columbia 30
2.1
Irwin 30 Competition
2.3
Newport 30 2
2.8
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