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Northern 75

 ·  Builder: Northern Yachts  ·  First built: 1970
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About the Northern 75

Designed for serious offshore and bluewater cruising, the Northern 75 is a substantial sailing yacht built to cover ocean miles in comfort and safety. As a larger vessel in the Northern Yacht range, it carries the reputation for sturdy construction and seaworthy design that the brand has cultivated through its lineup of capable passage-makers. With limited specification data widely available, much of what defines this yacht can be inferred from its place in the cruising world. Boats of this size and heritage are typically engineered with long-distance voyaging in mind, offering generous interior volume, capable sail handling, and the structural integrity needed to handle challenging offshore conditions. Sailors drawn to this model are likely prioritizing comfort at sea, range, and dependability over racing performance. For prospective buyers, the Northern 75 represents an appealing option if the goal is extended bluewater passages or liveaboard cruising. Due diligence on individual hull history and condition is especially worthwhile given the limited public specification records, and consulting with a qualified marine surveyor is strongly recommended before any purchase decision.

Core Dimensions
LOA (Length Overall) 25.25 ft / 7.70 m
LWL (Waterline Length) 19.25 ft / 5.87 m
Beam 8.17 ft / 2.49 m
Max Draft 4.00 ft / 1.22 m
Displacement 5,100.00 lb / 2,313 kg
Ballast 2,300.00 lb / 1,043 kg
Sail Area (Reported) 290.00 ft² / 26.94 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Builder Northern Yachts
First Built 1970
Related Sailboats Northern 25 · Cc 25 · Cal 2 25 · Tanzer 25 · Contessa 25 Peterson
Owner Reviews

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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
 15.71
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
 22.81
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
 1.9
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. 5.88
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
 1.51
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. 561.95
Rig Dimensions
I (Foretriangle Height) 31.5
J (Foretriangle Base) 10.4
P (Mainsail Luff) 26.5
E (Mainsail Foot) 9.5
SA Fore 163.8
SA Main 125.88
How It Compares

vs. Cal 2 25, Cc 25, Contessa 25 Peterson, Northern 25, Tanzer 25

This boat Similar boats
Dimensions
LOA
Northern 75 ★
25.3 ft
Cal 2 25
25.3 ft
Cc 25
25.2 ft
Contessa 25 Peterson
25.2 ft
Northern 25
25.3 ft
Tanzer 25
25.3 ft
LWL
Northern 75 ★
19.3 ft
Cal 2 25
22.0 ft
Cc 25
20.7 ft
Contessa 25 Peterson
21.0 ft
Northern 25
19.3 ft
Tanzer 25
21.8 ft
Beam
Northern 75 ★
8.2 ft
Cal 2 25
9.0 ft
Cc 25
8.6 ft
Contessa 25 Peterson
9.4 ft
Northern 25
8.2 ft
Tanzer 25
9.6 ft
Displacement
Northern 75 ★
5 lbs
Cal 2 25
4 lbs
Cc 25
4 lbs
Contessa 25 Peterson
4 lbs
Northern 25
5 lbs
Tanzer 25
4 lbs
Ballast
Northern 75 ★
2 lbs
Cal 2 25
2 lbs
Cc 25
1 lbs
Contessa 25 Peterson
2 lbs
Northern 25
2 lbs
Tanzer 25
1 lbs
Sail Area
Northern 75 ★
290 sq ft
Cal 2 25
314 sq ft
Cc 25
306 sq ft
Contessa 25 Peterson
350 sq ft
Northern 25
—
Tanzer 25
—
Performance
PHRF Rating (lower = faster)
Northern 75 ★
—
Cal 2 25
—
Cc 25
—
Contessa 25 Peterson
—
Northern 25
225 s/nm
Tanzer 25
180 s/nm
SA / Displacement (higher = more powerful)
Northern 75 ★
15.7
Cal 2 25
18.5
Cc 25
18.6
Contessa 25 Peterson
20.3
Northern 25
—
Tanzer 25
—
Ballast / Disp (higher = stiffer)
Northern 75 ★
—
Cal 2 25
44.4 %
Cc 25
44.2 %
Contessa 25 Peterson
45.7 %
Northern 25
45.1 %
Tanzer 25
39.3 %
Comfort Ratio (higher = more comfortable offshore)
Northern 75 ★
22.8
Cal 2 25
16.2
Cc 25
17.2
Contessa 25 Peterson
16.1
Northern 25
—
Tanzer 25
—
Capsize Screening (lower = safer)
Northern 75 ★
1.90
Cal 2 25
2.18
Cc 25
2.11
Contessa 25 Peterson
2.27
Northern 25
—
Tanzer 25
—
Displacement / Length (lower = lighter)
Northern 75 ★
—
Cal 2 25
188
Cc 25
217
Contessa 25 Peterson
221
Northern 25
319
Tanzer 25
180
Hull Speed
Northern 75 ★
5.9 kts
Cal 2 25
6.3 kts
Cc 25
6.1 kts
Contessa 25 Peterson
6.1 kts
Northern 25
—
Tanzer 25
—
Speed Number (higher = faster)
Northern 75 ★
1.5
Cal 2 25
3.0
Cc 25
2.7
Contessa 25 Peterson
—
Northern 25
—
Tanzer 25
—
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