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Tiger 25 Westerly
Designer: John Butler  ·  Builder: Westerly Marine Ltd.  ·  First built: 1969
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About the Tiger 25 Westerly

Produced by the well-regarded British builder Westerly Marine, the Tiger 25 is a compact cruising sailboat that reflects the practical, seaworthy design philosophy that made Westerly a trusted name among weekend sailors and coastal cruisers throughout the latter half of the twentieth century. Built for the kind of sailor who values reliability and ease of handling over outright performance, this boat is well suited to coastal passages, estuary sailing, and relaxed family cruising in sheltered to semi-exposed waters. Westerly boats earned a strong reputation for solid construction and sensible layouts, and the Tiger 25 is generally consistent with that heritage. Its modest size makes it approachable for newer sailors while still offering enough capability for experienced hands looking for a manageable bluewater daysailer or weekender. Storage, stability, and a practical cockpit arrangement are typically among the strengths associated with Westerly designs of this era. While detailed specifications for the Tiger 25 are limited, its enduring presence in the used boat market speaks to its durability and the loyalty it inspires among owners who appreciate a no-nonsense British cruiser with genuine seakeeping ability.

Core Dimensions
LOA (Length Overall) 25.08 ft / 7.64 m
LWL (Waterline Length) 21.83 ft / 6.65 m
Beam 8.75 ft / 2.67 m
Max Draft 4.25 ft / 1.30 m
Displacement 5,264.00 lb / 2,388 kg
Ballast 2,240.00 lb / 1,016 kg
Sail Area (Reported) 318.00 ft² / 29.54 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer John Butler
Builder Westerly Marine Ltd.
First Built 1969
Last Built 1976
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
16.86
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
19.84
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
2.01
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. 6.26
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
2.4
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. 682.51
Rig Dimensions
I (Foretriangle Height) 32.5
J (Foretriangle Base) 10.1
P (Mainsail Luff) 28.0
E (Mainsail Foot) 11.0
SA Fore 164.13
SA Main 154.0
How It Compares

vs. Coronado 25, South Coast 25, Windrush 25 Westerly

This boat Similar boats
Dimensions
LOA
Tiger 25 Westerly ★
25.1 ft
Coronado 25
25.0 ft
South Coast 25
25.0 ft
Windrush 25 Westerly
25.1 ft
LWL
Tiger 25 Westerly ★
21.8 ft
Coronado 25
20.1 ft
South Coast 25
20.5 ft
Windrush 25 Westerly
21.0 ft
Beam
Tiger 25 Westerly ★
8.8 ft
Coronado 25
8.0 ft
South Coast 25
7.5 ft
Windrush 25 Westerly
7.4 ft
Displacement
Tiger 25 Westerly ★
5 lbs
Coronado 25
4 lbs
South Coast 25
4 lbs
Windrush 25 Westerly
4 lbs
Ballast
Tiger 25 Westerly ★
2 lbs
Coronado 25
2 lbs
South Coast 25
1 lbs
Windrush 25 Westerly
1 lbs
Sail Area
Tiger 25 Westerly ★
318 sq ft
Coronado 25
299 sq ft
South Coast 25
299 sq ft
Windrush 25 Westerly
Performance
PHRF Rating (lower = faster)
Tiger 25 Westerly ★
Coronado 25
231 s/nm
South Coast 25
258 s/nm
Windrush 25 Westerly
SA / Displacement (higher = more powerful)
Tiger 25 Westerly ★
16.9
Coronado 25
17.6
South Coast 25
18.4
Windrush 25 Westerly
Ballast / Disp (higher = stiffer)
Tiger 25 Westerly ★
Coronado 25
47.8 %
South Coast 25
42.9 %
Windrush 25 Westerly
Comfort Ratio (higher = more comfortable offshore)
Tiger 25 Westerly ★
19.8
Coronado 25
20.2
South Coast 25
20.3
Windrush 25 Westerly
23.2
Capsize Screening (lower = safer)
Tiger 25 Westerly ★
2.01
Coronado 25
1.94
South Coast 25
1.86
Windrush 25 Westerly
1.76
Displacement / Length (lower = lighter)
Tiger 25 Westerly ★
Coronado 25
249
South Coast 25
217
Windrush 25 Westerly
Hull Speed
Tiger 25 Westerly ★
6.3 kts
Coronado 25
6.0 kts
South Coast 25
6.1 kts
Windrush 25 Westerly
6.1 kts
Speed Number (higher = faster)
Tiger 25 Westerly ★
2.4
Coronado 25
2.3
South Coast 25
2.7
Windrush 25 Westerly
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