1979 Irwin 25 vs 1979 Westerly Fulmar — Comparison

1979 Irwin 25 1979 Irwin 25
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1979 Westerly Fulmar 1979 Westerly Fulmar

Specifications Side by Side

Specification 1979 Irwin 25 1979 Westerly Fulmar
General
Manufacturer Irwin Westerly
Year 1979–1984 1979–1986
Type Sloop Sloop
Country USA UK
Designer Ted Irwin Ed Dubois
Dimensions
LOA 7.62 m (25.0 ft) 9.75 m (32.0 ft)
LWL 6.10 m (20.0 ft) 8.00 m (26.2 ft)
Beam 2.59 m (8.5 ft) 3.20 m (10.5 ft)
Draft 1.14 m (3.7 ft) 1.07 m (3.5 ft)
Weight
Displacement 2,041 kg (4,500 lbs) 4,990 kg (11,001 lbs)
Ballast 816 kg (1,799 lbs) 1,814 kg (3,999 lbs)
Sailing
Sail Area 25.8 m² (278 ft²) 36.0 m² (388 ft²)
Hull Material Fiberglass Fiberglass
Keel Type Fin Bilge
Engine & Tanks
Engine 10 HP 18 HP
Fuel Capacity 30 L (7.9 gal) 68 L (18.0 gal)
Water Capacity 38 L (10.0 gal) 136 L (35.9 gal)
Accommodation
Berths 5 6
Cabins 1 2

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1979 Irwin 25
16.30
1979 Westerly Fulmar
12.53
Ballast Ratio (Higher = more stability)
1979 Irwin 25
39.98
1979 Westerly Fulmar
36.35
Capsize Ratio (Lower = safer offshore)
1979 Irwin 25
0.82
1979 Westerly Fulmar
0.75
Comfort Ratio (Higher = gentler motion)
1979 Irwin 25
20.55
1979 Westerly Fulmar
22.41

Detailed Comparison

The 1979 Irwin 25 and 1979 Westerly Fulmar represent two takes on sloop-rigged sailing. The 1979 Irwin 25 is a 1970s design by Irwin from USA, while the 1979 Westerly Fulmar is a 1970s offering from Westerly from UK. The 1979 Irwin 25 was penned by Ted Irwin. The 1979 Westerly Fulmar was designed by Ed Dubois.

In terms of size, the 1979 Irwin 25 measures 7.62m (25.0ft) overall with a beam of 2.59m, compared to the 1979 Westerly Fulmar at 9.75m (32.0ft) with a 3.20m beam. The 1979 Westerly Fulmar is 2.13m longer than the 1979 Irwin 25. The 1979 Westerly Fulmar displaces approximately 144% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1979 Irwin 25 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.30 and 25.8 m² of sail area. The 1979 Westerly Fulmar, with an SA/D of 12.53 and 36.0 m² of canvas, offers modest sail power for its displacement. The 1979 Irwin 25 has the edge in terms of raw sailing performance.

For comfort and safety, the 1979 Irwin 25 offers a moderate motion comfort level (comfort ratio: 20.6) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.82). The 1979 Westerly Fulmar has a comfort ratio of 22.4 and a capsize screening value of 0.75. The ballast ratios are 40.0% for the 1979 Irwin 25 and 36.4% for the 1979 Westerly Fulmar, reflecting their respective approaches to stability.

Below deck, the 1979 Irwin 25 provides 5 berths in 1 cabin with 38L of water capacity and 30L of fuel. The 1979 Westerly Fulmar offers 6 berths in 2 cabins with 136L water and 68L fuel capacity.

Verdict

For cruising: The 1979 Westerly Fulmar is the better choice for comfortable cruising thanks to its higher comfort ratio, offering a gentler motion at sea that crews will appreciate on longer passages.

For racing: The 1979 Irwin 25 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1979 Westerly Fulmar offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.

Compare Different Boats

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