1979 Islander 36 vs 2004 Najad 405 — Comparison

1979 Islander 361979 Islander 36
VS
2004 Najad 405

Specifications Side by Side

Specification1979 Islander 362004 Najad 405
General
ManufacturerIslanderNajad
Year1979–19852004–2012
TypeSloopSloop
CountryUSASweden
DesignerAlan GurneyJudel/Vrolijk
Dimensions
LOA10.97 m (36.0 ft)12.40 m (40.7 ft)
LWL8.84 m (29.0 ft)10.40 m (34.1 ft)
Beam3.28 m (10.8 ft)3.82 m (12.5 ft)
Draft1.68 m (5.5 ft)2.00 m (6.6 ft)
Weight
Displacement6,350 kg (13,999 lbs)9,200 kg (20,283 lbs)
Ballast2,722 kg (6,001 lbs)3,600 kg (7,937 lbs)
Sailing
Sail Area54.2 m² (583 ft²)73.0 m² (786 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine22 HP55 HP
Fuel Capacity76 L (20.1 gal)200 L (52.8 gal)
Water Capacity151 L (39.9 gal)350 L (92.5 gal)
Accommodation
Berths77
Cabins23

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1979 Islander 36
16.06
2004 Najad 405
16.89
Ballast Ratio (Higher = more stability)
1979 Islander 36
42.87
2004 Najad 405
39.13
Capsize Ratio (Lower = safer offshore)
1979 Islander 36
0.71
2004 Najad 405
0.73
Comfort Ratio (Higher = gentler motion)
1979 Islander 36
22.32
2004 Najad 405
19.60

Detailed Comparison

The 1979 Islander 36 and 2004 Najad 405 represent two takes on sloop-rigged sailing. The 1979 Islander 36 is a 1970s design by Islander from USA, while the 2004 Najad 405 is a 2000s offering from Najad from Sweden. The 1979 Islander 36 was penned by Alan Gurney. The 2004 Najad 405 was designed by Judel/Vrolijk.

In terms of size, the 1979 Islander 36 measures 10.97m (36.0ft) overall with a beam of 3.28m, compared to the 2004 Najad 405 at 12.40m (40.7ft) with a 3.82m beam. The 2004 Najad 405 is 1.43m longer than the 1979 Islander 36. The 2004 Najad 405 displaces approximately 45% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1979 Islander 36 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.06 and 54.2 m² of sail area. The 2004 Najad 405, with an SA/D of 16.89 and 73.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 2004 Najad 405 has the edge in terms of raw sailing performance.

For comfort and safety, the 1979 Islander 36 offers a moderate motion comfort level (comfort ratio: 22.3) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.71). The 2004 Najad 405 has a comfort ratio of 19.6 and a capsize screening value of 0.73. The ballast ratios are 42.9% for the 1979 Islander 36 and 39.1% for the 2004 Najad 405, reflecting their respective approaches to stability.

Below deck, the 1979 Islander 36 provides 7 berths in 2 cabins with 151L of water capacity and 76L of fuel. The 2004 Najad 405 offers 7 berths in 3 cabins with 350L water and 200L fuel capacity.

Verdict

For cruising: The 1979 Islander 36 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 2004 Najad 405 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: Both boats provide similar accommodation, making either a viable choice for living aboard. Consider water and fuel capacity for extended stays away from marinas.

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Or view individual specs: 1979 Islander 36 · 2004 Najad 405