1973 Islander 37 vs 2017 Dehler 46 — Comparison

1973 Islander 371973 Islander 37
VS
2017 Dehler 462017 Dehler 46

Specifications Side by Side

Specification1973 Islander 372017 Dehler 46
General
ManufacturerIslanderDehler
Year1973–19782017
TypeSloopSloop
CountryUSAGermany
DesignerAlan GurneyJudel/Vrolijk
Dimensions
LOA11.28 m (37.0 ft)14.10 m (46.3 ft)
LWL8.69 m (28.5 ft)12.80 m (42.0 ft)
Beam3.28 m (10.8 ft)4.20 m (13.8 ft)
Draft1.68 m (5.5 ft)2.30 m (7.5 ft)
Weight
Displacement6,577 kg (14,500 lbs)10,500 kg (23,149 lbs)
Ballast2,722 kg (6,001 lbs)3,500 kg (7,716 lbs)
Sailing
Sail Area54.5 m² (587 ft²)96.0 m² (1,033 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine22 HP55 HP
Fuel Capacity76 L (20.1 gal)130 L (34.3 gal)
Water Capacity114 L (30.1 gal)250 L (66.0 gal)
Accommodation
Berths68
Cabins23

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1973 Islander 37
15.77
2017 Dehler 46
20.34
Ballast Ratio (Higher = more stability)
1973 Islander 37
41.39
2017 Dehler 46
33.33
Capsize Ratio (Lower = safer offshore)
1973 Islander 37
0.70
2017 Dehler 46
0.77
Comfort Ratio (Higher = gentler motion)
1973 Islander 37
23.18
2017 Dehler 46
13.71

Detailed Comparison

The 1973 Islander 37 and 2017 Dehler 46 represent two takes on sloop-rigged sailing. The 1973 Islander 37 is a 1970s design by Islander from USA, while the 2017 Dehler 46 is a modern offering from Dehler from Germany. The 1973 Islander 37 was penned by Alan Gurney. The 2017 Dehler 46 was designed by Judel/Vrolijk.

In terms of size, the 1973 Islander 37 measures 11.28m (37.0ft) overall with a beam of 3.28m, compared to the 2017 Dehler 46 at 14.10m (46.3ft) with a 4.20m beam. The 2017 Dehler 46 is 2.82m longer than the 1973 Islander 37. The 2017 Dehler 46 displaces approximately 60% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1973 Islander 37 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.77 and 54.5 m² of sail area. The 2017 Dehler 46, with an SA/D of 20.34 and 96.0 m² of canvas, offers generous sail power for spirited sailing. The 2017 Dehler 46 has the edge in terms of raw sailing performance.

For comfort and safety, the 1973 Islander 37 offers a moderate motion comfort level (comfort ratio: 23.2) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.70). The 2017 Dehler 46 has a comfort ratio of 13.7 and a capsize screening value of 0.77. The ballast ratios are 41.4% for the 1973 Islander 37 and 33.3% for the 2017 Dehler 46, reflecting their respective approaches to stability.

Below deck, the 1973 Islander 37 provides 6 berths in 2 cabins with 114L of water capacity and 76L of fuel. The 2017 Dehler 46 offers 8 berths in 3 cabins with 250L water and 130L fuel capacity.

Verdict

For cruising: The 1973 Islander 37 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 2017 Dehler 46 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 2017 Dehler 46 offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.

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Or view individual specs: 1973 Islander 37 · 2017 Dehler 46