1972 Islander 24 vs 1984 Dehler 25 — Comparison

1972 Islander 241972 Islander 24
VS
1984 Dehler 25

Specifications Side by Side

Specification1972 Islander 241984 Dehler 25
General
ManufacturerIslanderDehler
Year1972–19771984–1992
TypeSloopSloop
CountryUSAGermany
DesignerAlan GurneyE.G. van de Stadt
Dimensions
LOA7.32 m (24.0 ft)7.50 m (24.6 ft)
LWL5.94 m (19.5 ft)6.30 m (20.7 ft)
Beam2.36 m (7.7 ft)2.50 m (8.2 ft)
Draft1.14 m (3.7 ft)1.35 m (4.4 ft)
Weight
Displacement1,588 kg (3,501 lbs)1,800 kg (3,968 lbs)
Ballast635 kg (1,400 lbs)680 kg (1,499 lbs)
Sailing
Sail Area23.5 m² (253 ft²)22.5 m² (242 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine7 HP8 HP
Fuel Capacity23 L (6.1 gal)25 L (6.6 gal)
Water Capacity38 L (10.0 gal)40 L (10.6 gal)
Accommodation
Berths44
Cabins11

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1972 Islander 24
17.55
1984 Dehler 25
15.46
Ballast Ratio (Higher = more stability)
1972 Islander 24
39.99
1984 Dehler 25
37.78
Capsize Ratio (Lower = safer offshore)
1972 Islander 24
0.81
1984 Dehler 25
0.82
Comfort Ratio (Higher = gentler motion)
1972 Islander 24
19.26
1984 Dehler 25
18.41

Detailed Comparison

The 1972 Islander 24 and 1984 Dehler 25 represent two takes on sloop-rigged sailing. The 1972 Islander 24 is a 1970s design by Islander from USA, while the 1984 Dehler 25 is a 1980s offering from Dehler from Germany. The 1972 Islander 24 was penned by Alan Gurney. The 1984 Dehler 25 was designed by E.G. van de Stadt.

In terms of size, the 1972 Islander 24 measures 7.32m (24.0ft) overall with a beam of 2.36m, compared to the 1984 Dehler 25 at 7.50m (24.6ft) with a 2.50m beam. The 1984 Dehler 25 is 0.18m longer than the 1972 Islander 24. The 1984 Dehler 25 displaces approximately 13% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1972 Islander 24 has good sail power for versatile performance with an SA/D ratio of 17.55 and 23.5 m² of sail area. The 1984 Dehler 25, with an SA/D of 15.46 and 22.5 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1972 Islander 24 has the edge in terms of raw sailing performance.

For comfort and safety, the 1972 Islander 24 offers a firm, racing-oriented motion (comfort ratio: 19.3) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.81). The 1984 Dehler 25 has a comfort ratio of 18.4 and a capsize screening value of 0.82. The ballast ratios are 40.0% for the 1972 Islander 24 and 37.8% for the 1984 Dehler 25, reflecting their respective approaches to stability.

Below deck, the 1972 Islander 24 provides 4 berths in 1 cabin with 38L of water capacity and 23L of fuel. The 1984 Dehler 25 offers 4 berths in 1 cabin with 40L water and 25L fuel capacity.

Verdict

For cruising: The 1972 Islander 24 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 1972 Islander 24 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: 1972 Islander 24 · 1984 Dehler 25