1984 Dehler 25 vs 2005 Dehler 34 — Comparison

1984 Dehler 25
VS
2005 Dehler 342005 Dehler 34

Specifications Side by Side

Specification1984 Dehler 252005 Dehler 34
General
ManufacturerDehlerDehler
Year1984–19922005–2012
TypeSloopSloop
CountryGermanyGermany
DesignerE.G. van de StadtJudel/Vrolijk
Dimensions
LOA7.50 m (24.6 ft)10.30 m (33.8 ft)
LWL6.30 m (20.7 ft)9.10 m (29.9 ft)
Beam2.50 m (8.2 ft)3.25 m (10.7 ft)
Draft1.35 m (4.4 ft)1.80 m (5.9 ft)
Weight
Displacement1,800 kg (3,968 lbs)4,800 kg (10,582 lbs)
Ballast680 kg (1,499 lbs)1,700 kg (3,748 lbs)
Sailing
Sail Area22.5 m² (242 ft²)50.0 m² (538 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine8 HP18 HP
Fuel Capacity25 L (6.6 gal)50 L (13.2 gal)
Water Capacity40 L (10.6 gal)100 L (26.4 gal)
Accommodation
Berths46
Cabins12

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1984 Dehler 25
15.46
2005 Dehler 34
17.85
Ballast Ratio (Higher = more stability)
1984 Dehler 25
37.78
2005 Dehler 34
35.42
Capsize Ratio (Lower = safer offshore)
1984 Dehler 25
0.82
2005 Dehler 34
0.77
Comfort Ratio (Higher = gentler motion)
1984 Dehler 25
18.41
2005 Dehler 34
17.15

Detailed Comparison

The 1984 Dehler 25 and 2005 Dehler 34 represent two takes on sloop-rigged sailing. The 1984 Dehler 25 is a 1980s design by Dehler from Germany, while the 2005 Dehler 34 is a 2000s offering from Dehler from Germany. The 1984 Dehler 25 was penned by E.G. van de Stadt. The 2005 Dehler 34 was designed by Judel/Vrolijk.

In terms of size, the 1984 Dehler 25 measures 7.50m (24.6ft) overall with a beam of 2.50m, compared to the 2005 Dehler 34 at 10.30m (33.8ft) with a 3.25m beam. The 2005 Dehler 34 is 2.80m longer than the 1984 Dehler 25. The 2005 Dehler 34 displaces approximately 167% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1984 Dehler 25 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.46 and 22.5 m² of sail area. The 2005 Dehler 34, with an SA/D of 17.85 and 50.0 m² of canvas, offers good sail power for versatile performance. The 2005 Dehler 34 has the edge in terms of raw sailing performance.

For comfort and safety, the 1984 Dehler 25 offers a firm, racing-oriented motion (comfort ratio: 18.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.82). The 2005 Dehler 34 has a comfort ratio of 17.2 and a capsize screening value of 0.77. The ballast ratios are 37.8% for the 1984 Dehler 25 and 35.4% for the 2005 Dehler 34, reflecting their respective approaches to stability.

Below deck, the 1984 Dehler 25 provides 4 berths in 1 cabin with 40L of water capacity and 25L of fuel. The 2005 Dehler 34 offers 6 berths in 2 cabins with 100L water and 50L fuel capacity.

Verdict

For cruising: The 1984 Dehler 25 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 2005 Dehler 34 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 2005 Dehler 34 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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