2017 Dehler 46 vs 1979 Cal 39 — Comparison

2017 Dehler 462017 Dehler 46
VS
1979 Cal 391979 Cal 39

Specifications Side by Side

Specification2017 Dehler 461979 Cal 39
General
ManufacturerDehlerCal
Year20171979–1985
TypeSloopSloop
CountryGermanyUSA
DesignerJudel/VrolijkBill Lapworth / C. Raymond Hunt
Dimensions
LOA14.10 m (46.3 ft)11.89 m (39.0 ft)
LWL12.80 m (42.0 ft)9.60 m (31.5 ft)
Beam4.20 m (13.8 ft)3.66 m (12.0 ft)
Draft2.30 m (7.5 ft)1.83 m (6.0 ft)
Weight
Displacement10,500 kg (23,149 lbs)8,165 kg (18,001 lbs)
Ballast3,500 kg (7,716 lbs)3,402 kg (7,500 lbs)
Sailing
Sail Area96.0 m² (1,033 ft²)63.0 m² (678 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine55 HP30 HP
Fuel Capacity130 L (34.3 gal)114 L (30.1 gal)
Water Capacity250 L (66.0 gal)200 L (52.8 gal)
Accommodation
Berths87
Cabins32

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
2017 Dehler 46
20.34
1979 Cal 39
15.78
Ballast Ratio (Higher = more stability)
2017 Dehler 46
33.33
1979 Cal 39
41.67
Capsize Ratio (Lower = safer offshore)
2017 Dehler 46
0.77
1979 Cal 39
0.73
Comfort Ratio (Higher = gentler motion)
2017 Dehler 46
13.71
1979 Cal 39
21.05

Detailed Comparison

The 2017 Dehler 46 and 1979 Cal 39 represent two takes on sloop-rigged sailing. The 2017 Dehler 46 is a modern design by Dehler from Germany, while the 1979 Cal 39 is a 1970s offering from Cal from USA. The 2017 Dehler 46 was penned by Judel/Vrolijk. The 1979 Cal 39 was designed by Bill Lapworth / C. Raymond Hunt.

In terms of size, the 2017 Dehler 46 measures 14.10m (46.3ft) overall with a beam of 4.20m, compared to the 1979 Cal 39 at 11.89m (39.0ft) with a 3.66m beam. The 2017 Dehler 46 is 2.21m longer than the 1979 Cal 39. The 2017 Dehler 46 displaces approximately 29% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 2017 Dehler 46 has generous sail power for spirited sailing with an SA/D ratio of 20.34 and 96.0 m² of sail area. The 1979 Cal 39, with an SA/D of 15.78 and 63.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 2017 Dehler 46 has the edge in terms of raw sailing performance.

For comfort and safety, the 2017 Dehler 46 offers a firm, racing-oriented motion (comfort ratio: 13.7) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.77). The 1979 Cal 39 has a comfort ratio of 21.1 and a capsize screening value of 0.73. The ballast ratios are 33.3% for the 2017 Dehler 46 and 41.7% for the 1979 Cal 39, reflecting their respective approaches to stability.

Below deck, the 2017 Dehler 46 provides 8 berths in 3 cabins with 250L of water capacity and 130L of fuel. The 1979 Cal 39 offers 7 berths in 2 cabins with 200L water and 114L fuel capacity.

Verdict

For cruising: The 1979 Cal 39 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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