1977 Nautor Swan 47 vs 2017 Dehler 46 — Comparison

1977 Nautor Swan 471977 Nautor Swan 47
VS
2017 Dehler 462017 Dehler 46

Specifications Side by Side

Specification1977 Nautor Swan 472017 Dehler 46
General
ManufacturerNautor SwanDehler
Year1977–19852017
TypeSloopSloop
CountryFinlandGermany
DesignerSparkman & StephensJudel/Vrolijk
Dimensions
LOA14.33 m (47.0 ft)14.10 m (46.3 ft)
LWL10.67 m (35.0 ft)12.80 m (42.0 ft)
Beam4.09 m (13.4 ft)4.20 m (13.8 ft)
Draft2.29 m (7.5 ft)2.30 m (7.5 ft)
Weight
Displacement14,969 kg (33,001 lbs)10,500 kg (23,149 lbs)
Ballast6,350 kg (13,999 lbs)3,500 kg (7,716 lbs)
Sailing
Sail Area89.2 m² (960 ft²)96.0 m² (1,033 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine55 HP55 HP
Fuel Capacity227 L (60.0 gal)130 L (34.3 gal)
Water Capacity454 L (119.9 gal)250 L (66.0 gal)
Accommodation
Berths78
Cabins33

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1977 Nautor Swan 47
14.92
2017 Dehler 46
20.34
Ballast Ratio (Higher = more stability)
1977 Nautor Swan 47
42.42
2017 Dehler 46
33.33
Capsize Ratio (Lower = safer offshore)
1977 Nautor Swan 47
0.67
2017 Dehler 46
0.77
Comfort Ratio (Higher = gentler motion)
1977 Nautor Swan 47
25.44
2017 Dehler 46
13.71

Detailed Comparison

The 1977 Nautor Swan 47 and 2017 Dehler 46 represent two takes on sloop-rigged sailing. The 1977 Nautor Swan 47 is a 1970s design by Nautor Swan from Finland, while the 2017 Dehler 46 is a modern offering from Dehler from Germany. The 1977 Nautor Swan 47 was penned by Sparkman & Stephens. The 2017 Dehler 46 was designed by Judel/Vrolijk.

In terms of size, the 1977 Nautor Swan 47 measures 14.33m (47.0ft) overall with a beam of 4.09m, compared to the 2017 Dehler 46 at 14.10m (46.3ft) with a 4.20m beam. The 1977 Nautor Swan 47 is 0.23m longer than the 2017 Dehler 46. The 1977 Nautor Swan 47 displaces approximately 43% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1977 Nautor Swan 47 has modest sail power for its displacement with an SA/D ratio of 14.92 and 89.2 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 1977 Nautor Swan 47 offers a moderate motion comfort level (comfort ratio: 25.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.67). The 2017 Dehler 46 has a comfort ratio of 13.7 and a capsize screening value of 0.77. The ballast ratios are 42.4% for the 1977 Nautor Swan 47 and 33.3% for the 2017 Dehler 46, reflecting their respective approaches to stability.

Below deck, the 1977 Nautor Swan 47 provides 7 berths in 3 cabins with 454L of water capacity and 227L of fuel. The 2017 Dehler 46 offers 8 berths in 3 cabins with 250L water and 130L fuel capacity.

Verdict

For cruising: The 1977 Nautor Swan 47 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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