1963 Cal 40 vs Dufour 45E — Comparison

1963 Cal 401963 Cal 40
VS
Dufour 45EDufour 45E

Specifications Side by Side

Specification1963 Cal 40Dufour 45E
General
ManufacturerCalDufour
Year1963–19722008–2011
TypeSloopSloop
CountryUSAFrance
DesignerBill LapworthUmberto Felci
Dimensions
LOA12.19 m (40.0 ft)13.80 m (45.3 ft)
LWL9.14 m (30.0 ft)11.90 m (39.0 ft)
Beam3.35 m (11.0 ft)4.20 m (13.8 ft)
Draft1.83 m (6.0 ft)2.10 m (6.9 ft)
Weight
Displacement7,030 kg (15,498 lbs)10,500 kg (23,149 lbs)
Ballast2,722 kg (6,001 lbs)3,200 kg (7,055 lbs)
Sailing
Sail Area61.3 m² (660 ft²)88.0 m² (947 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine22 HP55 HP
Fuel Capacity76 L (20.1 gal)200 L (52.8 gal)
Water Capacity114 L (30.1 gal)380 L (100.4 gal)
Accommodation
Berths68
Cabins23

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1963 Cal 40
16.97
Dufour 45E
18.64
Ballast Ratio (Higher = more stability)
1963 Cal 40
38.72
Dufour 45E
30.48
Capsize Ratio (Lower = safer offshore)
1963 Cal 40
0.70
Dufour 45E
0.77
Comfort Ratio (Higher = gentler motion)
1963 Cal 40
21.35
Dufour 45E
15.34

Detailed Comparison

The 1963 Cal 40 and Dufour 45E represent two takes on sloop-rigged sailing. The 1963 Cal 40 is a classic design by Cal from USA, while the Dufour 45E is a 2000s offering from Dufour from France. The 1963 Cal 40 was penned by Bill Lapworth. The Dufour 45E was designed by Umberto Felci.

In terms of size, the 1963 Cal 40 measures 12.19m (40.0ft) overall with a beam of 3.35m, compared to the Dufour 45E at 13.80m (45.3ft) with a 4.20m beam. The Dufour 45E is 1.61m longer than the 1963 Cal 40. The Dufour 45E displaces approximately 49% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1963 Cal 40 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.97 and 61.3 m² of sail area. The Dufour 45E, with an SA/D of 18.64 and 88.0 m² of canvas, offers good sail power for versatile performance. The Dufour 45E has the edge in terms of raw sailing performance.

For comfort and safety, the 1963 Cal 40 offers a moderate motion comfort level (comfort ratio: 21.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.70). The Dufour 45E has a comfort ratio of 15.3 and a capsize screening value of 0.77. The ballast ratios are 38.7% for the 1963 Cal 40 and 30.5% for the Dufour 45E, reflecting their respective approaches to stability.

Below deck, the 1963 Cal 40 provides 6 berths in 2 cabins with 114L of water capacity and 76L of fuel. The Dufour 45E offers 8 berths in 3 cabins with 380L water and 200L fuel capacity.

Verdict

For cruising: The 1963 Cal 40 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 Dufour 45E has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The Dufour 45E 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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