1963 Cal 40 vs 2006 X-Yachts X-43 — Comparison

1963 Cal 401963 Cal 40
VS
2006 X-Yachts X-43

Specifications Side by Side

Specification1963 Cal 402006 X-Yachts X-43
General
ManufacturerCalX-Yachts
Year1963–19722006–2012
TypeSloopSloop
CountryUSADenmark
DesignerBill LapworthNiels Jeppesen
Dimensions
LOA12.19 m (40.0 ft)12.93 m (42.4 ft)
LWL9.14 m (30.0 ft)10.90 m (35.8 ft)
Beam3.35 m (11.0 ft)3.90 m (12.8 ft)
Draft1.83 m (6.0 ft)2.25 m (7.4 ft)
Weight
Displacement7,030 kg (15,498 lbs)9,500 kg (20,944 lbs)
Ballast2,722 kg (6,001 lbs)3,600 kg (7,937 lbs)
Sailing
Sail Area61.3 m² (660 ft²)83.0 m² (893 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine22 HP55 HP
Fuel Capacity76 L (20.1 gal)130 L (34.3 gal)
Water Capacity114 L (30.1 gal)250 L (66.0 gal)
Accommodation
Berths67
Cabins23

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1963 Cal 40
16.97
2006 X-Yachts X-43
18.80
Ballast Ratio (Higher = more stability)
1963 Cal 40
38.72
2006 X-Yachts X-43
37.89
Capsize Ratio (Lower = safer offshore)
1963 Cal 40
0.70
2006 X-Yachts X-43
0.74
Comfort Ratio (Higher = gentler motion)
1963 Cal 40
21.35
2006 X-Yachts X-43
17.98

Detailed Comparison

The 1963 Cal 40 and 2006 X-Yachts X-43 represent two takes on sloop-rigged sailing. The 1963 Cal 40 is a classic design by Cal from USA, while the 2006 X-Yachts X-43 is a 2000s offering from X-Yachts from Denmark. The 1963 Cal 40 was penned by Bill Lapworth. The 2006 X-Yachts X-43 was designed by Niels Jeppesen.

In terms of size, the 1963 Cal 40 measures 12.19m (40.0ft) overall with a beam of 3.35m, compared to the 2006 X-Yachts X-43 at 12.93m (42.4ft) with a 3.90m beam. The 2006 X-Yachts X-43 is 0.74m longer than the 1963 Cal 40. The 2006 X-Yachts X-43 displaces approximately 35% 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 2006 X-Yachts X-43, with an SA/D of 18.80 and 83.0 m² of canvas, offers good sail power for versatile performance. The 2006 X-Yachts X-43 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 2006 X-Yachts X-43 has a comfort ratio of 18.0 and a capsize screening value of 0.74. The ballast ratios are 38.7% for the 1963 Cal 40 and 37.9% for the 2006 X-Yachts X-43, 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 2006 X-Yachts X-43 offers 7 berths in 3 cabins with 250L water and 130L 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 2006 X-Yachts X-43 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 2006 X-Yachts X-43 offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.

Compare Different Boats

Looking for a different matchup? Browse All Boats

Or view individual specs: 1963 Cal 40 · 2006 X-Yachts X-43