1994 J/105 vs 1978 Cape Dory 270 — Comparison

1994 J/105
VS
1978 Cape Dory 270

Specifications Side by Side

Specification1994 J/1051978 Cape Dory 270
General
ManufacturerJ/BoatsCape Dory
Year1994–20081978–1985
TypeSloopSloop
CountryUSAUSA
DesignerRod JohnstoneCarl Alberg
Dimensions
LOA10.52 m (34.5 ft)8.23 m (27.0 ft)
LWL8.97 m (29.4 ft)6.40 m (21.0 ft)
Beam3.28 m (10.8 ft)2.59 m (8.5 ft)
Draft1.98 m (6.5 ft)1.14 m (3.7 ft)
Weight
Displacement3,856 kg (8,501 lbs)2,722 kg (6,001 lbs)
Ballast1,678 kg (3,699 lbs)1,134 kg (2,500 lbs)
Sailing
Sail Area57.6 m² (620 ft²)28.0 m² (301 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFull
Engine & Tanks
Engine15 HP12 HP
Fuel Capacity38 L (10.0 gal)38 L (10.0 gal)
Water Capacity57 L (15.1 gal)68 L (18.0 gal)
Accommodation
Berths64
Cabins21

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1994 J/105
23.80
1978 Cape Dory 270
14.60
Ballast Ratio (Higher = more stability)
1994 J/105
43.52
1978 Cape Dory 270
41.66
Capsize Ratio (Lower = safer offshore)
1994 J/105
0.84
1978 Cape Dory 270
0.74
Comfort Ratio (Higher = gentler motion)
1994 J/105
13.68
1978 Cape Dory 270
24.39

Detailed Comparison

The 1994 J/105 and 1978 Cape Dory 270 represent two takes on sloop-rigged sailing. The 1994 J/105 is a 1990s design by J/Boats from USA, while the 1978 Cape Dory 270 is a 1970s offering from Cape Dory from USA. The 1994 J/105 was penned by Rod Johnstone. The 1978 Cape Dory 270 was designed by Carl Alberg.

In terms of size, the 1994 J/105 measures 10.52m (34.5ft) overall with a beam of 3.28m, compared to the 1978 Cape Dory 270 at 8.23m (27.0ft) with a 2.59m beam. The 1994 J/105 is 2.29m longer than the 1978 Cape Dory 270. The 1994 J/105 displaces approximately 42% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1994 J/105 has generous sail power for spirited sailing with an SA/D ratio of 23.80 and 57.6 m² of sail area. The 1978 Cape Dory 270, with an SA/D of 14.60 and 28.0 m² of canvas, offers modest sail power for its displacement. The 1994 J/105 has the edge in terms of raw sailing performance.

For comfort and safety, the 1994 J/105 offers a firm, racing-oriented motion (comfort ratio: 13.7) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.84). The 1978 Cape Dory 270 has a comfort ratio of 24.4 and a capsize screening value of 0.74. The ballast ratios are 43.5% for the 1994 J/105 and 41.7% for the 1978 Cape Dory 270, reflecting their respective approaches to stability.

Below deck, the 1994 J/105 provides 6 berths in 2 cabins with 57L of water capacity and 38L of fuel. The 1978 Cape Dory 270 offers 4 berths in 1 cabin with 68L water and 38L fuel capacity.

Verdict

For cruising: The 1978 Cape Dory 270 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 1994 J/105 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1994 J/105 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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