1968 Alberg 35 vs 1984 O'Day 30 — Comparison

1968 Alberg 35 1968 Alberg 35
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1984 O'Day 30 1984 O'Day 30

Specifications Side by Side

Specification 1968 Alberg 35 1984 O'Day 30
General
Manufacturer Various O'Day
Year 1968–1978 1984–1989
Type Sloop Sloop
Country USA USA
Designer Carl Alberg C. Raymond Hunt
Dimensions
LOA 10.67 m (35.0 ft) 9.14 m (30.0 ft)
LWL 7.62 m (25.0 ft) 7.62 m (25.0 ft)
Beam 2.90 m (9.5 ft) 3.05 m (10.0 ft)
Draft 1.37 m (4.5 ft) 1.52 m (5.0 ft)
Weight
Displacement 5,443 kg (12,000 lbs) 3,629 kg (8,001 lbs)
Ballast 2,268 kg (5,000 lbs) 1,452 kg (3,201 lbs)
Sailing
Sail Area 43.0 m² (463 ft²) 36.0 m² (388 ft²)
Hull Material Fiberglass Fiberglass
Keel Type Full Fin
Engine & Tanks
Engine 15 HP 13 HP
Fuel Capacity 57 L (15.1 gal) 57 L (15.1 gal)
Water Capacity 76 L (20.1 gal) 76 L (20.1 gal)
Accommodation
Berths 6 6
Cabins 2 2

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1968 Alberg 35
14.12
1984 O'Day 30
15.49
Ballast Ratio (Higher = more stability)
1968 Alberg 35
41.67
1984 O'Day 30
40.01
Capsize Ratio (Lower = safer offshore)
1968 Alberg 35
0.66
1984 O'Day 30
0.79
Comfort Ratio (Higher = gentler motion)
1968 Alberg 35
27.81
1984 O'Day 30
19.36

Detailed Comparison

The 1968 Alberg 35 and 1984 O'Day 30 represent two takes on sloop-rigged sailing. The 1968 Alberg 35 is a classic design by Various from USA, while the 1984 O'Day 30 is a 1980s offering from O'Day from USA. The 1968 Alberg 35 was penned by Carl Alberg. The 1984 O'Day 30 was designed by C. Raymond Hunt.

In terms of size, the 1968 Alberg 35 measures 10.67m (35.0ft) overall with a beam of 2.90m, compared to the 1984 O'Day 30 at 9.14m (30.0ft) with a 3.05m beam. The 1968 Alberg 35 is 1.53m longer than the 1984 O'Day 30. The 1968 Alberg 35 displaces approximately 50% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1968 Alberg 35 has modest sail power for its displacement with an SA/D ratio of 14.12 and 43.0 m² of sail area. The 1984 O'Day 30, with an SA/D of 15.49 and 36.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1984 O'Day 30 has the edge in terms of raw sailing performance.

For comfort and safety, the 1968 Alberg 35 offers a moderate motion comfort level (comfort ratio: 27.8) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.66). The 1984 O'Day 30 has a comfort ratio of 19.4 and a capsize screening value of 0.79. The ballast ratios are 41.7% for the 1968 Alberg 35 and 40.0% for the 1984 O'Day 30, reflecting their respective approaches to stability.

Below deck, the 1968 Alberg 35 provides 6 berths in 2 cabins with 76L of water capacity and 57L of fuel. The 1984 O'Day 30 offers 6 berths in 2 cabins with 76L water and 57L fuel capacity.

Verdict

For cruising: The 1968 Alberg 35 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 1984 O'Day 30 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: Both boats provide similar accommodation, making either a viable choice for living aboard. Consider water and fuel capacity for extended stays away from marinas.

Compare Different Boats

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