2005 Hanse 312 vs 1984 O'Day 30 — Comparison

2005 Hanse 312
VS
1984 O'Day 30

Specifications Side by Side

Specification2005 Hanse 3121984 O'Day 30
General
ManufacturerHanseO'Day
Year2005–20081984–1989
TypeSloopSloop
CountryGermanyUSA
DesignerJudel/VrolijkC. Raymond Hunt
Dimensions
LOA9.55 m (31.3 ft)9.14 m (30.0 ft)
LWL8.50 m (27.9 ft)7.62 m (25.0 ft)
Beam3.25 m (10.7 ft)3.05 m (10.0 ft)
Draft1.75 m (5.7 ft)1.52 m (5.0 ft)
Weight
Displacement4,300 kg (9,480 lbs)3,629 kg (8,001 lbs)
Ballast1,400 kg (3,086 lbs)1,452 kg (3,201 lbs)
Sailing
Sail Area47.0 m² (506 ft²)36.0 m² (388 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine18 HP13 HP
Fuel Capacity55 L (14.5 gal)57 L (15.1 gal)
Water Capacity100 L (26.4 gal)76 L (20.1 gal)
Accommodation
Berths56
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
2005 Hanse 312
18.06
1984 O'Day 30
15.49
Ballast Ratio (Higher = more stability)
2005 Hanse 312
32.56
1984 O'Day 30
40.01
Capsize Ratio (Lower = safer offshore)
2005 Hanse 312
0.80
1984 O'Day 30
0.79
Comfort Ratio (Higher = gentler motion)
2005 Hanse 312
17.69
1984 O'Day 30
19.36

Detailed Comparison

The 2005 Hanse 312 and 1984 O'Day 30 represent two takes on sloop-rigged sailing. The 2005 Hanse 312 is a 2000s design by Hanse from Germany, while the 1984 O'Day 30 is a 1980s offering from O'Day from USA. The 2005 Hanse 312 was penned by Judel/Vrolijk. The 1984 O'Day 30 was designed by C. Raymond Hunt.

In terms of size, the 2005 Hanse 312 measures 9.55m (31.3ft) overall with a beam of 3.25m, compared to the 1984 O'Day 30 at 9.14m (30.0ft) with a 3.05m beam. The 2005 Hanse 312 is 0.41m longer than the 1984 O'Day 30. The 2005 Hanse 312 displaces approximately 18% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 2005 Hanse 312 has good sail power for versatile performance with an SA/D ratio of 18.06 and 47.0 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 2005 Hanse 312 has the edge in terms of raw sailing performance.

For comfort and safety, the 2005 Hanse 312 offers a firm, racing-oriented motion (comfort ratio: 17.7) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.80). The 1984 O'Day 30 has a comfort ratio of 19.4 and a capsize screening value of 0.79. The ballast ratios are 32.6% for the 2005 Hanse 312 and 40.0% for the 1984 O'Day 30, reflecting their respective approaches to stability.

Below deck, the 2005 Hanse 312 provides 5 berths in 2 cabins with 100L of water capacity and 55L of fuel. The 1984 O'Day 30 offers 6 berths in 2 cabins with 76L water and 57L fuel capacity.

Verdict

For cruising: The 1984 O'Day 30 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 2005 Hanse 312 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1984 O'Day 30 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: 2005 Hanse 312 · 1984 O'Day 30