2005 Hanse 312 vs 1979 O'Day 28 — Comparison

2005 Hanse 312
VS
1979 O'Day 281979 O'Day 28

Specifications Side by Side

Specification2005 Hanse 3121979 O'Day 28
General
ManufacturerHanseO'Day
Year2005–20081979–1985
TypeSloopSloop
CountryGermanyUSA
DesignerJudel/VrolijkC. Raymond Hunt
Dimensions
LOA9.55 m (31.3 ft)8.53 m (28.0 ft)
LWL8.50 m (27.9 ft)7.01 m (23.0 ft)
Beam3.25 m (10.7 ft)2.84 m (9.3 ft)
Draft1.75 m (5.7 ft)1.37 m (4.5 ft)
Weight
Displacement4,300 kg (9,480 lbs)2,722 kg (6,001 lbs)
Ballast1,400 kg (3,086 lbs)1,089 kg (2,401 lbs)
Sailing
Sail Area47.0 m² (506 ft²)31.0 m² (334 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine18 HP10 HP
Fuel Capacity55 L (14.5 gal)38 L (10.0 gal)
Water Capacity100 L (26.4 gal)57 L (15.1 gal)
Accommodation
Berths55
Cabins21

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
2005 Hanse 312
18.06
1979 O'Day 28
16.16
Ballast Ratio (Higher = more stability)
2005 Hanse 312
32.56
1979 O'Day 28
40.01
Capsize Ratio (Lower = safer offshore)
2005 Hanse 312
0.80
1979 O'Day 28
0.81
Comfort Ratio (Higher = gentler motion)
2005 Hanse 312
17.69
1979 O'Day 28
18.69

Detailed Comparison

The 2005 Hanse 312 and 1979 O'Day 28 represent two takes on sloop-rigged sailing. The 2005 Hanse 312 is a 2000s design by Hanse from Germany, while the 1979 O'Day 28 is a 1970s offering from O'Day from USA. The 2005 Hanse 312 was penned by Judel/Vrolijk. The 1979 O'Day 28 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 1979 O'Day 28 at 8.53m (28.0ft) with a 2.84m beam. The 2005 Hanse 312 is 1.02m longer than the 1979 O'Day 28. The 2005 Hanse 312 displaces approximately 58% 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 1979 O'Day 28, with an SA/D of 16.16 and 31.0 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 1979 O'Day 28 has a comfort ratio of 18.7 and a capsize screening value of 0.81. The ballast ratios are 32.6% for the 2005 Hanse 312 and 40.0% for the 1979 O'Day 28, 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 1979 O'Day 28 offers 5 berths in 1 cabin with 57L water and 38L fuel capacity.

Verdict

For cruising: The 1979 O'Day 28 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: Both boats provide similar accommodation, making either a viable choice for living aboard. Consider water and fuel capacity for extended stays away from marinas.

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