1970 Irwin 34 vs Hanse 370 — Comparison

1970 Irwin 34
VS
Hanse 370

Specifications Side by Side

Specification1970 Irwin 34Hanse 370
General
ManufacturerIrwinHanse
Year1970–19782004–2008
TypeSloopSloop
CountryUSAGermany
DesignerTed Irwinjudel/vrolijk & co
Dimensions
LOA10.36 m (34.0 ft)11.40 m (37.4 ft)
LWL8.23 m (27.0 ft)10.10 m (33.1 ft)
Beam3.20 m (10.5 ft)3.63 m (11.9 ft)
Draft1.52 m (5.0 ft)1.90 m (6.2 ft)
Weight
Displacement5,443 kg (12,000 lbs)6,800 kg (14,991 lbs)
Ballast2,177 kg (4,799 lbs)2,100 kg (4,630 lbs)
Sailing
Sail Area47.9 m² (516 ft²)60.0 m² (646 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFullFin
Engine & Tanks
Engine18 HP29 HP
Fuel Capacity76 L (20.1 gal)130 L (34.3 gal)
Water Capacity114 L (30.1 gal)250 L (66.0 gal)
Accommodation
Berths66
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1970 Irwin 34
15.73
Hanse 370
16.98
Ballast Ratio (Higher = more stability)
1970 Irwin 34
40.00
Hanse 370
30.88
Capsize Ratio (Lower = safer offshore)
1970 Irwin 34
0.73
Hanse 370
0.77
Comfort Ratio (Higher = gentler motion)
1970 Irwin 34
22.58
Hanse 370
17.05

Detailed Comparison

The 1970 Irwin 34 and Hanse 370 represent two takes on sloop-rigged sailing. The 1970 Irwin 34 is a 1970s design by Irwin from USA, while the Hanse 370 is a 2000s offering from Hanse from Germany. The 1970 Irwin 34 was penned by Ted Irwin. The Hanse 370 was designed by judel/vrolijk & co.

In terms of size, the 1970 Irwin 34 measures 10.36m (34.0ft) overall with a beam of 3.20m, compared to the Hanse 370 at 11.40m (37.4ft) with a 3.63m beam. The Hanse 370 is 1.04m longer than the 1970 Irwin 34. The Hanse 370 displaces approximately 25% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1970 Irwin 34 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.73 and 47.9 m² of sail area. The Hanse 370, with an SA/D of 16.98 and 60.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The Hanse 370 has the edge in terms of raw sailing performance.

For comfort and safety, the 1970 Irwin 34 offers a moderate motion comfort level (comfort ratio: 22.6) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.73). The Hanse 370 has a comfort ratio of 17.1 and a capsize screening value of 0.77. The ballast ratios are 40.0% for the 1970 Irwin 34 and 30.9% for the Hanse 370, reflecting their respective approaches to stability.

Below deck, the 1970 Irwin 34 provides 6 berths in 2 cabins with 114L of water capacity and 76L of fuel. The Hanse 370 offers 6 berths in 2 cabins with 250L water and 130L fuel capacity.

Verdict

For cruising: The 1970 Irwin 34 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 Hanse 370 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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