1979 O'Day 25 vs 1998 Dehler 29 — Comparison

1979 O'Day 25 1979 O'Day 25
VS
1998 Dehler 29 1998 Dehler 29

Specifications Side by Side

Specification 1979 O'Day 25 1998 Dehler 29
General
Manufacturer O'Day Dehler
Year 1979–1984 1998–2006
Type Sloop Sloop
Country USA Germany
Designer C. Raymond Hunt Judel/Vrolijk
Dimensions
LOA 7.62 m (25.0 ft) 8.82 m (28.9 ft)
LWL 6.25 m (20.5 ft) 7.60 m (24.9 ft)
Beam 2.74 m (9.0 ft) 2.95 m (9.7 ft)
Draft 1.07 m (3.5 ft) 1.55 m (5.1 ft)
Weight
Displacement 1,769 kg (3,900 lbs) 3,200 kg (7,055 lbs)
Ballast 726 kg (1,601 lbs) 1,200 kg (2,646 lbs)
Sailing
Sail Area 27.2 m² (293 ft²) 35.0 m² (377 ft²)
Hull Material Fiberglass Fiberglass
Keel Type Fin Fin
Engine & Tanks
Engine 7 HP 14 HP
Fuel Capacity 30 L (7.9 gal) 40 L (10.6 gal)
Water Capacity 45 L (11.9 gal) 80 L (21.1 gal)
Accommodation
Berths 5 5
Cabins 1 2

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1979 O'Day 25
18.90
1998 Dehler 29
16.38
Ballast Ratio (Higher = more stability)
1979 O'Day 25
41.04
1998 Dehler 29
37.50
Capsize Ratio (Lower = safer offshore)
1979 O'Day 25
0.91
1998 Dehler 29
0.80
Comfort Ratio (Higher = gentler motion)
1979 O'Day 25
16.00
1998 Dehler 29
18.34

Detailed Comparison

The 1979 O'Day 25 and 1998 Dehler 29 represent two takes on sloop-rigged sailing. The 1979 O'Day 25 is a 1970s design by O'Day from USA, while the 1998 Dehler 29 is a 1990s offering from Dehler from Germany. The 1979 O'Day 25 was penned by C. Raymond Hunt. The 1998 Dehler 29 was designed by Judel/Vrolijk.

In terms of size, the 1979 O'Day 25 measures 7.62m (25.0ft) overall with a beam of 2.74m, compared to the 1998 Dehler 29 at 8.82m (28.9ft) with a 2.95m beam. The 1998 Dehler 29 is 1.20m longer than the 1979 O'Day 25. The 1998 Dehler 29 displaces approximately 81% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1979 O'Day 25 has good sail power for versatile performance with an SA/D ratio of 18.90 and 27.2 m² of sail area. The 1998 Dehler 29, with an SA/D of 16.38 and 35.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1979 O'Day 25 has the edge in terms of raw sailing performance.

For comfort and safety, the 1979 O'Day 25 offers a firm, racing-oriented motion (comfort ratio: 16.0) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.91). The 1998 Dehler 29 has a comfort ratio of 18.3 and a capsize screening value of 0.80. The ballast ratios are 41.0% for the 1979 O'Day 25 and 37.5% for the 1998 Dehler 29, reflecting their respective approaches to stability.

Below deck, the 1979 O'Day 25 provides 5 berths in 1 cabin with 45L of water capacity and 30L of fuel. The 1998 Dehler 29 offers 5 berths in 2 cabins with 80L water and 40L fuel capacity.

Verdict

For cruising: The 1998 Dehler 29 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 1979 O'Day 25 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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