1974 Tartan 27 vs 1984 Dehler 25 — Comparison

1974 Tartan 271974 Tartan 27
VS
1984 Dehler 25

Specifications Side by Side

Specification1974 Tartan 271984 Dehler 25
General
ManufacturerTartanDehler
Year1974–19801984–1992
TypeSloopSloop
CountryUSAGermany
DesignerSparkman & StephensE.G. van de Stadt
Dimensions
LOA8.23 m (27.0 ft)7.50 m (24.6 ft)
LWL6.40 m (21.0 ft)6.30 m (20.7 ft)
Beam2.69 m (8.8 ft)2.50 m (8.2 ft)
Draft1.22 m (4.0 ft)1.35 m (4.4 ft)
Weight
Displacement2,948 kg (6,499 lbs)1,800 kg (3,968 lbs)
Ballast1,361 kg (3,000 lbs)680 kg (1,499 lbs)
Sailing
Sail Area33.5 m² (361 ft²)22.5 m² (242 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine10 HP8 HP
Fuel Capacity38 L (10.0 gal)25 L (6.6 gal)
Water Capacity57 L (15.1 gal)40 L (10.6 gal)
Accommodation
Berths54
Cabins11

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1974 Tartan 27
16.56
1984 Dehler 25
15.46
Ballast Ratio (Higher = more stability)
1974 Tartan 27
46.17
1984 Dehler 25
37.78
Capsize Ratio (Lower = safer offshore)
1974 Tartan 27
0.75
1984 Dehler 25
0.82
Comfort Ratio (Higher = gentler motion)
1974 Tartan 27
25.11
1984 Dehler 25
18.41

Detailed Comparison

The 1974 Tartan 27 and 1984 Dehler 25 represent two takes on sloop-rigged sailing. The 1974 Tartan 27 is a 1970s design by Tartan from USA, while the 1984 Dehler 25 is a 1980s offering from Dehler from Germany. The 1974 Tartan 27 was penned by Sparkman & Stephens. The 1984 Dehler 25 was designed by E.G. van de Stadt.

In terms of size, the 1974 Tartan 27 measures 8.23m (27.0ft) overall with a beam of 2.69m, compared to the 1984 Dehler 25 at 7.50m (24.6ft) with a 2.50m beam. The 1974 Tartan 27 is 0.73m longer than the 1984 Dehler 25. The 1974 Tartan 27 displaces approximately 64% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1974 Tartan 27 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.56 and 33.5 m² of sail area. The 1984 Dehler 25, with an SA/D of 15.46 and 22.5 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1974 Tartan 27 has the edge in terms of raw sailing performance.

For comfort and safety, the 1974 Tartan 27 offers a moderate motion comfort level (comfort ratio: 25.1) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.75). The 1984 Dehler 25 has a comfort ratio of 18.4 and a capsize screening value of 0.82. The ballast ratios are 46.2% for the 1974 Tartan 27 and 37.8% for the 1984 Dehler 25, reflecting their respective approaches to stability.

Below deck, the 1974 Tartan 27 provides 5 berths in 1 cabin with 57L of water capacity and 38L of fuel. The 1984 Dehler 25 offers 4 berths in 1 cabin with 40L water and 25L fuel capacity.

Verdict

For cruising: The 1974 Tartan 27 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 1974 Tartan 27 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1974 Tartan 27 offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.

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Or view individual specs: 1974 Tartan 27 · 1984 Dehler 25