Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
104.98 ft
J ?
30.84 ft
P ?
99.41 ft
E ?
34.10 ft
Sail Area Breakdown
Calculated from rigging dimensions. Use these as your starting point when ordering a new suit.
| Sail | Area (ft²) | Area (m²) |
|---|---|---|
| MainsailP × E ÷ 2 | 1,694.9 | 157.5 |
| 100% ForetriangleI × J ÷ 2 | 1,618.8 | 150.4 |
| 150% GenoaTypical light-air headsail | 2,428.2 | 225.6 |
| Storm Jib~50% of foretriangle, high-cut | 809.4 | 75.2 |
| Symmetric SpinnakerEstimated from I, J | 5,827.6 | 541.4 |
| Total Working Sail AreaMain + 100% foretriangle | 3,313.7 | 307.9 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Masthead Sloop · German Frers design
Performance Ratios
How the Swan 80 2 S carries its sail relative to its displacement.
SA/D Ratio
28.9
Performance-oriented — carries a lot of sail for its weight.
Mast Height (above DWL)
— ft
Air draft not published — measure yours before any bridge transit.
Ballast Ratio
—
Ballast ratio not published.
Typical Sail Inventory
What Swan 80 2 S owners usually carry and what's worth buying used vs. new.
Mainsail 1,694.9 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 2,428.2 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~1,781 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 809.4 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~5,828 ft²
Popular downwind upgrade — easier than symmetric for shorthanded sailing.
Optional
Replacement Cost Estimator
Get a rough price range for a new mainsail and genoa for the Swan 80 2 S — Dacron, laminate, and cruising performance tiers.