Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
60.50 ft
J ?
19.00 ft
P ?
54.00 ft
E ?
14.50 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 | 391.5 | 36.4 |
| 100% ForetriangleI × J ÷ 2 | 574.8 | 53.4 |
| 150% GenoaTypical light-air headsail | 862.1 | 80.1 |
| Storm Jib~50% of foretriangle, high-cut | 287.4 | 26.7 |
| Symmetric SpinnakerEstimated from I, J | 2,069.1 | 192.2 |
| Total Working Sail AreaMain + 100% foretriangle | 966.3 | 89.8 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Masthead Sloop · Ron Holland design
Performance Ratios
How the Swan 441 R carries its sail relative to its displacement.
SA/D Ratio
18.4
Powerful cruiser/racer — quick in light air, reef early in a blow.
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 441 R owners usually carry and what's worth buying used vs. new.
Mainsail 391.5 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 862.1 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~632 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 287.4 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~2,069 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 441 R — Dacron, laminate, and cruising performance tiers.