Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
47.00 ft
J ?
15.00 ft
P ?
42.00 ft
E ?
15.00 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 | 315.0 | 29.3 |
| 100% ForetriangleI × J ÷ 2 | 352.5 | 32.7 |
| 150% GenoaTypical light-air headsail | 528.8 | 49.1 |
| Storm Jib~50% of foretriangle, high-cut | 176.3 | 16.4 |
| Symmetric SpinnakerEstimated from I, J | 1,269.0 | 117.9 |
| Total Working Sail AreaMain + 100% foretriangle | 667.5 | 62.0 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Cutter · Harwood Ives design
Performance Ratios
How the Independence 45 carries its sail relative to its displacement.
SA/D Ratio
10.9
Heavy and modestly canvassed — a comfortable cruiser, not fast.
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 Independence 45 owners usually carry and what's worth buying used vs. new.
Mainsail 315.0 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 528.8 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~388 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 176.3 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~1,269 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 Independence 45 — Dacron, laminate, and cruising performance tiers.