Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
16.92 ft
J ?
5.58 ft
P ?
18.00 ft
E ?
7.16 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 | 64.4 | 6.0 |
| 100% ForetriangleI × J ÷ 2 | 47.2 | 4.4 |
| 150% GenoaTypical light-air headsail | 70.8 | 6.6 |
| Storm Jib~50% of foretriangle, high-cut | 23.6 | 2.2 |
| Symmetric SpinnakerEstimated from I, J | 169.9 | 15.8 |
| Total Working Sail AreaMain + 100% foretriangle | 111.6 | 10.4 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Fractional Sloop · Steven Dileo design
Performance Ratios
How the Galilee 15 carries its sail relative to its displacement.
SA/D Ratio
27.1
Performance-oriented — carries a lot of sail for its weight.
Mast Height (above DWL)
21.8 ft
Clears the 65 ft ICW fixed-bridge standard with room to spare.
Ballast Ratio
23%
Light ballast — tends to be tender; reef earlier.
Typical Sail Inventory
What Galilee 15 owners usually carry and what's worth buying used vs. new.
Mainsail 64.4 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 70.8 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~52 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 23.6 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~170 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 Galilee 15 — Dacron, laminate, and cruising performance tiers.