Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
29.00 ft
J ?
8.17 ft
P ?
35.00 ft
E ?
17.50 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 | 306.3 | 28.5 |
| 100% ForetriangleI × J ÷ 2 | 118.5 | 11.0 |
| 150% GenoaTypical light-air headsail | 177.7 | 16.5 |
| Storm Jib~50% of foretriangle, high-cut | 59.2 | 5.5 |
| Symmetric SpinnakerEstimated from I, J | 426.5 | 39.6 |
| Total Working Sail AreaMain + 100% foretriangle | 424.7 | 39.5 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Fractional Sloop · Endeavour/Cortland Steck design
Performance Ratios
How the Endeavourcat 30 carries its sail relative to its displacement.
SA/D Ratio
21.1
Powerful cruiser/racer — quick in light air, reef early in a blow.
Mast Height (above DWL)
45.0 ft
Clears the 65 ft ICW fixed-bridge standard with room to spare.
Ballast Ratio
—
Ballast ratio not published.
Typical Sail Inventory
What Endeavourcat 30 owners usually carry and what's worth buying used vs. new.
Mainsail 306.3 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 177.7 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~130 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 59.2 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~426 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 Endeavourcat 30 — Dacron, laminate, and cruising performance tiers.