Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
31.33 ft
J ?
10.07 ft
P ?
30.51 ft
E ?
10.82 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 | 165.1 | 15.3 |
| 100% ForetriangleI × J ÷ 2 | 157.7 | 14.7 |
| 150% GenoaTypical light-air headsail | 236.6 | 22.0 |
| Storm Jib~50% of foretriangle, high-cut | 78.9 | 7.3 |
| Symmetric SpinnakerEstimated from I, J | 567.9 | 52.8 |
| Total Working Sail AreaMain + 100% foretriangle | 322.8 | 30.0 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Fractional Sloop · Group Finot design
Performance Ratios
How the First 265 Beneteau carries its sail relative to its displacement.
SA/D Ratio
18.2
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
30%
Light ballast — tends to be tender; reef earlier.
Typical Sail Inventory
What First 265 Beneteau owners usually carry and what's worth buying used vs. new.
Mainsail 165.1 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 236.6 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~174 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 78.9 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~568 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 First 265 Beneteau — Dacron, laminate, and cruising performance tiers.