Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
40.00 ft
J ?
13.00 ft
P ?
34.00 ft
E ?
12.25 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 | 208.3 | 19.3 |
| 100% ForetriangleI × J ÷ 2 | 260.0 | 24.2 |
| 150% GenoaTypical light-air headsail | 390.0 | 36.2 |
| Storm Jib~50% of foretriangle, high-cut | 130.0 | 12.1 |
| Symmetric SpinnakerEstimated from I, J | 936.0 | 87.0 |
| Total Working Sail AreaMain + 100% foretriangle | 468.3 | 43.5 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Masthead Sloop · Arthur Edmonds design
Performance Ratios
How the S2 92 A Sd carries its sail relative to its displacement.
SA/D Ratio
16.4
Moderate — comfortable coastal cruiser, not overcanvassed.
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 S2 92 A Sd owners usually carry and what's worth buying used vs. new.
Mainsail 208.3 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 390.0 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~286 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 130.0 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~936 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 S2 92 A Sd — Dacron, laminate, and cruising performance tiers.