Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
34.50 ft
J ?
12.00 ft
P ?
27.75 ft
E ?
10.25 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 | 142.2 | 13.2 |
| 100% ForetriangleI × J ÷ 2 | 207.0 | 19.2 |
| 150% GenoaTypical light-air headsail | 310.5 | 28.8 |
| Storm Jib~50% of foretriangle, high-cut | 103.5 | 9.6 |
| Symmetric SpinnakerEstimated from I, J | 745.2 | 69.2 |
| Total Working Sail AreaMain + 100% foretriangle | 349.2 | 32.4 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Masthead Sloop · C. William Lapworth design
Performance Ratios
How the Cal T2 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
46%
Race-oriented ballast ratio — stiff and powerful.
Typical Sail Inventory
What Cal T2 owners usually carry and what's worth buying used vs. new.
Mainsail 142.2 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 310.5 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~228 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 103.5 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~745 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 Cal T2 — Dacron, laminate, and cruising performance tiers.