Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
15.04 ft
J ?
11.25 ft
P ?
32.30 ft
E ?
9.92 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 | 160.2 | 14.9 |
| 100% ForetriangleI × J ÷ 2 | 84.6 | 7.9 |
| 150% GenoaTypical light-air headsail | 126.9 | 11.8 |
| Storm Jib~50% of foretriangle, high-cut | 42.3 | 3.9 |
| Symmetric SpinnakerEstimated from I, J | 304.6 | 28.3 |
| Total Working Sail AreaMain + 100% foretriangle | 244.8 | 22.7 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Masthead Sloop · John Cherubini design
Performance Ratios
How the Hunter 27 carries its sail relative to its displacement.
SA/D Ratio
13.2
Heavy and modestly canvassed — a comfortable cruiser, not fast.
Mast Height (above DWL)
40.9 ft
Clears the 65 ft ICW fixed-bridge standard with room to spare.
Ballast Ratio
43%
Stiff enough to carry a 150% genoa comfortably into moderate breeze.
Typical Sail Inventory
What Hunter 27 owners usually carry and what's worth buying used vs. new.
Mainsail 160.2 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 126.9 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~93 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 42.3 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~305 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 Hunter 27 — Dacron, laminate, and cruising performance tiers.