Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
58.82 ft
J ?
17.83 ft
P ?
51.25 ft
E ?
15.50 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 | 397.2 | 36.9 |
| 100% ForetriangleI × J ÷ 2 | 524.4 | 48.7 |
| 150% GenoaTypical light-air headsail | 786.6 | 73.1 |
| Storm Jib~50% of foretriangle, high-cut | 262.2 | 24.4 |
| Symmetric SpinnakerEstimated from I, J | 1,887.8 | 175.4 |
| Total Working Sail AreaMain + 100% foretriangle | 921.6 | 85.6 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — B&R · Warren Luhrs design
Performance Ratios
How the Hunter 45 carries its sail relative to its displacement.
SA/D Ratio
18.6
Powerful cruiser/racer — quick in light air, reef early in a blow.
Mast Height (above DWL)
63.5 ft
Tight on the 65 ft ICW standard — check tide before transiting.
Ballast Ratio
47%
Race-oriented ballast ratio — stiff and powerful.
Typical Sail Inventory
What Hunter 45 owners usually carry and what's worth buying used vs. new.
Mainsail 397.2 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 786.6 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~577 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 262.2 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~1,888 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 45 — Dacron, laminate, and cruising performance tiers.