Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
61.09 ft
J ?
17.81 ft
P ?
59.05 ft
E ?
20.73 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 | 612.1 | 56.9 |
| 100% ForetriangleI × J ÷ 2 | 544.0 | 50.5 |
| 150% GenoaTypical light-air headsail | 816.0 | 75.8 |
| Storm Jib~50% of foretriangle, high-cut | 272.0 | 25.3 |
| Symmetric SpinnakerEstimated from I, J | 1,958.4 | 181.9 |
| Total Working Sail AreaMain + 100% foretriangle | 1,156.1 | 107.4 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Fractional Sloop · Botin & Carkeek design
Performance Ratios
How the Premier 45 carries its sail relative to its displacement.
SA/D Ratio
27.3
Performance-oriented — carries a lot of sail for its weight.
Mast Height (above DWL)
— ft
Air draft not published — measure yours before any bridge transit.
Ballast Ratio
42%
Stiff enough to carry a 150% genoa comfortably into moderate breeze.
Typical Sail Inventory
What Premier 45 owners usually carry and what's worth buying used vs. new.
Mainsail 612.1 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 816.0 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~598 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 272.0 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~1,958 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 Premier 45 — Dacron, laminate, and cruising performance tiers.