Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
12.75 ft
J ?
4.50 ft
P ?
16.25 ft
E ?
8.00 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 | 65.0 | 6.0 |
| 100% ForetriangleI × J ÷ 2 | 28.7 | 2.7 |
| 150% GenoaTypical light-air headsail | 43.0 | 4.0 |
| Storm Jib~50% of foretriangle, high-cut | 14.3 | 1.3 |
| Symmetric SpinnakerEstimated from I, J | 103.3 | 9.6 |
| Total Working Sail AreaMain + 100% foretriangle | 93.7 | 8.7 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Fractional Sloop · Clark Mills design
Performance Ratios
How the Com Pac 16 carries its sail relative to its displacement.
SA/D Ratio
17.3
Moderate — comfortable coastal cruiser, not overcanvassed.
Mast Height (above DWL)
21.0 ft
Clears the 65 ft ICW fixed-bridge standard with room to spare.
Ballast Ratio
41%
Stiff enough to carry a 150% genoa comfortably into moderate breeze.
Typical Sail Inventory
What Com Pac 16 owners usually carry and what's worth buying used vs. new.
Mainsail 65.0 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 43.0 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~32 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 14.3 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~103 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 Com Pac 16 — Dacron, laminate, and cruising performance tiers.