Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
37.58 ft
J ?
13.58 ft
P ?
32.67 ft
E ?
15.25 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 | 249.1 | 23.1 |
| 100% ForetriangleI × J ÷ 2 | 255.2 | 23.7 |
| 150% GenoaTypical light-air headsail | 382.8 | 35.6 |
| Storm Jib~50% of foretriangle, high-cut | 127.6 | 11.9 |
| Symmetric SpinnakerEstimated from I, J | 918.6 | 85.3 |
| Total Working Sail AreaMain + 100% foretriangle | 504.3 | 46.8 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Masthead Sloop · C&C design
Performance Ratios
How the Invader 36 Cc carries its sail relative to its displacement.
SA/D Ratio
17.7
Moderate — comfortable coastal cruiser, not overcanvassed.
Mast Height (above DWL)
— ft
Air draft not published — measure yours before any bridge transit.
Ballast Ratio
36%
Typical cruising ballast — balanced stability underway.
Typical Sail Inventory
What Invader 36 Cc owners usually carry and what's worth buying used vs. new.
Mainsail 249.1 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 382.8 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~281 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 127.6 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~919 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 Invader 36 Cc — Dacron, laminate, and cruising performance tiers.