Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
58.25 ft
J ?
17.17 ft
P ?
51.00 ft
E ?
16.83 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 | 429.2 | 39.9 |
| 100% ForetriangleI × J ÷ 2 | 500.1 | 46.5 |
| 150% GenoaTypical light-air headsail | 750.1 | 69.7 |
| Storm Jib~50% of foretriangle, high-cut | 250.0 | 23.2 |
| Symmetric SpinnakerEstimated from I, J | 1,800.3 | 167.3 |
| Total Working Sail AreaMain + 100% foretriangle | 929.2 | 86.3 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Masthead Sloop · Chuck Paine & Associates design
Performance Ratios
How the Morris 46 carries its sail relative to its displacement.
SA/D Ratio
17.2
Moderate — comfortable coastal cruiser, not overcanvassed.
Mast Height (above DWL)
— ft
Air draft not published — measure yours before any bridge transit.
Ballast Ratio
37%
Typical cruising ballast — balanced stability underway.
Typical Sail Inventory
What Morris 46 owners usually carry and what's worth buying used vs. new.
Mainsail 429.2 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 750.1 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~550 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 250.0 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~1,800 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 Morris 46 — Dacron, laminate, and cruising performance tiers.