Rigging Dimensions
The four foretriangle measurements sailmakers need to quote a new suit.
I ?
43.42 ft
J ?
14.00 ft
P ?
38.75 ft
E ?
13.00 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 | 251.9 | 23.4 |
| 100% ForetriangleI × J ÷ 2 | 303.9 | 28.2 |
| 150% GenoaTypical light-air headsail | 455.9 | 42.4 |
| Storm Jib~50% of foretriangle, high-cut | 152.0 | 14.1 |
| Symmetric SpinnakerEstimated from I, J | 1,094.2 | 101.7 |
| Total Working Sail AreaMain + 100% foretriangle | 555.8 | 51.6 |
Foretriangle Diagram
Drawn to scale from published I, J, P, E measurements — Cutter · George Hazen design
Performance Ratios
How the Dickerson 37 Ac carries its sail relative to its displacement.
SA/D Ratio
17.1
Moderate — comfortable coastal cruiser, not overcanvassed.
Mast Height (above DWL)
— ft
Air draft not published — measure yours before any bridge transit.
Ballast Ratio
38%
Typical cruising ballast — balanced stability underway.
Typical Sail Inventory
What Dickerson 37 Ac owners usually carry and what's worth buying used vs. new.
Mainsail 251.9 ft²
Dacron cross-cut with 2 reef points is standard. Full-batten is a common upgrade.
Replace new
150% Genoa 455.9 ft²
The workhorse headsail. Most boats have one on a furler by now.
Replace new
110% Working Jib ~334 ft²
Good secondary sail for breezy days — used market is strong.
Buy used
Storm Jib 152.0 ft²
Bright orange recommended. Rarely used, hard to justify new.
Buy used
Asymmetric Spinnaker ~1,094 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 Dickerson 37 Ac — Dacron, laminate, and cruising performance tiers.