Pearson 31-2 · Speed Polar Diagram

True Wind Speed — Toggle Overlays

Show VMG Optimum Angles (Beat & Run)

Vessel Specifications

LOA 30.67 ft

LWL 25.42 ft

Beam 10.67 ft

Draft 5.80 ft

Displacement 10,000 lb

Ballast 3,800 lb · 38%

Sail Area 492.8 ft²

SA/D 17.05

Rig Masthead

I / J 42.5 / 12.8 ft

P / E 36.8 / 12.0 ft

Hull Speed 6.76 kn

VMG Optimum Angles

TWS	Beat °	BSP	Run °	BSP

Beat and run angles are TWA from dead upwind/downwind. Sail closer than beat angle to gain height; fall off below run angle to gain speed.

Performance Ratios

D/L Ratio 271.8

Comfort 24.45

Capsize CSF 1.98

Sail# (S#) 1.98

D/L 271 = moderate-heavy cruiser. CSF under 2.0 = safe in typical offshore conditions. SA/D 17 = good power for a cruiser-racer.