Made to measureIllustration. Yours is cut to this boat’s measurements.Sigma 33 (masthead rig, shoal draft) Mainsail
Express +8%, economy 5.5% off. Shown as its own line in your cart.
Every Sigma 33 (masthead rig, shoal draft) price in your inbox: mainsail and genoa in each cloth, the spinnaker, sock, storm sails and canvas, plus the rig dimensions.
Made to measureIllustration. Yours is cut to this boat’s measurements.Express +8%, economy 5.5% off. Shown as its own line in your cart.
Made to measureIllustration. Yours is cut to this boat’s measurements.Express +8%, economy 5.5% off. Shown as its own line in your cart.
The sock goes in your cart as its own line, linked to this spinnaker.
OSR max 9.0 m²Luff tape relies on a foil, so it does not meet the OSR luff-attachment rule. Choose hanks or wrap luff for offshore racing.
Tell us your track size after you order.
| Measurement | Metres | Feet |
|---|---|---|
| I (fore-triangle height) | 13.41 | 44.0 |
| J (fore-triangle base) | 3.60 | 11.8 |
| P (mainsail luff) | 11.74 | 38.5 |
| E (mainsail foot) | 3.81 | 12.5 |
| Mainsail area | 26.2 m² | 282 ft² |
| Fore-triangle area | 24.1 m² | 260 ft² |
| Length overall (approx.) | 10.06 | 33 |
We confirm your measurements before anything is cut.
From A$2,531.10 in Dimension-Polyant Optimum Cruise with 3 leech battens and a full-length head batten, or A$2,707.10 with 4 full battens. C-Breeze, the long-life cloth, starts at A$3,359.40. Every mainsail is cut to the Sigma 33 (masthead rig, shoal draft) rig (P 11.74 m, E 3.81 m) with two reefs.
We build 110% to 150% LP for the standard rig (I 13.41 m, J 3.60 m). Pick a smaller genoa for a windy home port and a larger one for light-air sailing. Furling genoas start at A$2,285.80.
A Size 4 (57 m²) asymmetric suits the Sigma 33 (masthead rig, shoal draft) fore-triangle. It starts at A$1,849.10, or A$2,549.80 with a dousing sock.
The Offshore Special Regulations cap a storm jib at 5% of I squared (9.0 m² here) and a trysail at 17.5% of P × E (7.8 m²). That makes our Large (7.5 m²) storm jib and Medium (7.8 m²) trysail the right sizes.
Measure I, J, P and E and compare them with the rig table. We confirm every measurement with you before the sail is cut.
For a race programme, a Sydney to Hobart or a bluewater expedition, our sister loft Kraken Sails designs laminates, membrane sails and storm wardrobes for the hard end of sailing.