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 5.5 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.
Every Yokoyama 31 price on one printable page: mainsail and genoa in each cloth, the spinnaker, sock, storm sails and canvas, plus the rig dimensions.
| Measurement | Metres | Feet |
|---|---|---|
| I (fore-triangle height) | 10.53 | 34.5 |
| J (fore-triangle base) | 3.09 | 10.1 |
| P (mainsail luff) | 11.75 | 38.5 |
| E (mainsail foot) | 4.09 | 13.4 |
| Mainsail area | 28.1 m² | 303 ft² |
| Fore-triangle area | 16.3 m² | 175 ft² |
| Length overall (approx.) | 9.45 | 31 |
We confirm your measurements before anything is cut.
From A$2,648.80 in Dimension-Polyant Optimum Cruise with 3 leech battens and a full-length head batten, or A$2,835.80 with 4 full battens. C-Breeze, the long-life cloth, starts at A$3,538.70. Every mainsail is cut to the Yokoyama 31 rig (P 11.75 m, E 4.09 m) with two reefs.
We build 110% to 150% LP for the standard rig (I 10.53 m, J 3.09 m). Pick a smaller genoa for a windy home port and a larger one for light-air sailing. Furling genoas start at A$1,540.
A Size 2 (43 m²) asymmetric suits the Yokoyama 31 fore-triangle. It starts at A$1,406.90, or A$2,036.10 with a dousing sock.
The Offshore Special Regulations cap a storm jib at 5% of I squared (5.5 m² here) and a trysail at 17.5% of P × E (8.4 m²). That makes our Small (4.5 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.
