Made to measureIllustration. Yours is cut to this boat’s measurements.Yamaha 34EX Mainsail
Express +8%, economy 5.5% off. Shown as its own line in your cart.
Every Yamaha 34EX 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 7.6 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) | 12.30 | 40.4 |
| J (fore-triangle base) | 3.65 | 12.0 |
| P (mainsail luff) | 11.85 | 38.9 |
| E (mainsail foot) | 4.25 | 13.9 |
| Mainsail area | 29.5 m² | 317 ft² |
| Fore-triangle area | 22.4 m² | 242 ft² |
| Length overall (approx.) | 10.36 | 34 |
We confirm your measurements before anything is cut.
From A$2,808.30 in Dimension-Polyant Optimum Cruise with 3 leech battens and a full-length head batten, or A$3,003 with 4 full battens. C-Breeze, the long-life cloth, starts at A$3,741.10. Every mainsail is cut to the Yamaha 34EX rig (P 11.85 m, E 4.25 m) with two reefs.
We build 110% to 150% LP for the standard rig (I 12.30 m, J 3.65 m). Pick a smaller genoa for a windy home port and a larger one for light-air sailing. Furling genoas start at A$2,127.40.
A Size 4 (57 m²) asymmetric suits the Yamaha 34EX 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 (7.6 m² here) and a trysail at 17.5% of P × E (8.8 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.