A made-to-measure furling genoa for the Black Watch 37, priced up front in five sizes from 110% to 150%. Pick the size, sailcloth and build time, add it to your cart, and we confirm your measurements before anything is cut.
Size
| Fore-triangle height (I) | 13.50 m |
|---|---|
| Fore-triangle base (J) | 4.27 m |
| Boat length | about 37 ft |
| Genoa size (LP) | Sail area | Price in Dimension-Polyant Optimum Cruise 348 OC 8.4 oz |
|---|---|---|
| 110% | about 31.7 m² | from A$2,918 / US$1,804 |
| 120% | about 34.6 m² | from A$3,185 / US$1,969 |
| 130% | about 37.5 m² | from A$3,450 / US$2,132 |
| 140% | about 40.3 m² | from A$3,715 / US$2,296 |
| 150% | about 43.2 m² | from A$3,980 / US$2,460 |
LP is the genoa’s overlap as a percentage of J. A 110% genoa is easier to tack and suits windy places; a 140 to 150% genoa gives more power in light air. Most cruising boats carry about 130%.
Sizes use the published rig dimensions for the Black Watch 37. After you order we send you a short measurement check. If your boat’s numbers change the price, we tell you before design starts and you can cancel for a full refund.
Choose your sailcloth
Both cloths are woven polyester (Dacron) from Dimension-Polyant, the German sailcloth maker. We name the exact cloth style and weight so you know what you are buying. A cheap sail usually starts with a cheap, unnamed cloth that loses its shape; we would rather save money by running a streamlined loft.
- Dimension-Polyant Optimum Cruise 348 OC 8.4 oz: Dimension-Polyant’s cruising Dacron and our best value. A dependable all-round cloth for coastal and weekend cruising.
- Dimension-Polyant C-Breeze 351CB 8 oz: a tighter weave of higher-tenacity fibres that resists stretch under load and keeps its shape for longer. A better pick for a genoa that stays on the furler year-round.
What’s included
- Cloth weight matched to your boat’s size
- Sunbrella acrylic UV cover on the leech and foot in your choice of 7 colours, sewn with V138 polyester thread
- Foam luff pad, so the sail holds a better shape when partly furled
- Stacked reinforcement patches at head, tack and clew
- Luff tape to suit your furler (size confirmed at measurement)
- Sail bag
- Design to your measurements
- 12-month warranty
Not included
- Furler, sheets or hardware
- Sail numbers and insignia
- A hanked-on headsail (contact us)
- Shipping (added at checkout)
Build time
- Standard: built in about 4 weeks, then shipped express.
- Express: built in about 2 weeks (+8%).
- Economy: built in about 8 weeks with slower freight (5.5% off).
Shipping is added at checkout: A$75 within Australia, US$75 to the United States with import duty prepaid, and US$75 to US$375 elsewhere. See our shipping policy.
Questions
How much is a new genoa for a Black Watch 37?
From A$2,918 including GST in Australia (US$1,804 in the US) for a 110% furling genoa in Dimension-Polyant Optimum Cruise 348 OC 8.4 oz, up to A$3,980 for a 150%. Dimension-Polyant C-Breeze costs more.
What size genoa does a Black Watch 37 need?
Most owners choose about 130%, which is about 37.5 m² on this boat (from an I of 13.50 m and a J of 4.27 m). Choose 110 to 120% for a windy sailing area or easier tacking, or 140 to 150% for light air. We check your own measurements before we build.
How long does it take?
About 4 weeks to build plus express shipping. Express (about 2 weeks) and economy (about 8 weeks) builds are also available.
