| Main features | J/109 Standard | J/109 Shoal draft |
Model | J/109 | J/109 |
Version | Standard | Shoal draft |
Hull type | Monohull | Monohull |
Category | Cruiser-racer sailboat | Cruiser-racer sailboat |
Sailboat builder | J/Boats | J/Boats |
Sailboat designer | ||
Country | United States | United States |
Construction | GRP (glass reinforced polyester): Sandwich balsa fiberglass vinylester (vacuum infusion) | GRP (glass reinforced polyester): Sandwich balsa fiberglass vinylester (vacuum infusion) |
Number of hulls built | 360 | 360 |
First built hull | 2001 | 2001 |
Last built hull | Discontinued | Discontinued |
Appendages | Keel : L-shaped keel (with bulb) | Keel : L-shaped keel (with bulb) |
Helm | Single helm wheel | Single helm wheel |
Rudder | Single spade rudder | Single spade rudder |
Unsinkable | No | No |
Trailerable | No | No |
EC design category iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)A: Wind < force 9, Waves < 10m B: Wind < force 8, Waves < 8m C: Wind < force 6, Waves < 4m D: Wind < force 4, Waves < 0,5m | A | A |
| Main dimensions | J/109 Standard | J/109 Shoal draft |
Hull length | 35’ 4”10.75 m | 35’ 4”10.75 m |
Waterline length | 30’ 6”9.3 m | 30’ 6”9.3 m |
Beam (width) | 11’ 6”3.51 m | 11’ 6”3.51 m |
Draft | 6’ 11”2.1 m | 5’ 7”1.72 m |
Light displacement (MLC) | 10913 lb4950 kg | 10913 lb4950 kg |
Ballast weight | 3880 lb1760 kg | 3880 lb1760 kg |
Ballast type | Lead | Lead |
French customs tonnage | 11.04 Tx | 11.04 Tx |
| Rig and sails | J/109 Standard | J/109 Shoal draft |
Upwind sail area | 657 ft²61 m² | 657 ft²61 m² |
Downwind sail area | 1485 ft²138 m² | 1485 ft²138 m² |
Mainsail area | 301 ft²28 m² | 301 ft²28 m² |
Genoa area | 355 ft²33 m² | 355 ft²33 m² |
Asymmetric spinnaker area | 1184 ft²110 m² | 1184 ft²110 m² |
I iFore triangle height (from mast foot to fore stay top attachment) | 46’ 6”14.17 m | 46’ 6”14.17 m |
J iFore triangle base (from mast foot to bottom of forestay) | 13’ 4”4.05 m | 13’ 4”4.05 m |
P iMainsail hoist measurement (from tack to head) | 43’ 2”13.18 m | 43’ 2”13.18 m |
E iMainsail foot measurement (from tack to clew) | 15’ 6”4.72 m | 15’ 6”4.72 m |
Rigging type | Sloop Marconi fractional | Sloop Marconi fractional |
Mast configuration | Keel stepped mast | Keel stepped mast |
Rotating spars | No | No |
Number of levels of spreaders | 2 | 2 |
Spreaders angle | Swept-back | Swept-back |
Spars construction | Aluminum spars | Aluminum spars |
Standing rigging | Single-strand (ROD) | Single-strand (ROD) |
| Performances | J/109 Standard | J/109 Shoal draft |
Upwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat. | 226 ft²/T21 m²/T | 226 ft²/T21 m²/T |
Downwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. | 511 ft²/T47.51 m²/T | 511 ft²/T47.51 m²/T |
Displacement-length ratio (DLR) iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).The DLR can be used to compare the relative mass of different sailboats no matter what their length: a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat. | 174 | 174 |
Ballast ratio iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.The higher the ballast ratio is, the greater is the stability. | 36 % | 36 % |
Critical hull speed iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34. | 7.40 knots | 7.40 knots |
| Auxiliary engine | J/109 Standard | J/109 Shoal draft |
Engine(s) | 1 inboard engine | 1 inboard engine |
Engine(s) power (min./max.) | 18 HP / 28 HP | 18 HP / 28 HP |
Fuel type | Diesel | Diesel |
Fuel tank capacity | 22.5 gal85 liters | 22.5 gal85 liters |
| Accommodations and layout | J/109 Standard | J/109 Shoal draft |
Cockpit | Open aft cockpit | Open aft cockpit |
Cabin(s) | 2 | 2 |
Berth(s) (min./max.) | 4 / 6 | 4 / 6 |
Head(s) | 1 | 1 |
Freshwater tank capacity | 25.4 gal96 liters | 25.4 gal96 liters |
Fridge/ice-box capacity | 23.8 gal90 liters | 23.8 gal90 liters |
Maximum headroom | 6’ 2”1.88 m | 6’ 2”1.88 m |