| Main features | Jouët 920 Deep draft |
Model | Jouët 920 |
Version | Deep draft |
Hull type | Monohull |
Category | Cruising sailboat |
Sailboat builder | Yachting France |
Sailboat designer | |
Sailboat range | |
Sailboat collection | |
Country | France |
Construction | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich balsa fiberglass polyester |
Number of hulls built | About 200 |
First built hull | 1979 |
Last built hull | 1984 |
Appendages | Keel : fin without bulb |
Helm | Single tiller |
Rudder | Single semi-spade rudder |
Unsinkable | No |
Trailerable | No |
Former French navigation category | 2 |
| Main dimensions | Jouët 920 Deep draft |
Hull length | 30’ 5”9.27 m |
Waterline length | 23’ 10”7.25 m |
Beam (width) | 10’ 2”3.12 m |
Waterline beam (width) | 8’ 7”2.62 m |
Draft | 5’ 10”1.76 m |
Mast height from DWL | 36’ 7”11.15 m |
Fore freeboard | 3’ 5”1.03 m |
Mid-ship freeboard | 3’ 2”0.97 m |
Light displacement (MLC) | 6658 lb3020 kg |
Maximum displacement (MLDC) | 8157 lb3700 kg |
Ballast weight | 2425 lb1100 kg |
Ballast type | Cast iron |
French customs tonnage | 9.00 Tx |
| Rig and sails | Jouët 920 Deep draft |
Upwind sail area | 539 ft²50.04 m² |
Downwind sail area | 916 ft²85.14 m² |
Mainsail area | 195 ft²18.14 m² |
Genoa area | 343 ft²31.9 m² |
Jib area | 195 ft²18.1 m² |
Symmetric spinnaker area | 721 ft²67 m² |
P iMainsail hoist measurement (from tack to head) | 30’ 8”9.35 m |
E iMainsail foot measurement (from tack to clew) | 10’ 6”3.2 m |
Rigging type | Sloop Marconi masthead |
Mast configuration | Deck stepped mast |
Rotating spars | No |
Number of levels of spreaders | 1 |
Spreaders angle | 0 ° |
Spars construction | Aluminum spars |
Standing rigging | 1x19 strand wire continuous |
| Performances | Jouët 920 Deep draft |
HN (French rating) iHN or "Handicap Nationale" is an empirical rating system used in France allowing various monohulls, of different sizes and designs, to race each other fairly. It is particularly suitable for cruiser and cruiser-racer. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats. | 15.0 |
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. | 258 ft²/T23.95 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. | 439 ft²/T40.75 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. | 224 |
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 % |
Wetted area | 199 ft²18.53 m² |
Maximum transverse section | 11 ft²1.02 m² |
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. | 6.54 knots |
| Auxiliary engine | Jouët 920 Deep draft |
Engine(s) | 1 inboard engine |
Engine(s) power (min./max.) | 8 HP / 13 HP |
Fuel type | Diesel |
Fuel tank capacity | 10.6 gal40 liters |
| Accommodations and layout | Jouët 920 Deep draft |
Cockpit | Closed aft cockpit |
Cabin(s) | 2 |
Berth(s) | 6 |
Head(s) | 1 |
Freshwater tank capacity | 37 gal140 liters |
Maximum headroom | 6’ 1”1.85 m |