Main features | Sealord 39 Sloop | Sealord 39 Ketch |
Model | Sealord 39 | Sealord 39 |
Version | Sloop | Ketch |
Hull type | Monohull | Monohull |
Category | Offshore cruising sailboat | Offshore cruising sailboat |
Sailboat builder | Westerly | Westerly |
Sailboat designer | ||
Country | United Kingdom | United Kingdom |
Construction | Hull and deck: GRP (glass reinforced polyester) | Hull and deck: GRP (glass reinforced polyester) |
Number of hulls built | 42 | 42 |
First built hull | 1983 | 1983 |
Last built hull | 1987 | 1987 |
Appendages | Keel : fin without bulb | Keel : fin without bulb |
Helm | Single helm wheel | Single helm wheel |
Rudder | Single spade rudder | Single spade rudder |
Unsinkable | No | No |
Trailerable | No | No |
Main dimensions | Sealord 39 Sloop | Sealord 39 Ketch |
Hull length | 38’ 6”11.73 m | 38’ 6”11.73 m |
Waterline length | 32’ 6”9.9 m | 32’ 6”9.9 m |
Beam (width) | 13’ 2”4.01 m | 13’ 2”4.01 m |
Draft | 5’ 6”1.68 m | 5’ 6”1.68 m |
Mast height from DWL | 50’ 4”15.32 m | 48’ 4”14.72 m |
Light displacement (MLC) | 18501 lb8392 kg | 18501 lb8392 kg |
Ballast weight | 8001 lb3629 kg | 8001 lb3629 kg |
Rig and sails | Sealord 39 Sloop | Sealord 39 Ketch |
Upwind sail area | 967 ft²89.83 m² | 974 ft²90.48 m² |
Downwind sail area | 1828 ft²169.82 m² | 1793 ft²166.56 m² |
Mainsail area | 352 ft²32.7 m² | 274 ft²25.45 m² |
Mizzen sail area | 108 ft²10.03 m² | |
Genoa area | 615 ft²57.13 m² | 592 ft²55 m² |
Solent area | 352 ft²32.7 m² | 325 ft²30.19 m² |
Jib area | 217 ft²20.16 m² | 217 ft²20.16 m² |
Stormjib area | 125 ft²11.6 m² | 125 ft²11.6 m² |
Symmetric spinnaker area | 1476 ft²137.12 m² | 1411 ft²131.08 m² |
Gennaker area | 1071 ft²99.5 m² | 1019 ft²94.67 m² |
Rigging type | Sloop Marconi masthead | Ketch Marconi masthead |
Mast configuration | Deck stepped mast | Deck stepped mast |
Rotating spars | No | No |
Number of levels of spreaders | 1 | 1 |
Spreaders angle | 0 ° | 0 ° |
Spars construction | Aluminum spars | Aluminum spars |
Standing rigging | 1x19 strand wire continuous | 1x19 strand wire continuous |
Performances | Sealord 39 Sloop | Sealord 39 Ketch |
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. | 234 ft²/T21.75 m²/T | 236 ft²/T21.91 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. | 443 ft²/T41.12 m²/T | 434 ft²/T40.33 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. | 245 | 245 |
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. | 43 % | 43 % |
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. | 7.64 knots | 7.64 knots |
Auxiliary engine | Sealord 39 Sloop | Sealord 39 Ketch |
Engine(s) | 1 inboard engine | 1 inboard engine |
Fuel type | Diesel | Diesel |
Fuel tank capacity | 53.4 gal202 liters | 53.4 gal202 liters |
Accommodations and layout | Sealord 39 Sloop | Sealord 39 Ketch |
Cockpit | Center cockpit | Center cockpit |
Cabin(s) | 2 | 2 |
Berth(s) (min./max.) | 6 / 8 | 6 / 8 |
Head(s) | 2 | 2 |
Freshwater tank capacity | 130.8 gal495 liters | 130.8 gal495 liters |