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Sailboat specifications and datasheets

First 42s7 lead keel

The First 42s7, here in "lead keel" version, is a 41’8” offshore monohull sailboat designed by Bruce Farr. She was built by Bénéteau (France) and made of monolithic fiberglass / polyester. The production started in 1994 .

The First 42s7 belongs to the First range. The First 42s7 is as well listed, on Boat-Specs.com, in version Shoal draft.

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First 42s7's   Main Features
Model First 42s7
Version Lead keel
Type of hull Monohull
Shipyard
Designer Bruce Farr
Range First
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich balsa / fiberglass / polyester
First built hull 1994
Appendages Keel :
L-shaped keel (with bulb)
Helm 1 wheel
Rudder 1 spade rudder
Unsinkable No
Trailerable No
French navigation category 1
Standard public price ex. VAT (indicative only) N/A
First 42s7's   Main dimensions
Length overall 42’ 6”
Hull length 41’ 8”
Waterline length 35’ 10”
Beam (width) 13’ 6”
Draft 7’ 6”
Light displacement 18739 lbs
Ballast weight 6173 lbs
Ballast type Lead
First 42s7's   Rig and sails
Upwind sail area 1033 sq.ft
Downwind sail area 1705 sq.ft
Mainsail area 467 sq.ft
Genoa area 566 sq.ft
Symetric spinnaker area 1238 sq.ft
Rigging type Sloop Marconi 7/8
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire
Number of levels of spreaders 2
Spreaders angle 14 °
First 42s7's   Performances
Upwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
23.04
Downwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
38.04
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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.
186
Ballast ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
33 %
Hull speediAs 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.
8.01 knots
First 42s7's   Auxiliary engine
Engine type Inboard engine
Engine (min/max) 48 HP / 72 HP
Fuel type Diesel
Fuel tank capacity 39.6 gal
First 42s7's   Accommodation
Cabin(s) (min/max) 2 / 4
Berth(s) (min/max) 4 / 8
Head(s) 2
Fresh water tank capacity 171.7 gal
Water heater capacity 11.1 gal
Fridge/ice-box capacity 44.9 gal
Maximum headroom 6’ 5”
First 42s7's   Fore cabin
Berth length 6’ 5”
Berth width 4’ 10”
First 42s7's   Aft cabin
Berth length 6’ 7”
Berth width (head/feet) 4’ 10”
4’

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