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Sailboat specifications and datasheets

Dufour 350 Grand Large

The Dufour 350 Grand Large is a 32’8” monohull sailboat designed by Umberto Felci. She was built by Dufour (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 2014 and 2017.

The Dufour 350 Grand Large belongs to the Grand Large range.

Dufour 350 Grand Large Dufour 350 Grand Large sailplanDufour 350 Grand Large layoutDufour 350 Grand Large layoutDufour 350 Grand Large layoutDufour 350 Grand Large sailingDufour 350 Grand Large sailingDufour 350 Grand Large accommodationsDufour 350 Grand Large accommodationsDufour 350 Grand Large accommodationsDufour 350 Grand Large accommodationsDufour 350 Grand Large accommodationsDufour 350 Grand Large detail
Dufour 350 Grand Large's   Main Features
Model Dufour 350 Grand Large
Type of hull Monohull
Category Cruising sailboat
Shipyard
Designer Umberto Felci
Range Grand Large
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich foam / fiberglass / polyester (injection molding process)
First built hull 2014
Last built hull 2017
Appendages Keel :
L-shaped keel (with bulb)
Helm 2 wheels
Rudder 1 spade rudder
Cockpit Open aft cockpit with closing system
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) About
91 500
(2016)
Dufour 350 Grand Large's   Main dimensions
Length overall 33’ 8”
Hull length 32’ 8”
Waterline length 29’ 8”
Beam (width) 11’ 7”
Draft 6’ 2”
Light displacement 12509 lbs
Ballast weight 3417 lbs
Dufour 350 Grand Large's   Rig and sails
Upwind sail area 646 sq.ft
Mainsail area 371 sq.ft
Genoa area 274 sq.ft
Jib area 221 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 2
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 41’ 8”
JiFore triangle base (from mast foot to bottom of forestay) 12’ 4”
PiMainsail hoist measurement (from tack to head) 39’ 7”
EiMainsail foot measurement (from tack to clew) 14’ 10”
Dufour 350 Grand Large'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.
18.86
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.
217
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.
27 %
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.
7.30 knots
Dufour 350 Grand Large's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 19 HP
Fuel type Diesel
Fuel tank capacity 42.3 gal
Dufour 350 Grand Large's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 8
Head(s) 1
Fresh water tank capacity 58.1 gal
Dufour 350 Grand Large's   Fore cabin
Berth length 6’ 7”
Dufour 350 Grand Large's   Aft cabin
Berth length 6’ 7”
Berth width 4’ 11”

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