Sailboat specifications and datasheets

First 34.7 deep draft

The First 34.7, here in "deep draft" version, is a 32’10” monohull sailboat designed by Bruce Farr. She was built by Bénéteau (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 2005 and 2009 with 125 hulls completed.

The First 34.7 belongs to the First range. The First 34.7 has also been marketed as First 10R and Bénéteau 34.7 and is as well listed, on, in version Shoal draft.

Bénéteau First 34.7 Bénéteau First 34.7 sailplanBénéteau First 34.7 sailingBénéteau First 34.7 sailingBénéteau First 34.7 sailingBénéteau First 34.7 cockpitBénéteau First 34.7 accommodationsBénéteau First 34.7 accommodationsBénéteau First 34.7 accommodations
First 34.7's   Main Features
Model First 34.7
Version Deep draft
Type of hull Monohull
Category Cruiser-racer sailboat
Designer Bruce Farr
Range First
Construction Hull:
monolithic fiberglass / polyester
sandwich balsa / fiberglass / polyester
First built hull 2005
Last built hull 2009
Number of hulls built 125
Appendages Keel :
Fin with bulb
Helm 1 wheel
Rudder 1 spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) N/A
First 34.7's   Main dimensions
Length overall 34’
Hull length 32’ 10”
Waterline length 28’ 7”
Beam (width) 11’ 1”
Draft 6’ 7”
Mast height from DWL 51’ 10”
Light displacement 9965 lbs
Ballast weight 3682 lbs
Ballast type Lead
French customs tonnage 11.00 Tx
First 34.7's   Rig and sails
Upwind sail area 757 sq.ft
Mainsail area 380 sq.ft
Genoa area 377 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Standing rigging Dyform
Number of levels of spreaders 2
Spreaders angle 20 °
IiFore triangle height (from mast foot to fore stay attachment) 43’ 2”
JiFore triangle base (from mast foot to bottom of forestay) 12’
PiMainsail hoist measurement (from tack to head) 42’
EiMainsail foot measurement (from tack to clew) 14’ 8”
First 34.7's   Performances
HN (French rating) 26.5
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.
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.
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.
37 %
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.
7.17 knots
First 34.7's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 21 HP
Fuel type Diesel
Fuel tank capacity 19.8 gal
First 34.7's   Accommodation
Cabin(s) 1
Berth(s) 5
Head(s) 1
Fresh water tank capacity 26.4 gal
Holding tank capacity 21.1 gal
Fridge/ice-box capacity 18.5 gal
Maximum headroom 5’ 11”
Galley headroom 5’ 11”
Head headroom 5’ 8”
First 34.7's   Saloon
Maximum headroom 5’ 11”
Berth length 6’ 4”
Berth width 1’ 7”
First 34.7's   Aft cabin
Maximum headroom 5’ 11”
Berth length 6’ 5”
Berth width 5’ 5”

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