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Sailboat specifications and datasheets

Kelt 7.60 keel and centerboard

The Kelt 7.60, here in "keel and centerboard" version, is a 24’11” monohull sailboat designed by Jean Berret. She was built by Kelt (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1979 and 1985 with 489 hulls completed.
Kelt 7.60 Kelt 7.60 sailplanKelt 7.60 layoutKelt 7.60 sailing
Kelt 7.60's   Main Features
Model Kelt 7.60
Version Keel and centerboard
Type of hull Monohull
Category Cruising monohull
Cockpit Closed aft cockpit
Shipyard
Designer Jean Berret
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich balsa / fiberglass / polyester
First built hull 1979
Last built hull 1985
Number of hulls built 489
Appendages Centerboard :
Centerboard in the keel
Helm 1 tiller
Rudder 1 transom hung rudder
Unsinkable No
Trailerable No
French navigation category 3
Standard public price ex. VAT (indicative only) N/A
Kelt 7.60's   Main dimensions
Length overall 27’ 2”
Hull length 24’ 11”
Waterline length 22’
Beam (width) 9’ 1”
Waterline beam (width) 7’ 6”
Draft 5’ 5”
Draft when appendages up 2’ 8”
Mast height from DWL 32’ 6”
Fore freeboard 3’ 2”
Mid-ship freeboard 3’
Light displacement 4850 lbs
Maximum displacement 5798 lbs
Ballast weight 1720 lbs
Ballast type Cast iron exterior ballast with steel centerboard
French customs tonnage 5.54 Tx
Kelt 7.60's   Rig and sails
Upwind sail area 407 sq.ft
Downwind sail area 691 sq.ft
Mainsail area 131 sq.ft
Genoa area 277 sq.ft
Solent area 201 sq.ft
Jib area 90 sq.ft
Symetric spinnaker area 560 sq.ft
Rigging type Sloop Marconi masthead
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle 0 °
IiFore triangle height (from mast foot to fore stay attachment) 30’ 5”
JiFore triangle base (from mast foot to bottom of forestay) 10’ 2”
PiMainsail hoist measurement (from tack to head) 25’ 8”
EiMainsail foot measurement (from tack to clew) 9’ 2”
Kelt 7.60's   Performances
HN (French rating) 9.0
IOR rating 20.1
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.
22.38
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.
37.92
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.
207
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.
35 %
Wetted surface 154 sq.ft
Maximum transverse section 8 sq.ft
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.
6.28 knots
Kelt 7.60's   Auxiliary engine
Engine(s) 1
Engine type Outboard or inboard engine
Engine (min/max) 4 HP / 10 HP
Fuel type Gas
Kelt 7.60's   Accommodation
Cabin(s) 1
Berth(s) (min/max) 4 / 5
Head(s) 1
Fresh water tank capacity 26.4 gal
Maximum headroom 6’
Galley headroom 5’ 8”
Kelt 7.60's   Saloon
Maximum headroom 5’ 8”
Berth length 6’ 7”
Berth width 2’ 2”
Kelt 7.60's   Fore cabin
Maximum headroom 5’ 1”
Berth length 7’ 1”
Berth width 5’ 8”

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