First 28 Deep draft
Sailboat specifications
The
First 28 is a 28’2” (8.6m) cruiser-racer sailboat designed by
Groupe Finot (France). She was built between 1980 and 1983 by
Bénéteau (France). The
Deep draft version displays a deeper fin allowing a lower center of gravity and extra performance especially upwind.
The
First 28 is as well listed, on Boat-Specs.com, in
Shoal draft and
Swing keel version (
see all the versions compared).
First 28's main features
Model
First 28
Version
Deep draft
Hull type
Monohull
Category
Cruiser-racer sailboat
Sailboat builder
Sailboat designer
Sailboat range
Country
France
Construction
GRP (glass reinforced polyester):
- Hull: Single skin fiberglass polyester
- Deck: Sandwich balsa fiberglass polyester
Number of hulls built
About 600
First built hull
1980
Last built hull
1983
Appendages
Keel : fin without bulb
Helm
Single tiller
Rudder
Single spade rudder
Unsinkable
No
Trailerable
No
Standard public price ex. VAT (indicative only)
First 28's main dimensions
Overall length
28’ 10”8.79 m
Hull length
28’ 2”8.6 m
Waterline length
24’ 4”7.4 m
Beam (width)
9’ 10”3 m
Draft
5’ 7”1.72 m
Light displacement (MLC)
5952 lb2700 kg
Maximum displacement (MLDC)
2205 lb1000 kg
Ballast type
Cast iron
French customs tonnage
6.98 Tx
First 28's rig and sails
Upwind sail area
472 ft²43.85 m²
Downwind sail area
853 ft²79.25 m²
Mainsail area
164 ft²15.25 m²
Genoa area
308 ft²28.6 m²
Solent area
251 ft²23.3 m²
Jib area
167 ft²15.5 m²
Stormjib area
46 ft²4.3 m²
Symmetric spinnaker area
689 ft²64 m²
I
iFore triangle height (from mast foot to fore stay top attachment)34’ 5”10.5 m
J
iFore triangle base (from mast foot to bottom of forestay)11’ 6”3.5 m
P
iMainsail hoist measurement (from tack to head)29’ 11”9.12 m
E
iMainsail foot measurement (from tack to clew)9’ 6”2.9 m
Rigging type
Sloop Marconi masthead
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
1
Spreaders angle
0 °
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire continuous
First 28's performances
HN (French rating)
iHN or "Handicap Nationale" is an empirical rating system used in France allowing various monohulls, of different sizes and designs, to race each other fairly. It is particularly suitable for cruiser and cruiser-racer. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats.15.0
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.243 ft²/T22.61 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.440 ft²/T40.87 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.189
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 1.34.6.60 knots
First 28's auxiliary engine
Engine(s)
1 inboard engine
Engine(s) power (min./max.)
8 HP / 15 HP
Fuel tank capacity
6.6 gal25 liters
First 28's accommodations and layout
Cockpit
Closed aft cockpit
Cabin(s)
1
Berth(s) (min./max.)
5 / 6
Head(s)
1
Freshwater tank capacity
23.8 gal90 liters
Maximum headroom
6’1.84 m
Galley headroom
5’ 8”1.75 m
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1981
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1980
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1980
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1971
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1978
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1981
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1985
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1983
30’ 2”9.2 m
1984
30’ 8”9.35 m
1978
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1980
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1983
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1984
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1997
31’ 2”9.5 m