Detailed sailboat specifications and datasheets since 2015
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Imperial & Metricboth
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Trident 80 (Shoal draft) vs Trident 80 (Deep draft)

Main featuresTrident 80 Shoal draftTrident 80 Deep draft
Model
Trident 80
Trident 80
Version
Shoal draft
Deep draft
Hull type
Monohull
Monohull
Category
Cruising sailboat
Cruising sailboat
Sailboat builder
SMAP Neptune
SMAP Neptune
Sailboat designer
Country
France
France
Construction
Hull and deck: GRP (glass reinforced polyester)
Hull and deck: GRP (glass reinforced polyester)
Number of hulls built
About 600
About 600
First built hull
1975
1975
Last built hull
1988
1988
Appendages
Keel : fin without bulb
Keel : fin without bulb
Helm
Single tiller
Single tiller
Rudder
Single semi-spade rudder
Single semi-spade rudder
Unsinkable
No
No
Trailerable
No
No
Former French navigation category
2
2
 
Main dimensionsTrident 80 Shoal draftTrident 80 Deep draft
Hull length
26’ 2”8 m
26’ 2”8 m
Waterline length
23’ 5”7.14 m
23’ 5”7.14 m
Beam (width)
9’ 6”2.9 m
9’ 6”2.9 m
Draft
4’ 10”1.45 m
5’ 2”1.6 m
Light displacement (MLC)
5181 lb2350 kg
5181 lb2350 kg
Ballast weight
2094 lb950 kg
2094 lb950 kg
French customs tonnage
6.32 Tx
6.32 Tx
 
Rig and sailsTrident 80 Shoal draftTrident 80 Deep draft
Upwind sail area
398 ft²37 m²
398 ft²37 m²
Downwind sail area
700 ft²65 m²
700 ft²65 m²
Mainsail area
118 ft²11 m²
118 ft²11 m²
Genoa area
280 ft²26 m²
280 ft²26 m²
Jib area
151 ft²14 m²
151 ft²14 m²
Stormjib area
43 ft²4 m²
43 ft²4 m²
Symmetric spinnaker area
581 ft²54 m²
581 ft²54 m²
Gennaker area
291 ft²27 m²
291 ft²27 m²
Rigging type
Sloop Marconi masthead
Sloop Marconi masthead
Mast configuration
Deck stepped mast
Deck stepped mast
Rotating spars
No
No
Number of levels of spreaders
1
1
Spreaders angle
0 °
0 °
Spars construction
Aluminum spars
Aluminum spars
Standing rigging
1x19 strand wire continuous
1x19 strand wire continuous
 
PerformancesTrident 80 Shoal draftTrident 80 Deep draft
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.
225 ft²/T20.93 m²/T
225 ft²/T20.93 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.
396 ft²/T36.77 m²/T
396 ft²/T36.77 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.
183
183
Ballast ratio
 iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.

The higher the ballast ratio is, the greater is the stability.
40 %
40 %
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.
6.49 knots
6.49 knots
 
Auxiliary engineTrident 80 Shoal draftTrident 80 Deep draft
Engine(s)
1 outboard or inboard engine
1 outboard or inboard engine
Engine(s) power (min./max.)
8 HP / 10 HP
8 HP / 10 HP
Fuel type
Diesel for inboard engine, gas for outboard
Diesel for inboard engine, gas for outboard
 
Accommodations and layoutTrident 80 Shoal draftTrident 80 Deep draft
Cockpit
Closed aft cockpit
Closed aft cockpit
Cabin(s)
1
1
Berth(s) (min./max.)
4 / 5
4 / 5
Head(s)
1
1
Freshwater tank capacity
13.2 gal50 liters
13.2 gal50 liters
Maximum headroom
5’ 11”1.8 m
5’ 11”1.8 m
 
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