Seller's Description
The First 18 SE combines the excitement of dinghy sailing with the security and stability of a modern keelboat. Its wide, flat hull and deep ballasted swinging keel ensure a solid, reliable platform, while twin rudders deliver precise control, even at high speeds. The boats design emphasizes simplicity, with a furling jib, an easy-to-use snuffer system for the spinnaker, and a carbon mast supporting a square-top mainsail that excels in light winds. The open cockpit is both spacious and ergonomic, making it ideal for solo sailors, double-handed adventures, or sailing with a small crew of up to three. Whether youre competing in thrilling races or enjoying relaxed coastal cruises, the First 18 SE provides an opportunity to grow your skills and make the most of every moment on the water.
Specifications: Hull Type: Lifting keel with dual rudders Rigging Type: Fractional Sloop LOA: 18.21 ft / 5.55 m S.A.: 264.80 ft / 24.60 m Beam: 7.81 ft / 2.38 m Displacement: 1,102.00 lb / 500 kg Ballast: 276.00 lb / 125 kg Max Draft: 4.92 ft / 1.50 m Min Draft: 0.59 ft / 0.18 m Displacement: 1,102.00 lb / 500 kg Construction: GRP
Equipment: I have owned this sailboat for a little over two years. She comes with the following sails main, furling jib, 2 asymmetrical spinnakers and a furling code zero (65). The motor is a 2024 Suzuki 2.5. Comes with trailer, fenders, docklines, boom cover, jib cover and full cover. 2025 I replaced 90% of the running rigging. Super clean top and bottom. Ready to race. :)
Specs
- Designer
- Samuel Manuard
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Lifting
- Rudder
- Twin
- Construction
- GRP
Dimensions
- Length Overall
- 18′ 2″ / 5.6 m
- Waterline Length
- ?
- Beam
- 7′ 9″ / 2.4 m
- Draft
- 0′ 7″ / 0.2 m — 4′ 11″ / 1.5 m
- Displacement
- 1,100 lb / 500 kg
- Ballast
- 280 lb / 125 kg
Rig and Sails
- Type
- Fractional Sloop
- Reported Sail Area
- 265′² / 24.6 m²
- Total Sail Area
- ?
Mainsail
- Sail Area
- ?
- P
- ?
- E
- ?
- Air Draft
- 27′ 11″ / 8.5 m
Foresail
- Sail Area
- ?
- I
- ?
- J
- ?
- Forestay Length
- ?
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 1
Calculations
- Hull Speed
- ?
Hull Speed
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Formula
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
- Sail Area/Displacement
-
39.7
>20: high performance
Sail Area / Displacement Ratio
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
Formula
SA/D = SA ÷ (D ÷ 64)2/3
- SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D: Displacement in pounds.
- Ballast/Displacement
-
25.0
<40: less stiff, less powerful
Ballast / Displacement Ratio
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Formula
Ballast / Displacement * 100
- Displacement/Length
- ?
Displacement / Length Ratio
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
Formula
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
- Comfort Ratio
- ?
Comfort Ratio
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Formula
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
- D: Displacement of the boat in pounds
- LWL: Waterline length in feet
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
- Capsize Screening
-
3.0
>2.0: better suited for coastal cruising
Capsize Screening Formula
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
Formula
CSV = Beam ÷ ³√(D / 64)
- Beam: Width of boat at the widest point in feet
- D: Displacement of the boat in pounds
Notes
In 2018 Beneteau purchased a controlling stake in the Slovenian builder Seascape, bringing all Seascape models into the fold of its First range.
SE=Seascape Edition.
Called the FIRST 18 from 2018-2020
Asym SA: 32 sqm / 344.45 sq ft
Bowsprit: 1.4m / 4.59 ft
Displacement above = light.
Shallow keel: draft - 0.3 - 1.1m / 0.92 - 3.58ft; ballast: 145 kg / 320 lbs.
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