Detailed sailboat specifications and datasheets since 2015
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Nacra F18

Sailboat specifications

The Nacra F18 is a 18’1” (5.52m) double handed sport/beach catamaran designed by Alain Comyn (France). She was built between 2002 and 2006 by Nacra (United States).

Nacra F18's main features

Model
Nacra F18
Hull type
Catamaran
Category
Double handed sport/beach catamaran
Sailboat builder
Sailboat designer
Sailboat collection
Country
United States
Construction
GRP (glass reinforced polyester):
Sandwich foam fiberglass vinylester
First built hull
2002
Last built hull
2006
Appendages
Centerboard : twin daggerboards
Helm
Single tiller
Rudder
Twin transom hung rudders
Unsinkable
No
Trailerable
Yes
EC design category
 iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)

A: Wind < force 9, Waves < 10m
B: Wind < force 8, Waves < 8m
C: Wind < force 6, Waves < 4m
D: Wind < force 4, Waves < 0,5m
C
Standard public price ex. VAT (indicative only)
N/A

Nacra F18's main dimensions

Hull length
18’ 1”5.52 m
Waterline length
18’5.5 m
Beam (width)
8’ 6”2.6 m
Light displacement (MLC)
397 lb180 kg

Nacra F18's rig and sails

Upwind sail area
228 ft²21.15 m²
Downwind sail area
409 ft²38 m²
Mainsail area
183 ft²17 m²
Jib area
45 ft²4.15 m²
Asymmetric spinnaker area
226 ft²21 m²
I
 iFore triangle height (from mast foot to fore stay top attachment)
18’ 10”5.73 m
P
 iMainsail hoist measurement (from tack to head)
28’8.53 m
Rigging type
Sloop Marconi fractional
Mast configuration
Fore beam stepped mast
Rotating spars
Yes
Number of levels of spreaders
1
Spreaders angle
Swept-back (diamond)
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire continuous

Nacra F18's performances

Crew
2
Trapezes
2 set(s)
PY (Portsmouth Yardstick) rating
 iPortsmouth Yardstick is an empirical rating system allowing small sailboats (dinghies included), of different sizes and designs, to race each other fairly. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats.
693
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.
714 ft²/T66.34 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.
1283 ft²/T119.2 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.
31

Nacra F18's auxiliary engine

Engine(s)
No engine

Nacra F18's accommodations and layout

Cockpit
No cockpit
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