Idylle 13.50

Sailboat specifications

The Idylle 13.50 is a 42’4” (12.9m) cruising sailboat designed by Frers Naval Architecture & Engineering (Argentina). She was built since 1984 (and now discontinued) by Bénéteau (France).

Idylle 13.50's main features

Model: Idylle 13.50
Hull type: Monohull
Category: Offshore cruising sailboat
Sailboat builder: Bénéteau
Sailboat designer: Frers Naval Architecture & Engineering
Sailboat range: Idylle
Country: France
Construction: GRP (glass reinforced polyester):
- Hull: Single skin fiberglass polyester
- Deck: Sandwich balsa fiberglass polyester
First built hull: 1984
Last built hull: Discontinued
Appendages: Keel : fin without bulb
Helm: Single helm wheel
Rudder: Single semi-spade rudder
Unsinkable: No
Trailerable: No
Former French navigation category: 1
Standard public price ex. VAT (indicative only): N/A €

Idylle 13.50's main dimensions

Overall length: 44’ 4”13.5 m
Hull length: 42’ 4”12.9 m
Waterline length: 34’ 5”10.5 m
Beam (width): 13’ 6”4.1 m
Draft: 5’ 10”1.76 m
Light displacement (M_LC): 24251 lb11000 kg
Ballast weight: 8378 lb3800 kg

Idylle 13.50's rig and sails

Upwind sail area: 1055 ft²98 m²
Downwind sail area: 1884 ft²175 m²
Mainsail area: 377 ft²35 m²
Genoa area: 678 ft²63 m²
Jib area: 353 ft²32.8 m²
Stormjib area: 154 ft²14.3 m²
Symmetric spinnaker area: 1507 ft²140 m²
Rigging type: Sloop Marconi masthead
Mast configuration: Keel stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: 0 °
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire

Idylle 13.50's performances

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.: 213 ft²/T19.81 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.: 381 ft²/T35.38 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.: 269
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.: 35 %
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.: 7.86 knots