Sunbeam 46.1

Sailboat specifications

The Sunbeam 46.1 is a 45’11” (13.99m) cruising sailboat designed by J&J Design (Slovenia). She is built since 2018 by Sunbeam Yachts (Austria). She has been awarded "2019 - European Yacht of the Year: Luxury Cruiser".

Sunbeam 46.1's main features

Model

Sunbeam 46.1

Hull type

Monohull

Category

Offshore cruising sailboat

Sailboat builder

Sunbeam Yachts

Sailboat designer

J&J Design

Country

Austria

Construction

GRP (glass reinforced polyester):
- Hull: Sandwich foam fiberglass polyester
- Deck: Sandwich foam fiberglass polyester

First built hull

2018

Last built hull

Still in production

Award(s)

2019: European Yacht of the Year: Luxury Cruiser

Appendages

Keel : T-shaped keel (with bulb)

Helm

Twin helm wheels

Rudder

Single spade rudder

Unsinkable

Trailerable

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

Standard public price ex. VAT (indicative only)

About

428 000 €

(2020)

Sunbeam 46.1's main dimensions

Overall length: 48’ 5”14.75 m
Hull length: 45’ 11”13.99 m
Waterline length: 43’ 6”13.26 m
Beam (width): 14’ 7”4.45 m
Draft: 7’ 2”2.2 m
Light displacement (M_LC): 28660 lb13000 kg
Ballast weight: 10031 lb4550 kg
Ballast type: Cast iron

Sunbeam 46.1's rig and sails

Upwind sail area: 1238 ft²115 m²
Rigging type: Sloop Marconi 7/8
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: Swept-back
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire discontinuous

Sunbeam 46.1'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.: 224 ft²/T20.8 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.: 158
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.: 8.84 knots