J/112e

Sailboat specifications

The J/112e is a 36’1” (10.99m) cruiser-racer sailboat designed by Alan Johnstone (United States). She is built since 2015 by J/Boats (United States). She has been awarded "2017 - Sailing World - Boat of the Year: Best Crossover" and "2017 - SAIL magazine - Best Performance Boat over 30ft".

Find out more about the J/112e on Boat-Spec's blog: European Yacht of the Year 2017.

J/112e's main features

Model

J/112e

Hull type

Monohull

Category

Offshore cruiser-racer sailboat

Sailboat builder

J/Boats

Sailboat designer

Alan Johnstone

Sailboat range

J/Elégance

Country

United States

Construction

GRP (glass reinforced polyester):
Sandwich balsa fiberglass vinylester (vacuum infusion)

First built hull

2015

Last built hull

Still in production

Award(s)

2017: Sailing World - Boat of the Year: Best Crossover
2017: SAIL magazine - Best Performance Boat over 30ft

Appendages

Keel : fin with bulb

Helm

Single helm wheel

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

176 000 €

(2020)

J/112e's main dimensions

Hull length: 36’ 1”10.99 m
Waterline length: 31’ 10”9.68 m
Beam (width): 11’ 10”3.6 m
Draft: 6’ 11”2.1 m
Mast height from D_WL: 56’ 10”17.32 m
Light displacement (M_LC): 11299 lb5125 kg
Ballast weight: 3816 lb1731 kg
Ballast type: Cast iron fin with lead bulb

J/112e's rig and sails

Upwind sail area: 764 ft²71 m²
Downwind sail area: 1690 ft²157 m²
Mainsail area: 398 ft²37 m²
Genoa area: 366 ft²34 m²
Asymmetric spinnaker area: 1292 ft²120 m²
Rigging type: Sloop Marconi fractional
Mast configuration: Keel stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: Swept-back
Spars construction: Aluminum spars
Standing rigging: Single-strand (ROD)

J/112e'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.: 257 ft²/T23.89 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.: 569 ft²/T52.82 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.: 160
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.: 34 %
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.: 7.55 knots