Hylas 70 Deep draft

Sailboat specifications

The Hylas 70 is a 68’11” (21.01m) cruising sailboat designed by Frers Naval Architecture & Engineering (Argentina). She is built since 2007 by Hylas Yachts (Taiwan). The Deep draft version features a deeper T-shaped keel to grant extra performance especially upwind. She has been awarded "2008 - Cruising World - Boat of the Year: Full-Size Cruiser".

The Hylas 70 is as well listed, on Boat-Specs.com, in Shoal draft version (see all the versions compared).

Hylas 70's main features

Model

Hylas 70

Version

Deep draft

Hull type

Monohull

Category

Offshore cruising sailboat

Sailboat builder

Hylas Yachts

Sailboat designer

Frers Naval Architecture & Engineering

Country

Taiwan

Construction

Carbon fiber reinforced epoxy:
- Hull: Single skin carbon fiber vinylester with Kevlar reinforcements
- Deck: Sandwich balsa carbon fiber vinylester

First built hull

2007

Last built hull

Still in production

Award(s)

2008: Cruising World - Boat of the Year: Full-Size Cruiser

Appendages

Keel : L-shaped keel (with bulb)

Helm

Twin helm wheels

Rudder

Single semi-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)

N/A €

Hylas 70's main dimensions

Overall length: 68’ 11”21.01 m
Hull length: 68’ 11”21.01 m
Waterline length: 61’ 7”18.77 m
Beam (width): 18’5.49 m
Draft: 9’ 6”2.9 m
Light displacement (M_LC): 75178 lb34100 kg
Ballast weight: 29321 lb13300 kg

Hylas 70's rig and sails

Upwind sail area: 2422 ft²225 m²
Rigging type: Sloop Marconi masthead
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 3
Spreaders angle: 0 °
Spars construction: Aluminum spars
Standing rigging: Single-strand (ROD) discontinuous

Hylas 70'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.: 230 ft²/T21.4 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.: 146
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.: 39 %
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.: 10.52 knots