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Sailboat specifications and datasheets

Hylas 70 deep draft

The Hylas 70, here in "deep draft" version, is a 68’11” monohull sailboat designed by German Frers. She was built by Hylas Yachts (Taiwan) and made of single skin carbon fiber / vinylester with Kevlar reinforcements. The production started in 2007 and has been awarded the title of "Cruising World - Boat of the Year - Category: Full-Size Cruiser" in 2008.

The Hylas 70 is as well listed, on Boat-Specs.com, in version Shoal draft.

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Hylas 70's   Main Features
Model Hylas 70
Version Deep draft
Type of hull Monohull
Category Offshore cruising sailboat
Shipyard
Designer German Frers
Award 2008 Cruising World - Boat of the Year - Category: Full-Size Cruiser
Construction 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
Appendages Keel :
L-shaped keel (with bulb)
Helm 2 wheels
Rudder 1 semi-spade rudder
Cockpit Central cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only)
N/A
Hylas 70's   Main dimensions
Length overall 68’ 11”
Hull length 68’ 11”
Waterline length 61’ 7”
Beam (width) 18’
Draft 9’ 6”
Light displacement 75178 lbs
Ballast weight 29321 lbs
Hylas 70's   Rig and sails
Upwind sail area 2422 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging Single-strand (ROD) discontinuous
Number of levels of spreaders 3
Spreaders angle 0 °
Hylas 70's   Performances
Upwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
21.40
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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 ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
39 %
Hull speediAs 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
Hylas 70's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 260 HP
Fuel type Diesel
Fuel tank capacity 700.1 gal
Hylas 70's   Accommodation
Cabin(s) 4
Berth(s) (min/max) 8 / 10
Head(s) 4
Fresh water tank capacity 400.2 gal
Water heater capacity 19.8 gal
Holding tank capacity 66 gal

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