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Sailboat specifications and datasheets

Hylas 49

The Hylas 49 is a 48’10” monohull sailboat designed by Drake Sparkman and Olin Stephens. She was built by Hylas Yachts (Taiwan) and made of single skin fiberglass / vinylester. The production started in 1992 .
Hylas Yachts Hylas 49 Hylas Yachts Hylas 49 sailplanHylas Yachts Hylas 49 layoutHylas Yachts Hylas 49 layoutHylas Yachts Hylas 49 layoutHylas Yachts Hylas 49 sailingHylas Yachts Hylas 49 accommodationsHylas Yachts Hylas 49 accommodations
Hylas 49's   Main Features
Model Hylas 49
Type of hull Monohull
Category Offshore cruising sailboat
Shipyard
Designer Drake Sparkman
Olin Stephens
Construction Hull:
single skin fiberglass / vinylester
Deck:
sandwich balsa / fiberglass / polyester
First built hull 1992
Last built hull Still in production
Appendages Keel :
Semi-long keel
Helm 1 wheel
Rudder 1 rudder on skeg
Cockpit Central cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only)
N/A
Hylas 49's   Main dimensions
Length overall 48’ 10”
Hull length 48’ 10”
Waterline length 39’ 6”
Beam (width) 14’ 2”
Draft 6’
Mast height from DWL 63’ 5”
Light displacement 32000 lbs
Ballast weight 14500 lbs
Ballast type Lead
Hylas 49's   Rig and sails
Upwind sail area 1251 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 2
Spreaders angle 0 °
Hylas 49'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.
19.53
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.
235
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.
45 %
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.
8.42 knots
Hylas 49's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 75 HP
Fuel type Diesel
Fuel tank capacity 145.3 gal
Hylas 49's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 7
Head(s) 2
Fresh water tank capacity 249.6 gal
Water heater capacity 9.8 gal
Holding tank capacity 52.8 gal
Hylas 49's   Fore cabin
Berth length 6’ 10”
Hylas 49's   Aft cabin
Berth length 6’ 7”
Berth width 5’ 2”

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