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Sailboat specifications and datasheets

Delphia 47 deep draft

The Delphia 47, here in "deep draft" version, is a 46’7” monohull sailboat designed by Andrzej Skrzat. She was built by Delphia Yachts (Poland) and made of monolithic fiberglass / polyester (composite infusion). The production started in 2008 .

The Delphia 47 is as well listed, on Boat-Specs.com, in version Shoal draft and Keel and centerboard.

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Delphia 47's   Main Features
Model Delphia 47
Version Deep draft
Type of hull Monohull
Category Cruising sailboat
Shipyard
Designer Andrzej Skrzat
Construction Hull:
monolithic fiberglass / polyester (composite infusion)
Deck:
sandwich PVC / fiberglass / polyester (composite infusion)
First built hull 2008
Last built hull Still in production
Appendages Keel :
Fin with bulb
Helm 2 wheels
Rudder 1 spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) About
214 000
(2017)
Delphia 47's   Main dimensions
Length overall 47’ 6”
Hull length 46’ 7”
Waterline length 42’ 2”
Beam (width) 14’ 8”
Draft 7’ 6”
Mast height from DWL 67’ 1”
Light displacement 29762 lbs
Ballast weight 9921 lbs
Delphia 47's   Rig and sails
Upwind sail area 1207 sq.ft
Mainsail area 593 sq.ft
Genoa area 614 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Number of levels of spreaders 3
Spreaders angle Swept-back
Delphia 47'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.
19.77
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.
180
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.
33 %
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.
8.70 knots
Delphia 47's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 75 HP
Fuel type Diesel
Fuel tank capacity 66 gal
Delphia 47's   Accommodation
Cabin(s) (min/max) 3 / 5
Berth(s) (min/max) 6 / 12
Head(s) (min/max) 2 / 4
Fresh water tank capacity 129.4 gal
Holding tank capacity 37.2 gal

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