Detailed sailboat specifications and datasheets since 2015
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Delphia 40.3 Deep draft

Sailboat specifications

The Delphia 40.3 is a 39’2” (11.95m) cruising sailboat designed by Andrzej Skrzat (Poland). She was built between 2009 and 2019 by Delphia Yachts (Poland). The Deep draft version offers a deeper L-shaped keel bringing extra performance especially upwind.

The Delphia 40.3 is as well listed, on Boat-Specs.com, in Shoal draft and Keel and centerboard version (see all the versions compared).

Delphia 40.3's main features

Model
Delphia 40.3
Version
Deep draft
Hull type
Monohull
Category
Cruising sailboat
Sailboat builder
Sailboat designer
Country
Poland
Construction
GRP (glass reinforced polyester):
- Hull: Single skin fiberglass polyester
- Deck: Sandwich fiberglass polyester
First built hull
2009
Last built hull
2019
Appendages
Keel : L-shaped keel (with bulb)
Helm
Twin helm wheels
Rudder
Single spade rudder
Unsinkable
No
Trailerable
No
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
A
Standard public price ex. VAT (indicative only)
About 
135 000
 (2017)

Delphia 40.3's main dimensions

Overall length
40’ 6”12.35 m
Hull length
39’ 2”11.95 m
Waterline length
36’ 7”11.15 m
Beam (width)
12’ 11”3.94 m
Draft
7’ 5”2.27 m
Light displacement (MLC)
18960 lb8600 kg
Ballast weight
6085 lb2760 kg

Delphia 40.3's rig and sails

Upwind sail area
739 ft²68.7 m²
Mainsail area
448 ft²41.6 m²
Jib area
292 ft²27.1 m²
Rigging type
Sloop Marconi 9/10
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
Swept-back
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire

Delphia 40.3'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.
176 ft²/T16.37 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.
176
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.
32 %
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.
8.10 knots

Delphia 40.3's auxiliary engine

Engine(s)
1 inboard engine
Engine(s) power (min./max.)
38 HP / 55 HP
Fuel type
Diesel
Fuel tank capacity
55.5 gal210 liters

Delphia 40.3's accommodations and layout

Cockpit
Closed aft cockpit
Cabin(s) (min./max.)
2 / 4
Berth(s) (min./max.)
4 / 10
Head(s)
2
Freshwater tank capacity
84.5 gal320 liters
Have you spotted incorrect data?  You can report it in the forum or contact the webmaster

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First built hull
Hull length
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2009
39’ 2”11.95 m
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1988
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39’ 4”11.99 m
Sun Odyssey 379 Deep draft (Jeanneau)
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Sun Odyssey 39 DS Standard (Jeanneau)
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2010
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Etap 39s Deep draft (Etap)
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