The
Delphia 31 is a 31’1” (9.48m) cruising sailboat designed by
Andrzej Skrzat (Poland). She was built between 2012 and 2017 by
Delphia Yachts (Poland). The
Centerboard (Trunk) version grants a minimal draft when the centerboard is lifted allowing beaching and easy access to shallow areas.
The
Delphia 31 is as well listed, on Boat-Specs.com, in
Deep draft and
Keel and centerboard version (
see all the versions compared).
Delphia 31's main features
Model
Delphia 31
Version
Centerboard (Trunk)
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
2012
Last built hull
2017
Appendages
Centerboard : pivoting centerboard
Helm
Single helm wheel
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 < 0,5mB
Standard public price ex. VAT (indicative only)
Delphia 31's main dimensions
Overall length
32’ 4”9.85 m
Hull length
31’ 1”9.48 m
Beam (width)
11’ 2”3.4 m
Draft
5’ 5”1.65 m
Draft when appendages up
1’ 6”0.45 m
Mast height from DWL
45’ 6”13.87 m
Light displacement (MLC)
11464 lb5200 kg
Ballast weight
3638 lb1650 kg
Delphia 31's rig and sails
Upwind sail area
488 ft²45.35 m²
Downwind sail area
1216 ft²113 m²
Mainsail area
248 ft²23 m²
Solent area
241 ft²22.35 m²
Asymmetric spinnaker area
969 ft²90 m²
Rigging type
Sloop Marconi 9/10
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
1
Spreaders angle
Swept-back
Spars construction
Aluminum spars
Standing rigging
Continuous
Delphia 31'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.163 ft²/T15.11 m²/T
Downwind 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.405 ft²/T37.65 m²/T
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 %
Delphia 31's auxiliary engine
Engine(s)
1 inboard engine
Engine(s) power (min./max.)
18 HP / 30 HP
Fuel type
Diesel
Fuel tank capacity
26.4 gal100 liters
Delphia 31's accommodations and layout
Cockpit
Open aft cockpit
Cabin(s)
2
Berth(s) (min./max.)
6 / 7
Head(s)
1
Freshwater tank capacity
39.6 gal150 liters
Holding tank capacity
12.4 gal47 liters
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