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Sailboat specifications and datasheets

Dehler 30 OD

The Dehler 30 OD is a 30’ monohull sailboat designed by Fietje Judel and Rolf E. Vrolijk. She was built by Dehler (Germany) and made of sandwich PVC / fiberglass / polyester (vacuum infusion). The production started in 2019 .

Find out more about the Dehler 30 OD on Boat-Spec's blog: European Yacht of the Year 2020 nominated sailboats

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Dehler 30 OD's   Main Features
Model Dehler 30 OD
Type of hull Monohull
Category One design sailboat
Shipyard
Designer Fietje Judel
Rolf E. Vrolijk
Construction Hull and deck:
sandwich PVC / fiberglass / polyester (vacuum infusion)
First built hull 2019
Last built hull Still in production
Appendages Keel :
T-shaped keel (with bulb)
Helm 1 tiller
Rudder 2 spade rudders
Cockpit Open aft cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only)
N/A
Dehler 30 OD's   Main dimensions
Length overall 33’ 10”
Hull length 30’
Waterline length 29’ 5”
Beam (width) 10’ 10”
Draft 7’ 2”
Mast height from DWL 46’ 11”
Light displacement 6173 lbs
Ballast weight 2072 lbs
Ballast type Carbon fiber fin with lead bulb
Water ballast Aft water ballast
Water ballast capacity 2 x 52.8 gal
Dehler 30 OD's   Rig and sails
Upwind sail area 673 sq.ft
Downwind sail area 1389 sq.ft
Mainsail area 366 sq.ft
Jib area 307 sq.ft
Asymmetric spinnaker area 1023 sq.ft
Code 0 area 484 sq.ft
Rigging type Sloop Marconi (square top mainsail) 9/10
Rotating spars No
Mast position Deck stepped mast
Spars Mast in Carbon fiber and boom in Aluminum
Standing rigging Single-strand (ROD) discontinuous
Number of levels of spreaders 1
Spreaders angle 27 °
IiFore triangle height (from mast foot to fore stay attachment) 41’ 1”
JiFore triangle base (from mast foot to bottom of forestay) 13’ 6”
PiMainsail hoist measurement (from tack to head) 39’ 5”
EiMainsail foot measurement (from tack to clew) 13’ 1”
Dehler 30 OD'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.
31.46
Downwind 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.
64.94
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.
110
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.
34 %
Righting moment @ 1°iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after a rotational displacement. Its value corresponds to the torque needed to heel the boat for this angle.
Higher the righting moment is for an angle, greater is the stability at this angle.
579 lbs.ft
Righting moment @ 30°iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after a rotational displacement. Its value corresponds to the torque needed to heel the boat for this angle.
Higher the righting moment is for an angle, greater is the stability at this angle.
13381 lbs.ft
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.
7.27 knots
Dehler 30 OD's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 10 HP
Fuel type Diesel
Fuel tank capacity 6.6 gal
Dehler 30 OD's   Accommodation
Cabin(s) 2
Berth(s) (min/max) 6 / 8
Head(s) 1
Fresh water tank capacity 10.6 gal
Holding tank capacity 9.2 gal

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