Detailed sailboat specifications and datasheets since 2015
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Dehler 35SQ Competition

Sailboat specifications

The Dehler 35SQ is a 34’6” (10.51m) cruiser-racer sailboat designed by Simonis Voogd Design (Netherlands). She was built since 2012 (and now discontinued) by Dehler (Germany). The Competition version features a deeper T-shaped keel to grant extra performance especially upwind.

The Dehler 35SQ is as well listed, on Boat-Specs.com, in Standard and Shoal draft version (see all the versions compared).

Dehler 35SQ's main features

Model
Dehler 35SQ
Version
Competition
Hull type
Monohull
Category
Cruiser-racer sailboat
Sailboat builder
Sailboat designer
Country
Germany
Construction
GRP (glass reinforced polyester):
Sandwich fiberglass polyester
First built hull
2012
Last built hull
Discontinued
Appendages
Keel : T-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)
N/A

Dehler 35SQ's main dimensions

Hull length
34’ 6”10.51 m
Waterline length
30’ 10”9.38 m
Beam (width)
11’ 6”3.49 m
Draft
7’ 1”2.15 m
Mast height from DWL
57’ 11”17.64 m
Light displacement (MLC)
11971 lb5430 kg
Ballast weight
4001 lb1815 kg
Ballast type
Cast iron fin with lead bulb

Dehler 35SQ's rig and sails

Upwind sail area
854 ft²79.3 m²
Downwind sail area
1561 ft²145 m²
Mainsail area
420 ft²39 m²
Genoa area
434 ft²40.3 m²
Jib area
355 ft²33 m²
Symmetric spinnaker area
1141 ft²106 m²
Gennaker area
980 ft²91 m²
I
 iFore triangle height (from mast foot to fore stay top attachment)
48’ 7”14.8 m
J
 iFore triangle base (from mast foot to bottom of forestay)
13’ 6”4.1 m
P
 iMainsail hoist measurement (from tack to head)
47’ 8”14.55 m
E
 iMainsail foot measurement (from tack to clew)
15’ 5”4.7 m
Rigging type
Sloop Marconi 9/10
Mast configuration
Keel stepped mast
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
Swept-back
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire

Dehler 35SQ'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.
276 ft²/T25.67 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.
505 ft²/T46.94 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.
186
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.
33 %
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.
7.43 knots

Dehler 35SQ's auxiliary engine

Engine(s)
1 inboard engine
Engine(s) power
28 HP
Fuel type
Diesel
Fuel tank capacity
23.2 gal88 liters

Dehler 35SQ's accommodations and layout

Cockpit
Open aft cockpit
Cabin(s)
2
Berth(s) (min./max.)
4 / 6
Head(s)
1
Freshwater tank capacity
34.3 gal130 liters
Boiler capacity
5.3 gal20 liters
Have you spotted incorrect data?  You can report it in the forum or contact the webmaster

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