The Dehler 34 Sailboat
Specs & Key Performance Indicators

The Dehler 34, a fractionally-rigged sloop, was designed by E G Van de Stadt and built in Germany by Dehler Yachts.

A Dehler 34 sailboatA Dehler 34 doing its best to sail on a windless day

Published Specification for the Dehler 34

Underwater Profile: Fin keel with spade rudder

Hull Material: GRP (Fibreglass)

Length Overall: 33'2" / 10.1m

Waterline Length: 27'3" / 8.3m

Beam: 11'3" / 3.4m 

Draft: 5'9" / 1.8m

Rig Type: Fractional rigged sloop

Displacement: 8,818lb / 4,000kg

Designer: E G Van de Stadt

Builder: Dehler Yachts (Germany)

Year First Built: 1983


Published Design Ratios for the Dehler 34

1. Sail Area/Displacement Ratio: 18.5

2. Ballast/Displacement Ratio: 45.0

3. Displacement/Length Ratio: 195

4. Comfort Ratio: 18.9

5. Capsize Screening Formula: 2.16

read more about these all-revealing numbers...

Summary Analysis of the Design Ratios for the Dehler 34

1. A Sail Area/Displacement Ratio of 18.5 suggests that the Dehler 34 will, in the right conditions, approach her maximum hull speed readily and satisfy the sailing performance expectations of most cruising sailors.

2. A Ballast/Displacement Ratio of 45.0 means that the Dehler 34 will stand up well to her canvas in a blow, helping her to power through the waves.

3. A Displacement/Length Ratio of 195, tells us the Dehler 34 is clearly a light displacement sailboat. If she's loaded with too much heavy cruising gear her performance will suffer dramatically.

4. Ted Brewer's Comfort Ratio of 18.9 suggests that the Dehler 34 will have the motion underway to that of a lightweight racing boat. Crew comfort will often be memorable for all the wrong reasons. Upwind in lively conditions the Dehler 34 will be tender and slam enough to shake your fillings out with a motion that most cruising sailors have no desire to get used to.

5. The Capsize Screening Formula of 2.2 tells us that a Dehler 34 would not be a good choice of sailboat for ocean passage-making, owing to the increased risk of capsize in strong winds and heavy seas when compared to a similar sailboat with a CSF of less than 2.0.

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More about the Dehler 34...

The Dehler 34 is a versatile yacht that can be customized to suit your sailing needs, whether you are cruising or racing. You can choose from different keel options, rig options and interior layouts. The Dehler 34 also has a unique feature called the Dehler Carbon Cage, which is a structural subframe made of carbon fiber that reinforces the hull and gives it 20% more stability.

Dehler 34 layoutThe Dehler 34 Standard Layout

The Dehler 34 has been nominated and won several awards for its innovative design and performance. Some of these awards include:

  • European Yacht of the Year 2017 (Performance Cruiser category)
  • Sailing Today Awards 2017 (Performance Boat category)
  • Sail Magazine Best Boats 2018 (Performance Monohull category)

Accommodation
The Dehler 34 has a spacious and comfortable interior that can accommodate up to six people. The interior is available in two wood finishes: mahogany or teak. You can also choose from different floorboards and upholstery colors to match your taste. The interior has a modern and elegant style, with rounded corners, soft lighting and high-quality fittings.

The standard layout of the Dehler 34 has two cabins: one forward and one aft. The forward cabin has a double V-berth, a hanging locker and shelves. The aft cabin has a large double berth, a hanging locker and storage space under the berth. Both cabins have opening hatches for ventilation and natural light.

The saloon is the main living area of the Dehler 34. It has a U-shaped settee on the port side, which can be converted into a double berth if needed. There is also a folding saloon table with a pull-out bar integrated into it. On the starboard side, there is a long settee that can be used as a single berth. There are also lockers and shelves above the settees for storage.

The galley is located on the port side of the saloon. It has a two-burner stove with oven, a top-loading refrigerator, a double sink with hot and cold water, and plenty of drawers and cabinets for storing utensils and provisions.

The navigation station is located on the starboard side of the saloon. It has a movable chart table that can be adjusted to face forward or aft. There is also an ergonomic seat with storage underneath, an electrical panel, a radio device and a plotter.

The head is located aft of the navigation station. It has a marine toilet, a sink with hot and cold water, a shower with an electric drain pump, a mirror, a cabinet and an opening portlight.

Hull and Deck
The hull of the Dehler 34 is made of fibreglass with vinylester resin and balsa core sandwich construction. The hull shape is optimized for performance and stability, with a sharp bow entry, a flat run aft and moderate freeboard. The hull colour is white with dark grey stripes.

The deck of the Dehler 34 is also made of fibreglass with vinylester resin and balsa core sandwich construction. The deck has an anti-slip surface and integrated toe rails for safety. The deck layout is clear and tidy, with all ropes hidden under the deck or led to the cockpit through clutches.

The cockpit of the Dehler 34 is large and ergonomic, with plenty of space for manoeuvring and relaxing.

The cockpit also has six winches integrated as standard: two primary winches near the helm stations for genoa sheets, two secondary winches on the coachroof for halyards and reefing lines, and two optional winches on the cockpit coaming for spinnaker sheets. All winches are self-tailing and can be controlled with one hand.

The cockpit has a folding table that can be mounted on the floor or on the steering pedestal. The table has two leaves that can be opened or closed depending on the space needed. The table also has a storage compartment and a handrail.

The cockpit has a large locker on the port side that can be accessed from the cockpit or from the head. The locker can store sails, fenders, lines or other equipment. There is also a smaller locker on the starboard side for gas bottles or other items.

The Dehler 34 is equipped with a Volvo Penta D1-20 diesel engine with a saildrive and a two-blade folding propeller. The engine has a power output of 21 hp and a fuel consumption of 2 l/h at cruising speed. The engine is located under the companionway steps and can be accessed from three sides for maintenance. The fuel tank has a capacity of 160 l and is located under the aft cabin berth.

The above text was drafted by sailboat-cruising.com using GPT-4 (OpenAI’s large-scale language-generation model) as a research assistant to develop source material; we believe it to be accurate to the best of our knowledge.

Other sailboats in the Dehler range include:


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