Defender 27 Information, Review, Specs

Boat drawing
Make
Model
Number Built
Production Year(s)
1971 - ??

The Defender 27, a notable fiberglass cruising sailboat, emerged from the Dutch yacht builder Jachtwerf F. Dekker en Zonen, more commonly known as Dekker & Sons. Introduced in 1971, this monohull sailboat was conceived as a reliable and accessible vessel, ideally suited for recreational use on inland waters and leisurely family cruising. Designed by the collaborative talents of French naval architects Jacques Gaubert and André Mauric, the Defender 27 quickly became the yard's most popular model, solidifying Dekker & Sons' reputation for producing sturdy fiberglass yachts Notes in, Builder Article.

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The Defender 27's lineage traces back to the earlier Defender 15, an IOR 1/4 ton design, from which it inherited its hull. For the 27, Dekker & Sons incorporated more freeboard and an entirely new deck, enhancing its cruising capabilities and interior volume [Notes in. The design collaboration with Jacques Gaubert and André Mauric underscored the shipyard's commitment to professional design and modern construction techniques, characteristic of their entry into the fiberglass era. This approach allowed Dekker & Sons to offer accessible cruising yachts to a broader market, aligning with their ethos of building sturdy and reliable sailboats. Following the success of the Defender 27, a stretched version, the Defender 32, was later introduced, further expanding the popular Defender series [Notes in.

Sailing Performance and Handling

As a moderate weight sailboat, the Defender 27 is generally considered to be slightly underpowered, yet it is recognized for being very stable and stiff. With a theoretical hull speed of 5.84 knots, it is designed for steady progress rather than outright speed. The vessel features a fin keel, which contributes to its upwind performance and responsiveness, paired with a skeg-hung rudder, known for providing robust steering control and protection to the rudder blade [Notes in. Its design lends itself well to recreational use, offering a dependable and classic sailing experience.

Accommodations and Layout

The interior of the Defender 27 presents a classic aesthetic, often featuring wooden accents that contribute to a warm and traditional atmosphere. The layout is practical and designed to offer comfortable space for up to four people, making it suitable for short cruises or weekend getaways. While specific headroom figures can vary, the design typically includes a V-berth in the forward cabin, a main salon area with settees that may convert into berths, and a compact galley. Storage solutions are integrated throughout the boat to accommodate cruising essentials. The fresh water capacity for the Defender 27 is 26 gallons, or 98 liters.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Skeg-Hung
Ballast
1874 lbs
Displacement
4409 lbs
Water Capacity
26 gal
Fuel Capacity
-

Engine

Engine Make
Engine Model
Engine Type
Engine HP
Engine Count
1
Drive Type
Fuel Type
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
24.61 ft
E (Main Foot)
8.37 ft
I (Foretriangle Height)
27.89 ft
J (Foretriangle Base)
10.01 ft
Forestay Length (est)
29.63 ft
Main Sail Area
102.99 sqft
Foretriangle Sail Area
139.59 sqft
Total Sail Area (Reported)
243 sqft
Total Sail Area (Calc)
242.58 sqft

Dimensions

LOA
26.25 ft
LWL
19 ft
Beam
8.2 ft
Draft
4.13 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
5.84 kn
Pounds per Inch Immersion
556.69