Dickerson 40 Information, Review, Specs

Dickerson 40 Drawing
Make
Dickerson
Model
40
Builder
Dickerson Boatbuilders
Designer
Ernest Tucker
Number Built
Production Year(s)
1968 - 1974

The Dickerson 40 represents a pinnacle of the "Lucke era" at Dickerson Boatbuilders, serving as a refined, larger evolution of the highly successful Dickerson 35. Built primarily in the late 1960s and throughout the 1970s in Trappe, Maryland, the 40 was designed for the sailor who prioritized a comfortable motion and aesthetic grace over modern racing metrics. Most examples of the Dickerson 40 were constructed using the builder's signature strip-planked mahogany on oak frame method, though a few transitioned into the early experimentation with fiberglass. As a classic ketch-rigged cruiser, it was engineered specifically to handle the chop of the Chesapeake Bay while maintaining the stamina for blue-water passages, a capability proven by its slightly larger sibling, the Dickerson 41, which famously completed a circumnavigation.

Sailing Performance & Handling

The Dickerson 40 is a heavy-displacement cruiser that prioritizes "sea-kindliness" above all else. With a displacement-to-length ratio that leans toward the higher end of the cruising spectrum, the boat offers a stable, predictable motion in a seaway. The ketch rig is the defining characteristic of its handling profile; by splitting the sail area between two masts, the Dickerson 40 allows for a multitude of sail combinations, making it exceptionally easy to balance the helm.

Under sail, the boat is not a light-air flyer, but it finds its stride in 15 to 20 knots of breeze. Owners often report that the boat tracks exceptionally well thanks to its long keel, requiring minimal input from the helm or autopilot once the sails are trimmed. The "jib and jigger" configuration—sailing under just the forestaysail and the mizzen—is a favored tactic for heavy weather, allowing the vessel to remain upright and controllable when smaller sloops are struggling. While the wetted surface area of the long keel and the drag of the ketch rig limit upwind pointing ability compared to modern fin-keel designs, the Dickerson 40 excels on a reach, where its momentum and waterline length allow it to maintain a steady 6 to 7 knots.

Interior Comfort & Variations

The interior of the Dickerson 40 is a masterclass in traditional maritime joinery. Because these boats were largely semi-custom, variations exist, but most feature a classic "tri-cabin" or "center cockpit" philosophy that maximizes privacy for two couples. The use of warm mahogany throughout creates an inviting, library-like atmosphere that is often cited as a primary draw for traditionalists.

The main salon typically offers 6'3" of headroom, featuring a U-shaped dinette and a linear galley that is well-braced for cooking at sea. A significant sibling to the standard 40 is the Dickerson 41, which utilized a very similar hull form but offered an extended transom and often a more voluminous aft cabin. In the 40, the aft quarters are usually accessed via a walk-through or a separate companionway, providing a secluded master suite. Storage is abundant, reflecting the builder's intent for the boat to serve as a primary residence for long-term cruisers. The transition from the wood-hulled 40 to the George Hazen-designed fiberglass 37 marked a shift toward more open, modern layouts, but the 40 remains the preferred choice for those who value the "organic" feel and acoustic insulation of a wooden hull.

The Dickerson 40 enjoys a storied reputation within the cruising community, often highlighted in regional maritime literature. The model’s heritage is meticulously documented by the Dickerson Owners Association, which serves as the primary repository for the model's history, including original design sketches and builder notes. The boat is also a frequent subject of "classic plastic" and "vintage wood" retrospectives in publications like SpinSheet, which focuses on the Chesapeake sailing culture where the Dickerson 40 remains a local icon.

Known Issues & Buyer’s Checklist

Buying a Dickerson 40 today requires a specialized survey, particularly because many were built using strip-planked mahogany. Potential buyers should prioritize the following areas:

  1. Fastener Fatigue: On wooden models, the bronze or galvanized fasteners that secure the mahogany planks to the oak frames can degrade over 50 years. "Re-fastening" is a common and necessary maintenance milestone for these hulls.
  2. Chainplate Corrosion: The chainplates on the 40 are often buried behind cabinetry. Periodic inspection for weeping or rust streaks is vital, as these are high-load components for the ketch rig.
  3. Deck Core Integrity: On later models with fiberglass-coated decks or early all-fiberglass builds, moisture intrusion around the stanchion bases and the mizzen mast step can lead to soft spots in the balsa core.
  4. Mizzen Mast Step: Unlike the mainmast, which is often keel-stepped, the mizzen mast on some Dickerson 40s is deck-stepped. The compression post and surrounding structure should be checked for signs of sagging or rot.

Community & Resources

The primary resource for this model is the Dickerson Owners Association. This organization is exceptionally active, hosting an annual rendezvous in Maryland and maintaining a technical archive that includes original Dickerson Boatbuilders brochures and construction specifications. The association is an essential touchpoint for sourcing specific hardware or consulting with long-time owners on the nuances of wooden hull maintenance.

The Verdict

The Dickerson 40 is a "gentleman’s yacht" that offers a level of soul and craftsmanship rarely found in modern production boats. It is an ideal choice for the coastal cruiser who values the journey as much as the destination.

Pros:

  • Exceptional Motion: The heavy displacement and long keel provide a comfortable, stable ride in rough water.
  • Aesthetic Appeal: Traditional lines and mahogany interiors make it one of the most beautiful boats in any harbor.
  • Versatile Rig: The ketch sail plan offers numerous options for heavy-weather handling and easy short-handed sailing.

Cons:

  • High Maintenance: Wooden hulls require a significantly higher commitment of time and money for annual upkeep compared to fiberglass.
  • Light Air Performance: The heavy weight and high wetted surface make for sluggish performance in light winds.
  • Tight Quarters: Despite its 40-foot length, the narrow beam and traditional layout may feel cramped compared to modern wide-beam cruisers.

Measurements

Construction & Hull

Construction Material
Wood (Strip Planked)
Hull Type
Monohull Sailboat
Keel Type
Full
Rudder
1x Attached
Ballast
5600 lbs
Displacement
18000 lbs
Water Capacity
60 gal
Fuel Capacity
40 gal

Dimensions

Length Overall (LOA)
40 ft
Waterline Length (LWL)
30.42 ft
Beam
12 ft
Draft
4.5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Ketch
P (Main Luff)
38 ft
E (Main Foot)
16 ft
I (Foretriangle Height)
41 ft
J (Foretriangle Base)
12.7 ft
Forestay Length (est)
42.92 ft
Sail Area
600 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
13.97
Ballast / Displacement Ratio
31.11
Displacement / Length Ratio (D/L) Ratio
285.46
Comfort Ratio
30.53
Capsize Screening Formula
1.83
Hull Speed
7.39 kn