Cracksman 20 Information, Review, Specs

Make
Cracksman
Model
20
Builder
Newbridge Boats
Designer
Michael Henderson
Number Built
Production Year(s)
1963 - ??

The Cracksman 20 stands as a foundational chapter in the history of British GRP boatbuilding. Designed by Michael Henderson in the early 1970s and produced by Newbridge Boats, this 20-foot pocket cruiser was engineered during an era when the transition from timber to fiberglass allowed for internal volumes previously unthinkable in such a short waterline. While the Newbridge name later became synonymous with the Bill Dixon-designed Venturer and the Robert Tucker-penned Navigator, the Cracksman 20 established the builder's reputation for creating "stout little ships" that could withstand the demanding tidal waters of the English Channel.

Unlike many of its contemporaries that prioritized light-wind performance, the Cracksman 20 was built with a relatively heavy displacement for its size, aimed squarely at the family sailor who valued stability and safety over technical racing prowess. The boat typically features a bilge keel configuration, allowing it to dry out upright—a critical feature for the budget-conscious sailor utilizing affordable drying moorings across the UK.

Sailing Performance & Handling

The Cracksman 20 is characterized by a "big boat" feel that belies its 20-foot length. With a displacement that leans toward the heavier side of the pocket-cruising spectrum, the hull provides a motion that is more predictable and less "twitchy" than modern lightweight daysailers. According to technical documentation maintained by the Newbridge and Venturer Owners Association, the boat was designed to be easily handled by a single person or a small family, with a masthead sloop rig that provides a conservative sail area.

In terms of handling, the Michael Henderson design emphasizes tracking and stability. The bilge keels, while slightly increasing drag and reducing "point" compared to a deep fin keel, are remarkably effective in coastal chop, providing a steady platform. Owners often report that while the boat is not a "greyhound" in light airs, it carries its momentum well once the breeze reaches Force 3 or 4. The rudder is transom-hung, offering direct feedback to the helmsman and making maintenance relatively straightforward compared to internal spade rudders.

Interior Comfort & Variations

For a vessel of just 20 feet, the Cracksman 20 offers an interior layout that successfully manages to fit the essentials of "weekending." The cabin typically provides four berths: a V-berth in the forepeak and two generous quarter berths extending aft under the cockpit seats. Because Henderson utilized a relatively high freeboard and a wide beam for the era, the cabin feels less claustrophobic than many of its 1970s rivals.

The galley is usually a simple affair, consisting of a slide-out or fixed two-burner stove and a small sink, located near the companionway for ventilation. Headroom is limited—typical for this size—but the "pop-top" or raised coachroof design used in some iterations helps alleviate the cramped feeling. While there are no major production variations in terms of hull length, the interior joinery often varies significantly between hulls, as many were sold as "home-completion" kits or have been heavily customized by owners over the last five decades.

Known Issues & Buyer’s Checklist

Prospective buyers should approach a Cracksman 20 with the understanding that these vessels are now over 50 years old. While the hull layups were historically robust, several areas require specific scrutiny:

  1. Osmosis: Like many early GRP boats from the 1970s, the Cracksman 20 is susceptible to osmotic blistering. While rarely structural in these thick hulls, it is a common point for price negotiation.
  2. Deck Core Integrity: Check for "spongy" sections on the side decks and coachroof. Newbridge used balsa or plywood coring in certain areas, and decades of hardware mounting can lead to water ingress and subsequent delamination.
  3. Keel Bolts: On bilge-keel versions, the internal reinforcement where the keels meet the hull should be inspected for "smile" cracks or signs of movement, which may indicate that the keel bolts require tightening or replacement.
  4. Rigging Points: The chainplates and the mast step area should be examined for stress cracks. Given the age of these boats, unless the standing rigging has been replaced in the last 10 years, it should be considered "end of life."

Community & Resources

The primary hub for technical data and historical context for this model is the Newbridge and Venturer Owners Association. This organization maintains an archive of original brochures and technical specifications that are essential for any restoration project. They remain the most authoritative source for verifying whether a specific hull was a factory-finished boat or a kit-built variant.

The Verdict

The Cracksman 20 is an honest, no-frills cruiser that offers a low-cost entry point into the world of coastal sailing. It is best suited for those who appreciate traditional aesthetics and require a boat that can "take the ground" in tidal estuaries.

Pros:

  • Exceptional stability and "heavy-weather" feel for a 20-footer.
  • Bilge keels allow for affordable drying moorings and shallow-water exploration.
  • Active owner community providing deep technical support.
  • Simple, robust systems that are easy for an amateur to maintain.

Cons:

  • Sluggish performance in light winds.
  • Interior headroom is restricted for taller sailors.
  • Many examples on the market require significant cosmetic or structural updating due to age.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Catamaran Sailboat
Keel Type
Centerboard
Ballast
-
Displacement
1151 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
20 ft
Waterline Length (LWL)
16.01 ft
Beam
8.01 ft
Draft
2.76 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
200 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
29.13
Ballast / Displacement Ratio
Displacement / Length Ratio (D/L) Ratio
125.21
Comfort Ratio
6.47
Capsize Screening Formula
3.06
Hull Speed
5.36 kn