Merlin-Rocket Information, Review, Specs

Make
Model
Number Built
Production Year(s)
1946 - ??

The Merlin-Rocket is a distinguished and highly competitive "development class" racing dinghy, primarily sailed in the United Kingdom, celebrated for its long history of innovation and thrilling performance. With a heritage stretching back to 1946, this monohull sailboat was conceived for speed and tactical racing, embodying the spirit of its era's vibrant dinghy scene. Built by renowned craftsmen like Jack Chippendale of Chippendale Boats, the Merlin-Rocket represents a pinnacle of small boat design and construction, particularly during the "golden era" of UK domestic dinghy sailing.

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The class's unique nature as a development class means that while certain parameters are fixed, designers are encouraged to innovate within the rules, leading to a diverse fleet and continuous evolution of performance. Jack Chippendale, a master craftsman recognized with an MBE for his contributions, was instrumental in bringing many of these high-performance designs to life, cementing the Merlin-Rocket's reputation for exceptional quality and race-winning capabilities.

History and Design

The Merlin-Rocket's story began in 1946, emerging from a desire for a fast, half-deck 14-foot dinghy for racing. The class itself was a merger in 1951 of two distinct designs: the "Merlin" and the "Rocket," bringing together different approaches to achieve a single, formidable racing machine. The design philosophy behind the Merlin-Rocket emphasizes the pursuit of performance, aiming to create a boat that is both quick and engaging to sail. This commitment to speed and handling aligned perfectly with the manufacturing ethos of Chippendale Boats, established by Jack Chippendale in the 1950s. Chippendale's yard in Fareham, UK, became synonymous with precision wooden construction and a relentless focus on competitive excellence, often collaborating with leading naval architects like Ian Proctor.

Over its extensive production run, the Merlin-Rocket has seen numerous design variations, a testament to its "development class" status. Designers continuously pushed boundaries, leading to different marks and iterations aimed at enhancing speed and handling characteristics within the class rules. While the overall shape of later models like the Winder Mark 2 might resemble earlier versions, minor tweaks and material changes, such as the introduction of glass decks and internal structures in some composite boats, mark the evolution of the class. This constant refinement ensured the Merlin-Rocket remained at the forefront of dinghy racing, attracting a wide range of sailors due to its tolerance for various crew weights.

Sailing Performance and Handling

The Merlin-Rocket, with its slender 14-foot length overall and a waterline length of 13.5 feet, is designed for exhilarating sailing performance. Its hull speed is estimated at 4.92 knots, a figure that belies its dynamic on-water capabilities. As a lightweight racing dinghy with a reported sail area of 105 square feet, the Merlin-Rocket is known for its quick acceleration and responsiveness. The boat's fractional sloop rig further contributes to its agility and ease of tuning for optimal performance in various conditions.

Anecdotal evidence from owners and racers consistently highlights the Merlin-Rocket's spirited handling. It is often described as a lively boat that rewards skilled sailors with impressive speed and a balanced feel. While competitive racing dinghies can sometimes be perceived as "tippy," the Merlin-Rocket offers a balance that allows for a wide range of crew weights, making it accessible to various sailing partnerships, including husband and wife teams. Its design, which allows for custom rudder sizes, also contributes to its responsive steering. The class maintains its reputation for being a formidable presence on the racecourse, capable of exceptional upwind performance.

Accommodations and Layout

Given its identity as a 14-foot racing dinghy, the Merlin-Rocket's "accommodations" are focused entirely on efficient cockpit design and sailing functionality rather than interior living spaces. There is no maximum headroom or traditional cabin to speak of. Instead, the layout prioritizes an open cockpit that allows for agile crew movement and optimal control during racing.

The cockpit is typically laid out for two crew members, with arrangements for efficient handling of sails and controls. While specific interior finishes may vary depending on the builder and the era, the emphasis is on durable, lightweight materials, often traditional wood construction for classic boats, or fiberglass and composites for newer iterations. Storage is minimal, usually limited to small compartments for essential safety gear and personal items. The open nature of the design ensures excellent ventilation, which is crucial for active racing. Reviews and tours of Merlin-Rockets showcase a functional, uncluttered deck and cockpit designed purely for the pursuit of speed and competitive sailing.

Owner's Perspectives

Owners of Merlin-Rockets frequently praise the dinghy for its beautiful design and its ability to accommodate a wide range of crew weights, making it a versatile choice for competitive club and open circuit racing. The class is celebrated for fostering a strong community, where enthusiasts often discuss the nuances of design, tuning, and racing strategies. Many owners express a deep affection for the boat's handling characteristics, noting its good upwind performance and lively feel.

However, as with any development class, discussions among owners often touch upon the continuous evolution of designs and the potential cost associated with staying at the cutting edge of performance. Common areas of owner discussion or potential maintenance, particularly with older wooden boats, can include ensuring the integrity of the clinker-built hull (though some designs experimented with smoother hulls), and optimizing rigging components like pole uphaul connections for peak performance. Despite these considerations, the enduring appeal of the Merlin-Rocket lies in its engaging sailing experience and its rich competitive history, with owners consistently valuing its solid construction and exciting performance on the water.

Measurements

Construction & Hull

Construction Material
Fiberglass/Wood Composite
Hull Type
Monohull Sailboat
Keel Type
Centerboard
Rudder
1x —
Ballast
-
Displacement
210 lbs
Water Capacity
-
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
Fractional Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Main Sail Area
-
Foretriangle Sail Area
-
Total Sail Area (Reported)
105 sqft
Total Sail Area (Calc)
-

Dimensions

LOA
14 ft
LWL
13.5 ft
Beam
7.16 ft
Draft
4.5 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
4.92 kn
Pounds per Inch Immersion
345.38