Drascombe Longboat Sailboat Review, Specs, and Listings

John Watkinson·1971·~600 hulls·Honner Marine Ltd.
Approximate drawing

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Hull Type
Monohull · centerboard
Rig
Ketch
LOA
21.75' · 6.63 m
Disp.
1,100 lbs · 499 kg
First year
1971

The Drascombe Longboat began life in 1970 as a stretched version of the Lugger, conceived first as a training craft for sailing schools and Sea Scouts rather than as a private cruiser. John L. Watkinson drew her as a small fibreglass sailing dinghy on a centreboard hull. Several hundred were built.

Measurements

Dimensions 01

Length Overall
21.75 ft
Length on deck
Waterline Length
17.5 ft
Beam
6.58 ft
Draft
4.16 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Centerboard
Rudder
1× —
Ballast
(Lead)
Displacement
1,100 lbs
Water Capacity
Fuel Capacity

Rig & sails 03

Rigging Type
Ketch
Mainsail luff
Mainsail foot
Foretriangle height
Foretriangle base
Forestay Length (estimated)
Sail Area
169 sqft

Calculations 04

Sail Area to Displacement Ratio
25.37
Ballast to Displacement Ratio
Displacement to Length Ratio
91.63
Comfort Ratio
7.36
Capsize Screening Ratio
2.55
Hull Speed
5.61 kn

Design and Construction

The hull is solid fibreglass. At 21.75 feet overall with a 17.5-foot waterline and a beam of 6.58 feet, she is a narrow, light craft of about 1,100 lbs displacement and a length-to-beam ratio of 3.31. The centreplate itself is 100 lbs and the rudder around 28 lbs, so the movable ballast and steering gear are a meaningful share of the boat's mass. With the plate raised her draft runs from roughly 0.98 to 1.28 feet depending on load, letting her dry out or sail close to a beach. The immersion rate of about 412 lbs per inch shows how little she sits in the water.

Rig and Handling

She carries a yawl rig on a centreboard keel, the board a pivoting lifting keel that can be raised for shoal water. The modest sail plan keeps her within the European Union's Class C certification when fewer than nine are aboard. As a stretched Lugger, her handling inherits that simple, beachable dinghy temperament scaled up for instructional use.

Accommodations

The Longboat is a small sailing dinghy with no enclosed berths in the record; her genesis as a schools and Scout training boat argues for open, adaptable space rather than cruising accommodation. A buyer expecting a cabin cruiser would be reading the wrong design.

Known Issues

The 100-lb plate and 28-lb rudder are heavy moving components in a 1,100-lb boat, and their pivots and trunk see repeated load every launch, retrieval, or beaching. The shallow-draft, beachable brief means those fittings are exposed to sand and grounding.

The Verdict

The Drascombe Longboat is a purposeful, shoal-draft trainer turned recreational day and trailer sailor, easy to keep afloat.

Pros

  • Stretched Lugger hull gives more room than the shorter boat
  • Solid fibreglass hull needs no plank upkeep
  • Centreplate and rudder lift for 1-foot draft and beachability

Cons

  • Small sailing dinghy, not a cabin cruiser
  • Heavy moving plate and rudder mean pivot wear is a routine concern

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