KingFisher 20 Sailboat Review, Specs, and Listings

R. A. G. Nierop·1962·Westfield Engineering
KingFisher 20 drawingBuilder drawing
Hull Type
Monohull · twin
Rig
Masthead Sloop
LOA
20.58' · 6.27 m
Disp.
2,600 lbs · 1,179 kg
First year
1962

The Kingfisher 20 is a small sailboat. Conceived by R.A.G. Nierop for Westfield Engineering’s Kingfisher range and first built in 1962, it sits at the compact end of the marque’s output, a 20.58foot monohull whose 18.5foot waterline and 6.92foot beam package a bilgekeeled, mastheadsloop configuration around a solid fibreglass hull. What distinguishes the design is not length but stance: a twinkeel arrangement and a 42% ballast ratio that, by one survey’s reckoning, exceeds that of 69% of all similar sailboat designs, a figure that speaks to a deliberately weighted little cruiser rather than a featherweight racer.

Measurements

Dimensions 01

Length Overall
20.58 ft
Length on deck
Waterline Length
18.5 ft
Beam
6.92 ft
Draft
2.33 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Twin
Rudder
1× —
Ballast
1,100 lbs (Iron)
Displacement
2,600 lbs
Water Capacity
10 gal
Fuel Capacity

Rig & sails 03

Rigging Type
Masthead Sloop
Mainsail luff
Mainsail foot
Foretriangle height
Foretriangle base
Forestay Length (estimated)
Sail Area
177 sqft

Calculations 04

Sail Area to Displacement Ratio
14.98
Ballast to Displacement Ratio
42.31
Displacement to Length Ratio
183.32
Comfort Ratio
15.96
Capsize Screening Ratio
2.01
Hull Speed
5.76 kn

Design and Construction

The hull of the Kingfisher 20 is made of fibreglass, and the keel is made of iron. As a bilge keel, the twin-keel form is a defining trait: a bilge keel is a twin keel, which allows the boat to be beached, a genuine utility for a 2,600-pound vessel whose 1,100 pounds of iron ballast sit low in a solid laminate. The earliest six boats, built from 1959, carried encapsulated keels and transom-hung rudders before later boats adopted cast iron keels and shaft-mounted rudders — but the production run referenced here begins in 1962 under Nierop’s continued design stewardship through 1978, after which the tooling and marketing passed to Moorstream Ltd. operating as Kingfisher Yachts. The construction is straightforward fiberglass-solid throughout hull and deck; there is no core to delaminate, and the 42.31% ballast-displacement ratio is the structural headline.

Rig and Handling

The Kingfisher 20 is built with a masthead rig carrying 177 square feet of sail area, and the 14.98 sail-area-displacement ratio places it firmly in the modest-powered camp suited to its 5.76-knot hull speed. The sheet estimates published for the class are uniform in diameter if not length: jib and genoa sheets run 6.3 m (20.6 feet) at 10 mm (3/8 inch), the mainsheet stretches to 15.7 m (51.5 feet) at the same 10 mm, and the spinnaker sheet measures 13.8 m (45.3 feet) at 10 mm. The shallow draft is the other handling key — the boat can enter even shallow marinas as the draft is just about 0.71 - 0.81 meter (2.33 - 2.63 ft) dependent on the load, and the twin-keel geometry lets an owner dry out upright on a shelving beach rather than requiring a cradle.

Accommodations

The recorded source material notes no interior arrangement, berth count, or fitting detail for the Kingfisher 20 beyond its 10-gallon water capacity and 2,600-pound displacement. What can be said is that the 20.58-foot length and 6.92-foot beam define a minimal coastal-cruiser envelope, and the 183.32 displacement-length ratio confirms a heavy, volume-limited hull for its size rather than a stretched racer. Without documented layout facts, the accommodation story is one of constrained simplicity inherent to the dimensions, not of any recorded feature.

Known Issues

No documented defects, flooding paths, or structural weaknesses appear in the source material for this model. The construction-era note that the first six boats differed in keel encapsulation and rudder hang points is a production-variant fact rather than a fault, and later cast-iron keels are recorded as a construction advantage rather than a liability. A buyer or owner should therefore treat the Kingfisher 20’s documented issue history as empty in the literature, with attention properly directed to routine aging of a 1960s solid-fibreglass hull.

Refits and Ownership

Ownership of the design spans two builders: Westfield Engineering under Nierop to 1978, then Moorstream Ltd. as Kingfisher Yachts into the early 1980s. The 10-gallon water tank and solid-deck construction mean refits center on rigging and systems rather than core repair. The uniform 3/8-inch sheet diameters make running rigging straightforward to source, and the beaching ability reduces haul-out dependence — a practical ownership virtue for a boat whose shallow draft already widens its marital horizon.

The Verdict

The Kingfisher 20 is a deliberately weighted, beachable pocket cruiser whose 42% ballast ratio and twin iron keels make it uncommonly stable for its 20-foot length. The solid fibreglass build avoids core concerns, and the masthead rig is simple to maintain. Its limits are those of its size: minimal accommodation and modest sail-area-driven performance.

Pros

  • Twin bilge keels allow beaching and upright drying
  • Ballast ratio higher than 69% of similar designs
  • Solid fibreglass hull and deck with no core to fail
  • Shallow load-dependent draft eases marina access

Cons

  • Documented interior accommodation is unrecorded
  • Modest 177 sq ft sail plan limits light-air pace
  • Early-production variant keels differ from later cast iron

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