Morgan 42-1 Sailboat Review, Specs, and Listings

Charles Morgan·1968·Morgan Yachts
Approximate drawing

Hover a measurement to read its value

Hull Type
Monohull · fin
Rig
Masthead Sloop
LOA
42' · 12.8 m
Disp.
19,000 lbs · 8,618 kg
First year
1968

The Morgan 421 is a 42foot, mastheadrigged cruising sloop designed by Charles Morgan and built by Morgan Yachts in the late 1960s. With a solidfiberglass hull and fin keel, it represents the American heavy cruiser of its day rather than the later Brewer or Nelson/Marek designs. It also predates Charley Morgan’s 1972 departure from the company.

Measurements

Dimensions 01

Length Overall
42 ft
Length on deck
—
Waterline Length
30.5 ft
Beam
11.5 ft
Draft
5.5 ft
Maximum Headroom
—
Air Draft
—

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Fin
Rudder
1× Skeg-Hung
Ballast
— (Lead)
Displacement
19,000 lbs
Water Capacity
—
Fuel Capacity
—

Rig & sails 03

Rigging Type
Masthead Sloop
Mainsail luff
43.5 ft
Mainsail foot
17.5 ft
Foretriangle height
49.5 ft
Foretriangle base
16.5 ft
Forestay Length (estimated)
52.18 ft
Sail Area
789 sqft

Calculations 04

Sail Area to Displacement Ratio
17.73
Ballast to Displacement Ratio
—
Displacement to Length Ratio
298.96
Comfort Ratio
33.44
Capsize Screening Ratio
1.72
Hull Speed
7.4 kn

Design and Construction

The Morgan 42-1 measures 42 feet overall, with a 30.5-foot waterline and an 11.5-foot beam. Its length-to-beam ratio of 3.65 describes a moderately narrow, seakindly hull form, while its displacement-length ratio of 299 places it firmly in the heavy-cruiser category. The boat displaces 19,000 pounds and carries lead ballast. Its length-to-beam ratio of 3.65 describes a moderately narrow, seakindly hull form.

The bottom has about 387 square feet of wetted surface. At its loaded waterline, the boat has an immersion rate of nearly 1,224 pounds per inch. Its theoretical hull speed is 7.4 knots, as expected for a displacement hull with this waterline length.

Rig and Handling

The Morgan 42-1 carries a masthead sloop rig. Period sail-plan data describes the standing and running gear in unusual detail. The main, jib, and spinnaker halyards are each 113 feet long and 1/2 inch in diameter, the jib and genoa sheets measure 42 feet at 0.55 inch, and the mainsheet is a 105-foot, 0.55-inch line.

With the ISO 8666 reference sail, the sail-area-to-displacement ratio is 17.7. A 135% genoa raises that figure to 20.9, a meaningful increase in light-air drive for a heavy hull.

Draft varies with load from 5.51 to 5.81 feet, shallow enough to make most marina entrances accessible. The capsize screening value is 1.73, and the Motion Comfort Ratio is 33.1. Those figures are consistent with a stable, offshore-capable cruiser rather than a twitchy racer.

Accommodations

No published accommodation plan is available for the model. However, the 42-foot hull, 30.5-foot waterline, 11.5-foot beam, and 19,000-pound displacement imply interior volume consistent with its heavy-cruiser classification.

Known Issues

Across its service history, the Morgan 42-1 shows no pattern of structural defects, systemic rig failures, or recurring construction faults unique to the model. However, no published defect history is available.

The Verdict

The Morgan 42-1 is a solid-fiberglass, fin-keel heavy cruiser from the late 1960s, designed by Charles Morgan and built by Morgan Yachts. Its numbers describe a stable, load-carrying offshore sloop with an accessible draft and a comfort-oriented motion profile. Heavy displacement limits outright speed to the theoretical 7.4 kn hull speed, but a 135% genoa gives the sail plan more light-air power.

Pros

  • Heavy-cruiser displacement-length ratio of 299, with lead ballast
  • Capsize screening value of 1.73 and Motion Comfort Ratio of 33.1
  • Load-dependent draft of 5.51–5.81 ft suits most marinas
  • A 135% genoa raises SA/D to 20.9 for better light-air performance

Cons

  • No published accommodation plan or defect history for the model
  • Heavy displacement limits outright speed to a theoretical hull speed of 7.4 kn

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