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







