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Coronado 30

1969–1974 · designed by Robert Finch and Frank Butler (Finch & Butler) · built by Coronado Yachts, Costa Mesa, California (a Whittaker Corporation sister brand to Columbia Yachts)

The Coronado 30 was a mass-production family cruiser aimed at affordable coastal and weekend sailing on the West Coast in the early 1970s, built by Coronado Yachts alongside its better-known Columbia-brand siblings under the Whittaker umbrella. It follows the moderate-displacement, fin-keel layout typical of early-70s production 30-footers, prioritizing interior volume and a low price point over performance or offshore pedigree. Its reputation today is as an inexpensive, unremarkable entry into classic-plastic cruising rather than a sought-after design.

This is a general read on the Coronado 30 class — informed background, not a verdict on any individual boat. Condition, refit history, and how a particular hull was sailed and stored matter far more than class reputation. Use it to know what to look for; for a read on a specific listing, run a free FairKeel report on that boat.

At a glance

Hull form: Fin Keel
Ballast type: Bolt On Lead
Rudder: Spade
Hull construction: Fiberglass
Production: 1969–1974
Built in: USA

What the Coronado 30 is known for

Simple, accessible systems layout typical of early production fiberglass cruisers, which keeps maintenance and troubleshooting straightforward.
Reasonably roomy interior volume for a 30-foot hull of this era, aimed at family use.
Proven solid-fiberglass hull construction common to Whittaker-era Columbia/Coronado boats, generally durable when not neglected.
Low purchase price today makes it an inexpensive entry point into classic-plastic coastal cruising.

Known trade-offs

Smaller production run and lower name recognition than sister Columbia models means thinner parts support, fewer archived class records, and little to no active owners' association.
Hulls are now 50+ years old, so coring, wiring, tankage, rigging, and original engines are likely near or past end of service life regardless of cosmetic condition.
Not designed for offshore work; buyers hoping to stretch it beyond coastal/weekend use will be disappointed.
Documentation on exact builder specs (mast step, keel-bolt pattern, tank materials) is thin and inconsistent across surviving listings, making hull-specific verification by survey essential rather than assumed from class norms.

Age-related quirks to expect

Gelcoat crazing and blistering/osmosis typical of early-1970s production glasswork severity: Medium affects: 1969-1974

Many surviving hulls still carry original or early-replacement gas auxiliary engines (era-typical Atomic 4 or similar) now well past service life severity: High affects: 1969-1974

Deck coring, chainplate attachment points, and bulkhead tabbing now 50+ years old, with moisture intrusion common on unrestored hulls severity: High affects: 1969-1974

Standing rigging almost certainly original or long overdue for replacement given hull age severity: High affects: 1969-1974

Systems to check before you buy

Deck core and hull-to-deck joint priority: offshore, coastal, liveaboard

Era-typical balsa or plywood coring and a mechanically fastened hull-to-deck joint are the most likely sources of hidden water damage on a 50+ year old hull; check deck stiffness underfoot and joint integrity closely.

Auxiliary engine and repower status priority: motor, coastal, offshore

Many hulls of this vintage shipped with a small gas auxiliary; confirm whether it survives original or has been repowered, since an original-era engine at this age is a near-term replacement cost regardless of current running condition.

Standing rigging and chainplates priority: offshore, coastal

Rig age is the single biggest unknown on an unrestored early-70s hull; chainplates and their bulkhead/structural attachment deserve as much scrutiny as the wire itself.

Keel attachment / keel joint priority: offshore, liveaboard

Whether ballast is externally bolted or encapsulated is not reliably documented for this class; a surveyor should confirm keel-joint integrity and any weeping or stress cracking at the hull-keel seam rather than assuming a configuration.

Tankage and wiring priority: liveaboard, coastal, weekending

Original fuel/water tankage and wiring from this era are commonly undersized or near end-of-life by survey time; budget for inspection and likely replacement rather than assuming either is original-equipment-adequate.

How it fits your plans

Coastal: A reasonable day-sailing and coastal weekend boat for the era and size, but offers nothing beyond basic accommodations.
Liveaboard: Cramped by modern standards for full-time living, with limited tankage and stowage typical of early-70s 30-footers.
Motor: Auxiliary power was modest from the factory; confirm engine status before relying on it for any serious motoring.
Offshore: Not designed or built with offshore passages in mind; this is a coastal production cruiser, not a bluewater design.
Weekending: Well suited to its original purpose: simple, affordable weekend and coastal family sailing.

This guide is the class. A report is that hull. Paste the listing you're looking at and FairKeel grades every claim in it against what's known about the Coronado 30 — where the evidence is thin, the red flags worth a second look, the costs likely to land in your first season, and whether the boat suits the plans you describe in a few short questions.

It won't read the photos or put a number on the boat — that's the $249 Deep-Dive, and for the real answer, a surveyor. It will tell you when a Deep-Dive isn't worth buying. Free, no account, usually a minute or two.

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