Moody 33 Mk I Sailboats for Sale

Layouts on the Used Market

The Mk I configuration that appears most on the brokerage market is the three-cabin arrangement that made the design famous: a forward cabin, a central saloon with a full-width heads compartment to port, and the two-berth aft cabin beneath the cockpit. That full-width heads — wide enough for a proper basin and WC on opposite sides of the boat — was a distinctive Mk I feature and one that prospective buyers often cite as a reason to seek out the Mk I over the later Mk II, which traded the spacious heads for a galley-aft arrangement and a smaller heads compartment. The trade-off is real: Mk II boats feel more practical for extended passages, while the Mk I's layout works especially well for families or couples who value privacy and a genuinely usable bathroom. Ex-charter examples do surface on the market, and these tend to show heavier interior wear, so the provenance of any particular boat is worth establishing early.

The aft cabin hatch is one of the simplest external identifiers of a Mk I: it sits centrally on the coachroof, whereas Mk II boats shift it to port. Both marks share the same cockpit access to the aft cabin, which some buyers find inconvenient in cold or wet weather but which others accept as the cost of having a genuinely separated double aft cabin in a 33-footer.

Equipment and Common Upgrades

Autopilots and chartplotters are fitted to most examples on the market — this is almost universal on any Moody 33 Mk I that has been actively cruised in recent decades, and their presence should be expected rather than treated as a bonus. Beyond these essentials, the picture is one of incremental owner investment over many years of ownership.

Solar panels are widely seen, often paired with a bimini that shades the centre cockpit and makes passage-making considerably more comfortable. Dinghy davits and a swim platform are common on boats that have been used for Mediterranean or coastal cruising, reflecting the typical itinerary of owners who anchor rather than marina-hop. Radar is frequently fitted, and short-handed sailing setups — self-tacking jibs, furling gear, clutches, and rope-to-cockpit arrangements — appear on many boats whose owners have sailed them without crew.

Owner upgrades that appear somewhat less universally but are still commonly encountered include wind generators (often paired with solar for a complete off-grid energy system), inverters for domestic comfort, AIS transponders, and cockpit showers. Furling mains are a meaningful upgrade that some owners have added, simplifying sail handling considerably on a boat whose original slab-reefing system requires going forward. Downwind sails — gennakers, asymmetric spinnakers, and traditional symmetric kites — occasionally appear on boats whose owners have used them for bluewater passages or racing, though this is less typical. A freezer is an occasional find, usually on boats that have been fitted out for extended live-aboard use. Life rafts are sometimes included in the sale.

What to Inspect

The hull itself is GRP and generally holds up well, but boats of this generation warrant careful osmotic blister assessment. A professional survey with moisture readings across the hull is essential — while the laminate can be sound after five decades, blistering is a known issue across 1970s production GRP, and remediation is both costly and disruptive. Do not take a vendor's word on osmotic history; look for evidence of a blister repair programme and ask whether moisture readings were taken at the time.

The engine installation deserves close attention. Most Moody 33s still carry their original 35 bhp four-cylinder Thorneycroft engine, which has a reputation for longevity when properly maintained but is now extremely old. The engine sits beneath the cockpit sole with access via a large lifting panel, and a secondary section can be removed for major work. Inspect the engine mounts, the raw-water cooling circuit, the heat exchanger, and the exhaust system for corrosion and deterioration. An engine that runs but has not been serviced to a documented schedule should be priced accordingly. Check that the access panels lift and seal correctly — a leaking cockpit-sole hatch can direct water into the engine bay.

The centre-cockpit drainage system is worth tracing carefully. The cockpit sits low relative to many designs and the drain hoses and seacocks must be in good condition — confirm the seacocks operate freely and that the hoses are not aged or collapsing. Stern gear and the skeg-mounted rudder should be checked for play and bearing condition, which on a boat of this age may have seen little or no attention. The capsize screening value of 2.10 places the design at the boundary of offshore acceptability under some rating rules, a factor to weigh if bluewater passages are planned.

Standing rigging on any example this old should be considered beyond its service life unless recently replaced. Check for wire fatigue at swage fittings, chainplate condition (particularly where they pass through or are glassed to the deck), and the condition of the mast step. Running rigging condition varies enormously with owner investment; budget for renewal if it has not been done recently.

Below, look at deck hardware bedding for water ingress, particularly around stanchion bases, chainplates, and any deck fittings added during upgrades. Teak decks, where fitted, should be checked for caulking condition and the integrity of the fastening screws — aging teak decks can become a significant source of leaks when the caulk hardens and lifts.

Availability and Buyer's Takeaway

The Moody 33 Mk I circulates most actively in the United Kingdom and Ireland, where the type originated and where owners have historically kept and maintained them. A meaningful secondary market exists across the Mediterranean — Greece and Croatia in particular — reflecting the boat's popularity among British sailors who have moved their cruising ground south. Examples also appear in the United States from time to time, and occasional listings surface in Southeast Asia.

The boat rewards patient buyers who take the survey seriously and resist the temptation to shortcut due diligence on the basis of a tidy appearance. The best examples have had sustained owner investment; the worst have deferred maintenance across multiple systems simultaneously. There is a wide range in condition, and condition matters far more than the calendar year of a Mk I hull.

Checklist for prospective buyers:

• Commission a full out-of-water survey with hull moisture readings
• Verify osmotic history and inspect for active blistering
• Run and load-test the Thorneycroft engine; check service records
• Inspect all seacocks, cockpit drains, and stern gear for condition and freedom of operation
• Examine chainplates, standing rigging, and mast step for corrosion and fatigue
• Check deck hardware bedding for water ingress, especially around upgrades
• Confirm access panels to the engine bay seal correctly
• Establish provenance — private ownership versus charter history affects interior wear significantly
• Assess cockpit-to-aft-cabin access against your intended cruising use and crew