The Joemarin 29 is a quintessential representative of Finnish yacht design from the late 1970s, a period when Scandinavia was cementing its reputation for producing rugged, sea-kindly cruisers. Designed by the legendary naval architect Hans Groop—best known for the iconic H-Boat—the Joemarin 29 was built by Joemarin OY in Joensuu. It was conceived as a robust family cruiser capable of handling the demanding, short-chop conditions of the Baltic Sea while offering a level of interior volume and wood finish that punched significantly above its weight class.
Joemarin 29 Information, Review, Specs

- Make
- Joemarin
- Model
- 29
- Builder
- Joemarin OY
- Designer
- Britton Chance
- Number Built
- Production Year(s)
- 1974 - ??
The boat shares a distinct design language with its siblings, notably the smaller Joemarin 17 and the larger Joemarin 34 (which was also produced as the Lohi 34). While the 29-foot model never achieved the massive production numbers of Groop's H-Boat, it remains a respected "pocket cruiser" in Northern Europe, valued for its heavy-weather capabilities and the high-quality craftsmanship associated with Joensuu-based builders of that era.
Sailing Performance & Handling
The Joemarin 29 is characterized by its predictable, stiff, and forgiving nature. Hans Groop’s influence is evident in the hull’s balanced lines; with a traditional fin keel and a skeg-hung rudder, the boat tracks exceptionally well even when the wind picks up. The masthead sloop rig is relatively conservative, designed more for stability and ease of handling than for light-air racing performance.
In terms of feel, owners often describe the boat as "shorthanded-friendly." The ballast-to-displacement ratio is substantial enough to ensure that the boat remains upright and manageable in a blow, reducing the need for early reefing compared to modern, lighter-displacement cruisers. According to historical reviews in Finnish nautical publications like Venelehti, the Joemarin 29 handles the confused seas of the Baltic with a "heavy boat" feel, providing a sense of security that is rare in a sub-30-foot vessel. However, because of its relatively high displacement and modest sail area, it can feel underpowered in light airs (under 8 knots), often requiring the iron sail to maintain progress.
Interior Comfort & Variations
For a boat designed in the 1970s, the Joemarin 29 offers a surprisingly modern and ergonomic interior layout. The use of warm Finnish teak throughout the cabin creates a traditional maritime atmosphere. The standard configuration includes a forward V-berth, a central salon with two settee berths, and a compact galley located near the companionway to maximize ventilation.
There is a significant sibling variant known as the Joemarin 29 MS (Motorsailer). While built on the same hull, the MS version features a modified deck mold with a semi-enclosed pilothouse or a more substantial doghouse, catering to sailors in colder climates who prioritize protection from the elements over pure sailing aesthetics. This variant often includes an internal steering station and a larger engine, typically the Volvo Penta MD series. The transition between the standard cruiser and the MS version allowed Joemarin to capture a wider market of Baltic sailors who required a "year-round" vessel. Headroom is adequate for the era, though sailors over six feet may find the forward areas slightly restrictive.
Known Issues & Buyer’s Checklist
Prospective buyers of a Joemarin 29 should focus on the specific aging characteristics of 1970s-era Finnish GRP (Glass Reinforced Plastic) construction:
- Engine Obsolescence: Many original units were fitted with Volvo Penta MD7A or MD11C diesel engines. While these are "bulletproof" in design, sourcing genuine parts is increasingly difficult, and many Joemarin 29s found on the market today are prime candidates for repowering.
- Osmotic Blistering: Like many boats from the late 70s, the hull should be inspected for signs of osmosis. While Joemarin hulls were generally well-built, the age of the laminate makes a moisture meter test essential during a survey.
- Deck Core Integrity: The decks often utilized a balsa or plywood core for stiffness. Buyers should check for "soft spots" around high-load areas such as the mast step and stanchion bases, where water ingress through old sealant can rot the core.
- Chainplates and Rigging: Given the boat’s age, the stainless steel chainplates should be inspected for crevice corrosion, especially where they pass through the deck.
Community & Resources
The Joemarin 29 enjoys a niche but dedicated following, primarily centered in Finland, Sweden, and Germany. While the builder Joemarin OY is no longer in operation, technical support and community knowledge are often found through the broader Finnish sailing community and associations dedicated to Hans Groop designs. Information can occasionally be gleaned from the Hans Groop designer archives, which celebrate the heritage of his various cruising and racing designs.
The Verdict
The Joemarin 29 is a stout, well-proportioned cruiser that offers a high degree of safety and "big boat" feel for its size. It is an ideal choice for a couple or a small family looking for a classic aesthetic and a vessel capable of coastal hopping in varied weather conditions.
Pros:
- Exceptional Build Quality: Built during a period of high-quality Finnish craftsmanship with extensive use of interior teak.
- Sea-Kindliness: Hans Groop’s hull design ensures a stable, dry, and predictable ride in heavy seas.
- Versatility: The existence of the MS (Motorsailer) variant provides options for sailors in harsher climates.
Cons:
- Light Air Performance: The heavy displacement makes it sluggish in light winds.
- Aging Systems: Original engines and wiring often require significant investment to bring up to modern standards.
- Limited Availability: Rare outside of Northern Europe, making it difficult to find in North American or Mediterranean markets.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Skeg-Hung
- Ballast
- 2698 lbs
- Displacement
- 8508 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 28.74 ft
- Waterline Length (LWL)
- 25.66 ft
- Beam
- 9.32 ft
- Draft
- 5.45 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 349 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 13.4
- Ballast / Displacement Ratio
- 31.71
- Displacement / Length Ratio (D/L) Ratio
- 224.81
- Comfort Ratio
- 25.29
- Capsize Screening Formula
- 1.83
- Hull Speed
- 6.79 kn