LOHI 34
Specifications
Hull
| LOA | 34.16 ft |
| LWL | 28.67 ft |
| Beam | 10.33 ft |
| Draft | 4.58 ft |
| Displacement | 12,125 lb |
| Ballast | 6,172.8 lb |
| Hull speed1.34·√LWL | 7.2 kn |
About the LOHI 34
Also known as the JOEMARIN 34.
The Lohi 34 is a robust, heavy-displacement cruising sloop designed by Hans Groop and built by Joemarin in Finland, with production records indicating a single build year of 1978. With a displacement of 12125.0 lb and a ballast ratio exceeding 50%, this vessel represents a classic, stable offshore design from the late 1970s.
- Best for:
- This boat is ideally suited for serious coastal and offshore cruisers who prioritize stability and seakeeping over high-speed planing, making it a strong candidate for bluewater passages and single-handed sailing due to its manageable sail area and heavy hull.
- Bluewater capability:
- With a low capsize ratio of 1.8 and a high displacement-to-length ratio of 229.69, the Lohi 34 exhibits excellent inherent stability and motion comfort, making it highly capable for extended offshore passages.
- Comparables:
- Comparable vessels include the Hallberg-Rassy 34 and the Nauticat 34, as they share similar heavy displacement, fin-keel configurations, and a focus on safe, comfortable offshore performance typical of late-1970s European production.
Performance
ORC Performance Data(1 certificate)
Measured performance data from ORC (Offshore Racing Congress) certificates.
Polar Diagram
Boat speed (kn) vs. true wind angle. Source: ORC
Racing Ratings
Triple Number
ORC Measured
Sail Areas (ORC)
Speed Table (kn)
| TWA \ TWS | 6 | 8 | 10 | 12 | 14 | 16 | 20 | 24 |
|---|---|---|---|---|---|---|---|---|
| 52° | 4.5 | 5.4 | 6.0 | 6.4 | 6.6 | 6.8 | 6.8 | 6.8 |
| 60° | 4.9 | 5.7 | 6.2 | 6.6 | 6.8 | 7.0 | 7.0 | 7.1 |
| 75° | 5.0 | 5.9 | 6.4 | 6.8 | 7.0 | 7.2 | 7.4 | 7.5 |
| 90° | 5.1 | 6.0 | 6.6 | 7.0 | 7.2 | 7.4 | 7.6 | 7.8 |
| 110° | 5.0 | 6.0 | 6.7 | 7.1 | 7.4 | 7.6 | 8.0 | 8.5 |
| 120° | 4.8 | 5.9 | 6.6 | 7.0 | 7.4 | 7.6 | 8.2 | 8.8 |
| 135° | 4.4 | 5.4 | 6.3 | 6.8 | 7.1 | 7.4 | 8.0 | 8.7 |
| 150° | 3.7 | 4.7 | 5.6 | 6.3 | 6.8 | 7.1 | 7.7 | 8.3 |
| Beat VMG | 2.9 | 3.5 | 4.0 | 4.3 | 4.6 | 4.7 | 4.7 | 4.7 |
| Run VMG | 3.2 | 4.1 | 4.8 | 5.5 | 6.1 | 6.6 | 7.2 | 7.8 |
Pricing
We don't have market pricing data for the LOHI 34 yet. If you own one, help other buyers — what did you pay for it? Reports build a community price estimate over time.
Estimated Cost of Ownership
Based on 34.16ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
We don't have enough data on the LOHI 34yet to publish model-specific findings we'd stand behind — but here's a free general inspection checklist, built from our research into what actually goes wrong on boats of this kind.
Drawn from 7,029 documented issues across 2,391 models, ordered so the areas that most often turn up problems come first.
Own a LOHI 34? Reports from owners are what turn this into a model-specific checklist — and they're the reason the boats above it have one.
Similar Sailboats
Which engine powers your LOHI 34?
We haven't confirmed the engine for this model yet. If you own or know one, tell us — as owners report in, we build an accurate picture over time.
Brands sometimes mentioned for this model: Yanmar — is it one of these?
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the LOHI 34
Checking eBay for sails sized to this boat's rig…