Rethana 27 Buyer's Guide
The Rethana 27 is a 27-foot masthead sloop built by Rethana Yachts in Germany from 1978 through 1986, with a centerboard keel that makes her a practical shallow-water coastal cruiser. Shoppers on the used market will find a fiberglass boat of moderate weight and solid construction, but one whose original tankage was minimal and whose 12-horsepower diesel defines her motoring limits.
Layouts on the Used Market
Most examples follow the standard 27.23-foot hull with an 8.20-foot beam and the centerboard trunk below. The variable draft — 2.62 feet board up, 4.59 feet down — means some boats will have worn or corroded centerboard gear that affects how the cabin sole and bilge are arranged around the trunk. Interior volume is typical of a 1970s coastal design, and the 24-gallon fresh-water tank and 7-gallon fuel tank are original-size constraints rather than signs of modification.
Equipment and Common Upgrades
The fleet left the factory with a single Farymann diesel of 12 HP and modest house systems, so owner additions tend to cluster around extending range and comfort. Buyers should look for added portable fuel and water containers, which compensate for the very small original tanks. Beyond that, canvas and sail-handling additions for the 322-square-foot masthead rig are the consequential upgrades; navigation and comfort gear vary by owner and are less decisive to survey.
What to Inspect
The original fuel capacity is very small at 7 gallons, so check how the current owner extends range — look for jerry cans, deck brackets, or a relocated auxiliary tank, and confirm any added tank is properly vented and bonded. The 24-gallon water capacity gave a very short supply range from new, so inspect the original tank for staining or softness in the surrounding sole and verify the plumbing has not been silently bypassed. On the centerboard models, examine the board pivot and trunk for play or leakage where the trunk penetrates the hull.
Availability and Buyer's Takeaway
These boats are typically found in Germany and Switzerland. Before committing, walk through this short list:
- Verify the Farymann starts cold and holds steady at the dock.
- Inspect the centerboard trunk for play or bilge dampness.
- Confirm how fuel and water range is extended beyond original tanks.
- Test the masthead sloop rig for worn running rigging at 322 sq ft load.
Price & volume trends
Monthly asking-price and listing-volume trends for the Rethana 27. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 3 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Jan 26 | 1 | $1,853 | — |
| Feb 26 | 1 | $2,896 | +56.3% |
| Apr 26 | 1 | $17,261 | +496.0% |
Where they're listed
Rethana 27 listings appear across 2 countries. Germany has the most listings with 2 (66.7%), followed by Switzerland.
Country view
3 listings · 2 countries| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| Germany | $10,079 | 2 | 0 | 66.7% |
| Switzerland | $1,853 | 1 | 0 | 33.3% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
3 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Moody 27 | 27.67' | $ 14,889 | 29 | 10 |
| Mirage Yachts 27 | 27.17' | $ 5,000 | 9 | 4 |
| Rethana 27You are here | — | $ 2,896 | 3 | 0 |