Balaton 21 Buyer's Guide
The Balaton 21 is a 21-foot masthead sloop designed by Gunnar Cardell in the late seventies and built by the Hungarian Shipyards & Crane Factory starting in 1977. For a shopper scanning the used market, it is a compact fiberglass boat with a construction story and a clear profile as a light coastal sailor rather than an offshore candidate.
Layouts on the Used Market
Most Balaton 21s available used are fin-keel boats with a hand-laid fiberglass hull and a sandwich fiberglass deck, carrying an iron keel and a mahogany interior. Some examples, mostly those originally sold in the UK, were offered with a twin-keel configuration, so a buyer should confirm which keel type is on any specific boat. The fin-keel draft runs about 3.94 to 4.24 feet depending on load, which keeps the boat accessible to shallow marinas.
Equipment and Common Upgrades
The model does not itemize typical brokerage equipment, so buyers should evaluate each boat on its own fitted gear. Given the 21-foot size and masthead rig, useful upgrades to look for cluster around sail handling and basic power. Any navigation or comfort additions should be judged for condition rather than assumed as standard.
What to Inspect
A buyer should verify the hand-laid hull and sandwich deck for past repairs. The iron keel should be checked for corrosion, and the mahogany interior for rot, but these are general cautions, not model-specific faults.
Availability and Buyer's Takeaway
No market regions are asserted here. For a buyer, the takeaway is a short checklist: confirm keel type (fin or UK twin), inspect the fiberglass hull and deck for repair history, check the iron keel for corrosion, and assess the mahogany interior for moisture damage. The Balaton 21 remains a small, documented seventies sloop best suited to sheltered-water sailing.