The boat Koštanca was named after the place, where the shipyard was set. The territory of the village Korte (near Izola, Slovenia), which is located north of the road heading to Piran and west of the road heading uphill to Kaštelir, is called the Koštančevo or Koštanca after the last baron and landowner Nico Costanzo.

Batana - flat-bottomed boat of north Adriatic, customized features (curved sides, keel and V-shaped bottom). Our boat is designed and built according to personal preferences and requirements and therefore can not be easily classified into one of known batana subtypes of Slovenian sea and Istria. After the classification, presented by the researcher Slobodan Simič - Sime in his recent publication "Batane Istre", we could say, that it combines the elements of three types: (1) the one with curved sides, (2) the type with V-shaped bottom and (3) the one with keel. Experts would also easily recognize the shape of a typical "batel" or "topo" bow. The key features of its unique customized hull lines are mainly:
  • a stronger structure components (stempost, floor and bilge timbers, planking);
  • an evenly curved boat side;
  • a greater hold depth;
  • a more rounded stempost with increased rake, batel-like bow sharpening at the deck level;
  • a wider stern;
  • a higher washboard with increased number of futtocks;
  • a slightly inclined V-shaped bottom;
  • a higher keel.

  • length over-all: 489 cm (16'1")
  • beam (maximum breadth): 184 cm (6')
  • height from keel upwards: at bow 110 cm (3'7"), at the lowest part of the washboard 87 cm (2'10"), at stern 92 cm (3')
  • rib thickness: floor timbers 45 mm (1,8"), bilge timbers and beams 40 mm (1,6")
  • planking thickness: 27 mm (1,1")
  • mast height: 485 cm (15'11")
  • sail area: 15,5 m2 (167 sq ft)
  • weight without mast, sail and outboard motor: 840 kg (1850 lbs)

  • oak (keel, timbers, stempost, knee, transom, beams, futtocks, waterway, keelson, beam shelf, lower ceilig plank, hatchway framing, washboard, bitts, rudder);
  • larch (side planking, floor planking, deck);
  • spruce (mast, yards, beams and blocks of the shipyard, ribbands, wedges);
  • ash (oars, tiller, thole, blocks, mast cleats);
  • stainless steel A4 and A2 (wood screws, hex bolts, plain washers, nuts, block parts, cleat framing, block's axis, gudgeons and pintles, mast-head clamp, the plate for the outboard motor);
  • brass (protective strip on the stempost and keel shoe with its screws);
  • bronze (block sheaves);
  • oakum (hemp fiber soaked in pine tar) for caulking;
  • red lead tetroxide, linseed oil and synthetic turpentine (protective coat);
  • Tessarol spatula putty;
  • Mekol D3 (PVA water resistant glue);
  • Sikaflex 290 DC (weatherproof polyurethane deck caulking sealant);
  • nylon ropes of various thickness (rigging, rope fenders);
  • Dacron cream (lugsail);
  • Hempel undercoat primer and Milledynamic (antifouling);
  • Hempel topcoat and varnish;
  • Beltop-s UV plus (varnish for mast and yards);
  • Louvre Acrilic in Liquitex Acrilic color (paints for sail);
  • other auxiliary material (nails, adhesive tape, paper, carbonless copy paper, pencils, electrodes, sintetic oil ...)