Selene 53 / 55 Ocean Trawler

• Fuel 1,500 gal
  “Fuel Capacity: 1,500 USG ( 5700 Liters )” — builder, pdf.nauticexpo.com · “Total capacity 1,500 US gallons, two FRP fuel tanks” — builder, trawlers-yachting.com · “The 1,500-gallon fuel tank” — search excerpt (2008), novesea.com · “Fuel Tank: 2 x 550 gal” — broker listing (2010), seleneamericas.com · “The yacht carries 1100 gal of fuel” — search excerpt, shestakovyachtsales.com
  Selene's standard European specification for the 53, a builder document, gives 1,500 US gal. A 2010 boat sold by Selene Americas (two 550 gal tanks, 1,100 in all) and a broker's overview give 1,100, so US-spec or earlier boats may differ.
• Water 450 gal
  “Water Capacity: 450 USG ( 1700 Liters ); Two FRP water tanks ... total capacity 450 US gallons” — builder, pdf.nauticexpo.com · “Two FRP water tanks w/ shut off valve, total capacity 450 US gallons” — builder, trawlers-yachting.com · “Fresh Water Tank: 2 x 200 gal” — broker listing (2010), seleneamericas.com · “400 gallons of freshwater storage” — search excerpt (2008), novesea.com
  The builder's spec says 450; two listings, from 2008 and 2010, say 400 (two 200 gal tanks). Listings don't override the builder figure, but US boats may have 400.
• Holding unknown
  “Holding Tank Capacity: 150 USG ( 570 Liters )” — builder, pdf.nauticexpo.com · “One FRP holding tank ... total capacity 80 US gallons” — builder, pdf.nauticexpo.com · “Holding Tank Capacity: 150 USG ( 570 Liters ) ... One FRP holding tank ... total capacity 80 US gallons” — builder, trawlers-yachting.com · “Holding Tank: 1 x 110 gal” — broker listing (2010), seleneamericas.com · “a 100-gallon ho[lding tank]” — search excerpt (2008), novesea.com
  The builder's own spec contradicts itself (150 US gal in the dimensions table, 80 US gal in the plumbing section); listings give 100–110.
• Water heater 20 gal · AC + engine · standard (Torrid)
  “Torrid 20 gallons 120V/240V AC dual heating source hot water heater” — builder, trawlers-yachting.com
  From the builder's Selene 54' Standard European Specification, hosted by the French dealer and also the source of our tank figures for this model. Its dual heating source is taken to mean an electric element plus engine coolant. The document is titled 54', so it may reflect the later version of this hull.

Tanks are often replaced or added on older boats — check the tank labels or a survey for yours.

• Bow thruster unknown
  “SELENE 54' STANDARD EUROPEAN SPECIFICATION ... Recessed bow thruster tunnel” — brochure, trawlers-yachting.com · “DC ELECTRICAL SYSTEM ... Maxwell HWC 2200 windlass ... Aqua Signal navigation lights ... (no thruster listed)” — brochure, trawlers-yachting.com · “SELENE 53' STANDARD EUROPEAN SPECIFICATION ... Recessed bow thruster tunnel Integral FRP stern thruster casing” — brochure, pdf.nauticexpo.com
  The builder's standard European specification (titled 54', the same 18.24 m hull as the 53) molds in a bow-thruster tunnel, but its standard DC electrical equipment list has no thruster unit, unlike the Selene 38 spec. That makes our earlier figure of standard doubtful, and no option list was found to settle it.
• Stern thruster unknown
  “Integral FRP stern thruster casing” — brochure, trawlers-yachting.com
  The standard specification provides a stern-thruster casing in the hull but lists no stern thruster unit, so our earlier figure of standard isn't supported.
• Steering hydraulic · Hynautic
  “STEERING SYSTEM • Hynautic hydraulic steering system for pilothouse & F/B” — brochure, trawlers-yachting.com
  The builder's standard European specification gives Hynautic hydraulic steering at pilothouse and flybridge, with a teak wheel inside and a 30-inch stainless wheel on the bridge. The document is headed 54' but carries the 53's dimensions; US-market boats weren't checked.

Thrusters and steering are often replaced — check the units on your boat before ordering parts.