One Tonner by Judel Vrolijk


VAT included

  • Reference ID 595
  • Builder Jeanneau
  • Model One Tonner Knierim
  • Designer Judel and Vrolijk
  • Year 1989
  • Engine type Single
  • L.O.A. (mtr) 11.97
  • Beam (mtr) 3.92
  • Draft (mtr) 2.2
  • Displacement (Kg) 6300
  • Material Composite
  • Engine Volkswagen
  • Berths 6

Yacht description

TOLENZE, formerly "SILVER MACHINE", is one of the four designed by Judel &Vrolijk, the legendary Admirals Cup, which was produced between 1989 and 1990 on the KNIERIM shipyard were built entirely from carbon Nomex sandwich. The 3 Sister ships have the same legendary names in sailing circles: PINTA, CONTAINER and SAUDADE and are probably the most elegant (and also most expensive) Yachts ever built in the one-ton class. The new price of a Racers from this series amounted to over 1.4 million DM in 1990. 

From 1991 to 2000, TOLENZE competed in a few races as part of the Admiral Cup. Between 2005 and 2013 TOLENZE was mostly on Land, first in Rostock and then for overhaul in Hamburg. This is how the explain the excellent general condition of the entire construction.

From 2010 to 2014 TOLENZE was at a shipyard in Hamburg-Harburg to be completely overhauled.

  • new underwatership with Flexshield (thick-film epoxy).
  • the underwater ship in the stern area was straightened
  • keel added lead bomb of approx. 500 kg weight.
  • all stanchions as well as the pulpit and pushpit were made from V4A
  • Both the entire running rigging and a lot of deck fittings as well as all jib rails / pulleys and the traveler incl. mainsheet fittings were renewed during
  • the backstays were finished in 2017 sheathed Dyneema ropes completely renewed
  • the deck was completely redesigned and provided with an anti-slip epoxy coating.
  • Interior renewed, during which the entire electrical system was renewed.
  • A new VW marine diesel engine and a large Flexofold folding propeller was put


  • gennaker equipment
  • lazy bag, lazy jack (narwhal)
  • Rigid boom vang (Rodkick new 2018, extra strong gas spring)
  • all sheets and halyards new June2019
  • Carbo racing tuffluff new November 2020
  • Navtec ROD new nov 2020
  • Carbon bowsprit


  • Mainsail Quantum Fusion MR 5300, battened, new in 06/2019
  • Genoa Quantum Racing 2MR 5000, new in 09/2018
  • Quantum Genoa 3 M6 28,13 m2, light taffetta grey, new Nov 2020
  • Spinnaker checked and repaired in 2018
  • Genoa Light/Medium 3Di OCEAN 370 12,600 Dpi, new July 2020


  • Sleeps 6
  • Saloontable with 2 sofas port and starboard
  • 2 cabins aft with double bed
  • 1 cabin front with double bed
  • Charttable
  • Electric hot plate
  • compressor refrigerator

Deck and Cockpit

  • Lewmar 50 AST alu selftailing 200mm basis, new sept 2018
  • 2x Lewmar 48 AST alu selftailing 200mm basis, new sept 2018
  • mainsheet traveler
  • Teak on deck
  • 2 anchors


  • 3 batteries (Optima-Spral Cell)
  • Battery charger
  • shore connection
  • night lighting, tuff
  • 4 12V socket
  • 4 220V socket
  • heating (Eberspächer D3LC diesel)


  • First aid kit
  • binoculars
  • Bilgepump, manual and electric
  • fire extinguishing system
  • swimming ladder

Electronics and Navigational Gear

Electronics Garmin June 2020

  • Autopilot (Garmin)
  • GPS with antenna 19x NMEA2K
  • Plotter
  • Compass (Plastimo)
  • Log Airmar DST800, Multisensor that offers depth, speed, and temperature functions in one compact thru-hull fitting
  • Multifunction displays GMI20
  • Mastdisplays GNX120 7 inch
  • Mastbracket for two displays (carbon)
  • Wifi router and Gateway
  • Windsensor GND10


The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.