Nautitech 475 Sailboat Review, Specs, and Listings

Alain Mortain & Yiannis Mavrikios·1995·Nautitech Catamarans
Approximate drawing

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Hull Type
Catamaran · twin
Rig
Fractional Sloop
LOA
47' · 14.33 m
Disp.
20,286 lbs · 9,202 kg
First year
1995

The Nautitech 475 is a 47foot catamaran conceived in 1995 by Alain Mortain and Yiannis Mavrikios for the charter operator VPM, with Dufour listed as the building yard. Two distinct versions exist: the original 475 and a later, substantially revised model that Multicoques Mag examined on a sixteenyearold example. The hull lines drawn for the 475 proved durable enough to carry forward onto the Nautitech 47 and the thennew 482, a telling sign that the platform's underwater shape was considered sound long after the deck and cockpit had been reworked anchor.

Measurements

Dimensions 01

Length Overall
47 ft
Length on deck
Waterline Length
46 ft
Beam
25 ft
Draft
4 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Catamaran
Keel Type
Twin
Ballast
Displacement
20,286 lbs
Water Capacity
210 gal
Fuel Capacity
110 gal

Rig & sails 03

Rigging Type
Fractional Sloop
Mainsail luff
Mainsail foot
Foretriangle height
Foretriangle base
Forestay Length (estimated)
Sail Area

Calculations 04

Sail Area to Displacement Ratio
Ballast to Displacement Ratio
Displacement to Length Ratio
93.04
Comfort Ratio
9.32
Capsize Screening Ratio
3.67
Hull Speed
9.09 kn

Design and Construction

The revised version grafted a stern platform that lengthens the cockpit and a superstructure onto the transom that keeps foot traffic moving fluidly around the seating area anchor. That same grafted stern structure meets the sea directly when the boat rears up in a steep chop. Built as a solid-fiberglass catamaran, the 475 has a 25-foot beam, 4-foot draft, and a single 50-horsepower Volvo Penta MD 22L diesel.

Rig and Handling

The modified 475 adopted a rigid bimini that incorporates the mainsail sheet. The trade-off is sightline: from the winch dedicated to mainsail adjustment, the sail itself is no longer visible anchor, so trim changes must be judged by feel or crew call rather than direct view.

Accommodations

The revised exterior table was completely redesigned and improved conviviality on deck anchor. With 210 gallons of water and 110 gallons of diesel carried, the 475 was sized for extended stays aboard.

Known Issues

Two faults trace to the modified version's aft redesign. The stern superstructure tends to strike the sea when the boat pitches up in sharper chop anchor, and the mainsail is invisible from its trimming winch. Both are artifacts of the later modification, not the original hull.

The Verdict

The Nautitech 475 is a charter-bred catamaran whose hull outlasted its own deck redesign onto later models. The revised version opened cockpit space but paid with a slamming transom and lost trim sightline.

Pros

  • Hull design reused on the 47 and 482, evidence of a sound underwater shape
  • Redesigned exterior table and stern platform improve cockpit conviviality and flow
  • Rigid bimini integrates mainsheet for sheltered helm control

Cons

  • Modified-version stern superstructure slams the sea when the boat rears in steep chop
  • Mainsail invisible from its dedicated trimming winch on the modified version

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