Not for sale or charter to U.S. residents while in U.S. waters.

Stern is a 49.5m motor yacht built by Wider Yachts, Ancona, Italy, classified as the Wider 165 model. Stern’s creative design is aimed at allowing the owner and guests to become closer in contract with the water, while offering greater exploration range.

Designed as a tri-deck displacement motor yacht STERN was awarded the winner at the 2019 World Superyacht Awards, recognized for the innovative diesel electric technology with modern hybrid azipod system, enabling extremely quiet operations with a zero emissions mode. The yacht can operate in a zero emissions mode (ZEM) with a battery bank of 91 cells allowing for silent cruising at five knots. Stern is built to RINA Green Plus Platinum Class.

Powered by four marine diesel generators, coupled to alternators and to electric motors linked to a power management system in conjunction with the latest battery technology, the power runs the hotel load and propulsion to two azipod drives offering diesel and electric drive.

The modern propulsion solution allows for a industry shift in the engine room space and layout configuration and positioning which has enabled the designers to optimise the hull space to greater scope and use for guest comfort and use of space. Accommodation for 10 guests in 5 exquisite and luxurious suites.

Expansive full deck to ceiling windows envelop the lounges of the main deck, allowing natural light into the spacious living areas.

One of the most exceptional features on board can be found in the area reserved for the owner: an apartment that extends across the complete beam of the yacht with two private balconies overlooking the sea.

On the main deck, there is a gym and a sauna. On the upper deck, there is the Sky Lounge and a dining area with sliding doors, which once retracted create the feeling of an open but sheltered outdoor dining area.

On the lower deck there are four spacious guest cabins all with bathrooms; two of them double VIP cabins and two twin cabins.

For crew, there is a large captains’ cabin on the upper deck adjacent to the wheelhouse and crew members have four twin cabins in the lower deck. These cabins are on either side of the novel centreline fwd/aft access corridor which connects the crew with the engine room, improving the operability of the yacht for crew to maintain the systems and provisions without compromising guests areas.

The exterior and interior space has been maximised in terms of layout and offers the guests an astonishing selection of lifestyle features and amenities for a yacht of this size, this included a walk-around beach club, saltwater pool, a touch-and-go helipad, an aft garage, and two Jacuzzis.

Specifications

Builder	WIDER
Model	165
Length (LOA)	162' (49.56m)
Year	2019
Year Refit	2021
Gross Tonn.	499
Draft	8' (2.3m)
Beam	27' (8.45m)
Location	Turkey

Accommodations

Staterooms	5
Sleeps	10

Crew Cabins	9
Crew Sleeps	9

Dimensions & Capacity

LOA	162' (49.56m)
Min Draft	8' (2.3m)
Max Draft	8' (2.3m)
Fuel Tank	15,058 g (57,000 L)
Fresh Water	3,434 g (13,000 L)
Gross Tonn.	499
Displacement	430

Construction

Hull Material	Aluminum
Ext. Designer	Fulvio De Simoni
Int. Designer	Ideaeitalia
Cruising Speed	13 Knots

Full Details

Other Machinery

Propulsion System

Control system implemented by Wider Management System (WMS)
Electrical power generated by four variable speed generators
Electrical power distributed through main DC variable voltage switchboard

Battery Configuration

4 x Battery Management systems
955.5Kwh nominal capacity

Battery Mode: (Zero Emission Mode ZEM)

Underway: 5 knots – 32 nautical Miles (6.4 hours)
Anchor mode: 14 hours

Electrical

Propulsion generators 400V, AC 3 p (75kW each)
Electrical motors 400V AC, 3p
DC electrical system 24 VDC
12-volt consumers equipped with 24V/12V transformers or DC/C convertors
Grounding and bonding system (copper and aluminium straps to hull)
Switchboard in electrical room (IP 23 protection)
AC distribution sub-panels located throughout vessel
Lighting systems are full LED throughout unless standalone lamps
Emergency lighting in public and critical areas of the yacht

Shore power

2 connections
50/60Hz voltage
- 175/260 V and 248/168 A
- 350/520 V and 125/84 A
- fire pump
- 1 bilge pump
- sea water pumps for Nidec
- sea water pumps for Ac chillers for Nidec
- 2 sea water pumps for Ac chillers
- 2 sea water pumps for Stabilizer
- 2 sea water pumps for propulsion
- 2 sea water pumps for swimming pool"

Galley & Laundry Equipment

Galley

One (1) dish washer MIELE - G6660 SCVi
One (1) built-in oven MIELE - H6890BP
One (1) steam oven MIELE - DG6030
One (1) microwave oven MIELE M6262
One (1) induction hobs MIELE - KM6388 including fiddle rails
One (1) TEPPANYAKI CS 1327 Y
One (1) deep Fryer MIELE CS1411 F
One (1) fridge-freezer MIELE - K1901Vi
One (1) Corian top with two integrated sinks including flexible hose water tap
One (1) stainless steel exhaust range hood, connected to the exhaust ventilator, with removable grease filters

Pantry

One (1) coffee machine MIELE CVA 6431
One (1) wine cellar MIELE KWT 6321 UG
One (1) fridge-freezer combi MIELE K FN 37682 id
One (1) ice maker - VITRIFRIGO HYDRO P

Laundry

Two (2) MIELE - PW6065 6,5 kg washing machine
Two (2) MIELE - PT7135C 6,5 kg dryers machine
One (1) iron LAURASTAR
One (1) Iron DILAS - mod Laura
One (1) sink in stainless steel + water tap with extendible head.

Crew Mess

One (1) fridge-freezer KFN 37682 id
One (1) microwave oven MIELE M6032SC
One (1) dish washer MIELE - G6660 SCVi
One (1) coffee machine Krups Nespresso
One (1) sink in stainless steel
One (1) garbage cooled storage 90 LT

Cold Room

2m3 refrigeration room split between fridge (+2oC) and freezer (-25oC)

Dumb Waiter

Stainless steel dumbwaiter fitted linking pantry to serve the upper deck saloon

Communication Equipment

VHF system
SSB system
SAT. COM. System

Navigation Equipment

Visualizing System (for Radar#1-Radar#2-Sounder-Chart-Connig)
Radar System
Sounder-Log System
RX GPS System
Barometer
Clock
Inclinometers x 2
Training manual
Compass deviation card
Binoculars
Navigation Tool Kit
Navigational Lights
Registration Flags
International code flags
Navigation day shape signals
Posters and signs survival craft and equipment operations
Hand bearing compass
Aldis lamp

Entertainment Equipment

Sundeck

N°6 JL Audio speaker water resistance 7.7 “
N°2 JL Audio subwoofer water resistance 10”
N°1 Mini iPad
N°1 Power soft Amplifier
Slave audio Upper Deck saloon
N°1 DJ Plug

Cockpit Upper deck

N°2 ASK external waterproof (Ribbon + Woofer)
Slave audio Upper Deck saloon
Upper deck Fore deck
N°6 JL Audio Speakers water resistant 7.7”
N°2 JL Audio subwoofer water resistance 10”
N°1 Mini iPad
Slave audio Upper Deck saloon
N°1 DJ Plug

Cockpit Main Deck

N°4 SONANCE VP 65 XT Audio speaker water resistance 7.7 “
N°1 JL Audio subwoofer water resistance 10”
N°1 Custom button wall command
Slave audio Main Deck saloon

Beach Club

N°6 SONANCE VP 65 XT Audio speaker water resistance 7.7 “
N°2 JL Audio subwoofer water resistance 10”
N°1 Mini iPad + lifeproof cover
Airplay audio device source

Saloon Upper Deck

N°4 SONANCE LCR1 in-wall speakers
N°1 SUNFIRE HRS-8 active subwoofer
N°1 TV Led 72"
N°1 Mini iPad
N°1 Dock station
N°1 HDMI plug

Saloon & Dining Area Main Deck

N°7 SONANCE LCR1 in-wall speakers with surround system
N°2 SUNFIRE HRS-8 active subwoofer
N°1 TV Led 65" ceiling mounted retractable and 180° rotatable
No1 TV Led 72"
N°1 apple TV with airplay
N°1 Mini iPad
N°1 Dock station
N°1 HDMI plug
N°1 Kit video-conference

Owners Cabin

N°2 SONANCE LCR 2 in wall speakers
N°1 SUNFIRE HRS-8 active subwoofer
N°1 TV Led 55”
N°1 Mini iPad
N°1 Dock station
N°1 apple TV with airplay
N°1 HDMI plug

Owners’ Bath

N°2 SONANCE VP 65 XT ceiling speakers

Owner’s Study

N°2 SONANCE VP 48 speakers
N°1 TV Led 40"
N°1 Mini iPad
N°1 Dock station
N°1 apple TV with airplay (shared with owner cabin)
N°1 HDMI plug
N°1 LAN plug
N°1 Kit video-conference

GYM

N°2 SONANCE VP 48 speakers
N°1 TV Led 40"
N°1 Mini iPad
N°1 Dock station
N°1 apple TV with airplay
N°1 HDMI plug

2 x VIP Cabins

N°2 SONANCE VP 48 ceiling speakers
N°1 TV Led 40"
N°1 Mini iPad
N°1 Dock station
N°1 apple TV with airplay
N°1 HDMI plug

2 x Guest Cabins

N°2 SONANCE VP 48 ceiling speakers
N°1 TV Led 32"
N°1 Mini iPad
N°1 Dock magnetic
N°1 TV Led 32"
N°1 apple TV with airplay
N°1 HDMI plug

Captains Cabin

N°2 YAMAHA NS IC400 ceiling speakers
N°1 TV Led 32"
N°1 apple TV with airplay
N°1 Mini iPad
N°1 Dock station

Wheelhouse

N°2 YAMAHA NS IC400 ceiling speakers
Airplay audio device source (volume and on/off by touch panel)
N°1 Mini iPad
N°2 LAN plug
N°1 Dock station

Galley

N°2 YAMAHA NS IC400 ceiling speakers
Airplay audio device source with volume control

Crew Mess

N°2 YAMAHA NS IC400 ceiling speakers
N°1 Mini iPad
N°1 Dock station
N°1 TV Led 32"
N°1 apple TV with airplay
N°1 LAN plug

5 x Crew cabins

N°2 YAMAHA NS IC400 ceiling speakers
Airplay audio device source

CCTV System

One (1) Panasonic HD network recorder
One (1) fixed dome external camera Panasonic at the main deck cockpit
One (1) fixed dome external camera Panasonic on the mast
Two (2) fixed dome external camera Panasonic at the main deck passageways ps./stb.s
Five (4) fixed dome internal cameras Panasonic:
One (1) in the electrical room
One (1) in the engine room
One (1) fwd garage
One (1) Beach Club

ENGINE ROOM

One (1) workbench;
One (1) LED light with extendible cable;
One (1) stainless steel sink;
One (1) toolbox with tools;
Finish side wall: RAL 9010 painted aluminium sandwich panels type DIBOND;
Floor: aluminium plates non-skid fitted on aluminium frame chrome finish;
Overhead: as side wall;
Lighting: AC neon type;

Tenders & Toys

7.5m Beach lander – X Craft

Deck Equipment

2 x Windlass Muir 5.5KW 400V 3P
2 x Capstans Muir 4.0kW 400V 3P

Anchoring

2 x galvanized 220kg anchors HHP type
Chains: 6 lengths of 27.5m

Mooring Bollards

4 x bollards (570 x 78) on foredeck: 2 x port side and 2 x starboard side
4 x bollards (578 x 78) on aft deck: 2 x port side and 2 x starboard side
2 x spring-line bollards (400 x 78) at midships: 1 x port and 1 x starboard side
2 x retractable aluminium bollards (400 x 78) on aft edge of swim platform

Fairleads

Two (2) Two (2) fairleads on the foredeck: 1 x port and 1 starboard side
Two (2) fairleads on the aft deck: 1 x port and 1 starboard side
Two 92) fairleads at amidships: 1 x port and 1 starboard side

Gangway / Side Boarding Ladder

Integrated transom mounted retractable ‘Sanguineti & Chiavari’ 1.95m over swim platform extension.
Side boarding ladder (Marquip) aluminium and stainless steel folding rails

Safety & Security Equipment

Safety Systems

EPIRB
Radar reflector
Meteo Receiver system
Portable RTX VHF System
AIS
SSAS system
BNWAS system
Ships horn
Fixed Firefighting system (Polytechno Aerosol) Engine Room and Electrical Room
All accommodation spaces fitted with water-mist ‘Ultrafog’
Galley fitted with Ultrafog system

Systems

Monitoring Alarm System
Fire & Gas System
Underwater lights (17 fitted) below waterline
Telephone network system (19 cordless phones connected to Wi-Fi system)

Refit History

Period: 2021 / 2022

General

LSA & FFA annual servicing
Annual class inspection
Annual flag inspection
Ultra-Fog Annual service
Annual service of life rafts
Full service of lifejacket
Check of immersion Suit in compliance
Service of portable fire-extinguishers
Painting of bilges and engine room

Exterior

Helideck, flexi teak replaced with real teak wood.
Foredeck, flexi teak replaced with real teak wood.
Repainting of the portion of the hull between the anchor pocket and the first window below.
Replacement of the orange beauty line in the specific areas.
Sat domes repainted.
Transom door repainted.
Upper deck salon aft port side repainted.
Repair Hull Corrosion around anchor plates repair with the full paint cycle.
Antifouling reapplied prior to launch.
Anchor pockets and stem plate cleaned and polished to the required mirror finish
Painting of anchor chain shackles.
Helideck hatches serviced and repainted.
Repair LED light strip starboard side swimming platform stairs access
Main deck aft hatch to beach club locking system repair and repaint.
Deck storage lockers cleaned and painted
Replace white sealant and white rubber contour sundeck lockers
General corrosion issues addressed and repainted
All teak steps replaced on main deck and upper deck aft staircases.
Teak margin board replacement aft port swim platform
Teak margin board replacement aft upper deck.
Aft decks, ceiling panels, fixings made secure and realigned.
Installation of the 5G modem and antennas
Replacement of glass sundeck parapet panel SD-04-SCALA
Hull windows sealant replaced.
Teak border sealant replaced as required.

Engineering

Reposition of 52 lithium power modules to the newly constructed battery room.
Add 39 new lithium power modules to the newly constructed battery room.
Heavy duty Cable runs from Battery room to Power management systems.
Connections and programming required for upgraded zero emissions system.
Balancing of frequency converters of propulsion.
Servicing of command controls for drive system in bridge and wing controls.
Cooling system inspection of all systems, checking all fittings, glycol and refrigerants, charge if necessary, cleaning of exchangers
Cleaning of MAN engines intercoolers
Deep cleaning of all ventilation systems
Galley exhaust network cleaned and degreased
Laundry exhaust network cleaned
AHUs cleaned and disinfected
Fan coils network cleaned and disinfected
Ventilation exhaust network cleaned and disinfected
DGs MAN service checked for leakages
Inspection of batteries: DG's, emergency, service, radio, all UPS batteries, changed as necessary
Removal and reinstallation of sea water pumps:
- fire pump
- 1 bilge pump
- sea water pumps for Nidec
- sea water pumps for Ac chillers for Nidec
- 2 sea water pumps for Ac chillers
- 2 sea water pumps for Stabilizer
- 2 sea water pumps for propulsion
- 2 sea water pumps for swimming pool
Service for the sea water pumps (change of bearings, insulation test) - Gianneschi pumps for the heat exchangers & Calpeda pumps for the chillers
PS/Stb POD oil and filter change.
Hydraulic oil samples sent for analyse.
AC upgrade additional fan coil in MD rack installed.
Cleaning servicing Charge air pipes / Heat exchangers:
- 2 heat exchangers for Ac chillers for Nidec
- 2 heat exchangers for Nidec glycol
- 2 heat exchangers for Ac chiller for air conditioning
- 1 heat exchanger for the PODs"
Changing of noisy fan of fancoil in VW rack Lower deck
Engine room bilge cleaning and degreasing.
A new flooring and shelves in ER, space freed from batteries
Replaced damaged AFT sea-chest filter
Replacement chiller unit pump for the cabinet port due to glycol leakage
Calibration of all tank level sensors
All drives and components in control room cabinets checked and replaced as required by NIDEC.
Optimize the ventilation air flow inside the switchboards.
Increase the degree of protection of the cabinets against the outside warm, moist air.
Gaskets cabinets change
Drivers recovery and cleaning.
Installation of probes for internal and external temperature monitoring of electrical equipment.
DC bus insulation check.
Improve the cabinets insulation.
Temperature control of transformers.
Check with a torque wrench that all fuses and busbars are tightened to correct toque.
Verification and calibration of all flows of fan coils cabinets.
Temperature measurements campaign inside the genset panels.
Hamann service
Engine room, re-paint areas where is necessary, replace damaged insulation.
Water maker plant, Annual service.
Starboard stabiliser, re-programmed.