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2017 Mengi Yay 104'



2017 Mengi Yay

104' (31.70 m) -SERENITAS

SERENITAS is the 2nd successful launch of Mengi Yay's 32m Trawler series. This 104'10 (31.95m) luxury motor yacht offers a sophisticated exterior design and engineering by Ginton Naval Architects. The yacht's interior has been designed by Guido de Groot Design. She’s a highly modern and exceptionall


Flag of Registry: Marshall Islands


SYS Yacht Sales is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Worth Avenue Yachts. It is offered as a convenience by this broker/dealer to its clients and is not intended to convey direct representation of a particular vessel


Quick Specs

Category: Motor Yachts

Vessel ID: 2772492

LOA: 104' 10'' (31.95 Meters)

Type: Power- Used

Year: 2017

Beam: 24' 10''

Draft Max: 7' 3''

Cabins: 5

Sleeps: 10

Maximum Speed: 13 Knots

Cruise Speed: 10 Knots

Range NMI: 4238

Fuel Type: Diesel

Hull Material: Steel

Flag: Marshall Islands

Stabilizers: None

Fuel Tank: 8506 Gallons (32198.7 Liters)

Fresh Water: 2020 Gallons (7646.53 Liters)

Holding Tank: 1471 Gallons (5568.34 Liters)

Gross Tonnage: 293

Builder: Mengi Yay

Full Details


*Not available for sale to US residents while in US waters.

SERENITAS is the 2nd successful launch of Mengi Yay's 32m Trawler series. This 104'10 (31.95m) luxury motor yacht offers a sophisticated exterior design and engineering by Ginton Naval Architects. The yacht's interior has been designed by Guido de Groot Design. She’s a highly modern and exceptionally comfortable superyacht. With the use of light composite materials and the yacht’s gravity center drawn further downside, SERENITAS is a very stable and fuel-efficient vessel. She was custom built in 2017 and is the perfect combination of performance and luxury. 

Built with Aluminum superstructure and Steel hull, her twin 490 BG Caterpillar engines nudge her to a top speed of 12.5 knots with a cruising speed of 10.1 knots which enables the yacht to efficiently travel 4,000 nm.

SERENITAS interior layout sleeps up to 10 guests in 5 staterooms, including a master suite, 2 VIP staterooms, a double stateroom, and a twin stateroom. She is also capable of carrying up to 7 crew onboard to ensure a relaxed luxury yacht experience for guests on board. White satin and bright paint are used in areas where reflections are used to ensure the spread of light. Timeless styling, beautiful furnishings and sumptuous seating throughout to create an elegant, modern and comfortable atmosphere for socializing and entertaining with family and friends.  


Low fuel consumption, exceeding 4000nm range.

Zero speed stabilizers to reduce any rolling motion while at anchor and underway

Master on main deck

Jacuzzi on the sun deck

Large crew area (up to 7 crew)

Commercial Class Classification


LOA: 32.0m (104' 10")  

LWL: 30.7m (100' 9") 

Beam: 7.57m (24' 10")

Draught: 2.20m (7' 3")

Dry Weight: 87,000 kg (191,802 lbs)

Displacement: 255,000 kg (562,178 lbs)

Gross tonnage:  293 tons


SERENITAS offers accommodation for up to 10 guests in 5 staterooms, featuring the master cabin on the main deck and three VIP cabins and one twin cabin on the lower deck. All cabins with en suite heads, accessible by sliding doors. Next to the spacious master cabin, the main deck includes the main salon with dining area and sumptuous seating area, perfect for socializing and entertainment. 

Number of single berths:  2

Number of double berths:  4

Number of Cabins: 5

Number of Bathrooms: 5

Propulsion & Transmission

Twin Caterpillar Cl2, 497 MHP@ 2300 rpm IMO TIER Diesel Electronic Engines

ZF W320 4,048:1 Gearboxes

Construction and Design

Hull/Superstructure:  Steel / Aluminum

o Hull: Steel

o Yield strength 235 N/mm2 

o Superstructure Plating: Aluminum 5083 H321min. yield strength 125 N/mm welded

o Superstructure Extrusions: Aluminum 6082 T6min. yield strength 125 N/mm welded

Deck material: Teak

External Designer: Ginton Naval Architects BV 

Internal Designer: Guido de Groot Design BV 

Naval Architect: Ginton Naval Architects BV 


A30 fire insulation for engine room

B15 fire insulation for galley

Vibration and sound insulation for accommodation space with Mascoat, damping plate etc.


Maximum Speed: 12.1 knots

Cruising Speed: 10.5 knots

Fuel consumption:

o At Maximum Speed, 2x92 = 184 LPH (48 GPH)

o At Cruising Speed, 2X40 = 80 LPH (21.5 GPH)

Range at cruising speed 4,238 nm 


Fuel: 32,200 lt (8,506 gal)

Lubrication oil: 520 lt (137 gal)

Dirty lube oil: 500 lt (132 gal)

Fresh water: 7,650 lt (2021 gal)

Grey water: 3,730 lt (985 gal)

Black water: 1,830 lt (483 gal)

Engine Room and Machinery

Engines: 2 x Caterpillar C12 490HP (490 bhp - 366 bkW - In-line 6, 4-Stroke-Cycle Diesel)

Twin Caterpillar C4.4, 69 ekw@ 1500 rpm, 50hz, Marine Diesel Generators 

Single Caterpillar C2.2, 22.5 ekw@ 1500 rpm, 50hz, Marine Diesel Generators

Waste treatment system: TECHNICOMAR

Electrohydraulic steering gear data Hidrolik, DDS 2x550

Bow thruster Global Marine, GT420-023, 45kW

Stabilizer MATN’s

Deck crane Ezberci Marine, SWL 880kg @ 4.5m

Gangway Ezberci Marine, Telescopic type, 5.5m

Cold Room Marincold, +4°C & -18°C

Dual station remote control electric anchor winch Lewmar V8 1LH/1RH

Dual station capstans Lewmar C4-5, 1LH/1RH

Remote control searchlight, Sanshin HR-1012 searchlight, 2 x 55W, 24VDC

Stainless steel framed saloon doors Bofor

Sewage treatment unit Tecnicomar, Ecomar 45, 4500 liter/day

Air condition system Condaria, 288000 btu/h main chiller and 36000 btu/h second chiller

o Wheelhouse: Fan coils Condaria, 2 x 16000 BTU/h

o Master Cabin: Fan coils Condaria, 2 x 16000 BTU/h

o Guest Cabins (including VIP cabin): Fan coils for VIP cabins 2 x 16000 BTU/h, for the others 2 x 6200 BTU/h

o Galley: Fan coils Condaria, 2 x 16000 BTU/h

o Salon : Fan coils Condaria, 2 x 24000 BTU/h

o Crew cabins (including Captain cabin): Fan coils Condaria, 4 x 6200 BTU/h

o Laundry: Fan coils Condaria, 9200 BTU/h

Fuel filters Parker RVFS-1 main filter and 3 pcs; Parker 75500MAXM10, 2pcs; Parker 751000MAXM10 secondary filter

Dual fuel transfer electrical pumps 1 pcs; Gianneschi CP 26 A1 24V DC 0.20kW 1500 RPM and 1 pcs; Gianneschi CP 30 A1

Bilge and fire pumps Gianneschi pump Maxi Sub 24V CC 0, 18kW

Emergency diesel fire and bilge pump Gianneschi diesel engine pump M-ACB 531 9kW 1800 RPM with body pump and impeller

Oil change pump Gianneschi group pump FQ15 230/400V 3 phase 50Hz

Black and grey pump Gianneschi pump MVI 80 230/400V 3 phase 50Hz 1.5kW

Hot water circulation pump Gianneschi hot water circulator Z 30 Top180

Watermaker Idromar MSE300 Duplex Watermaker 2 x 300 LT/hour

Water softener Idromar Idrofast 9100

UV sterilizer Idromar SH5000

Dosing station with silver ion Idromar IDM 1047

Hydrophore pump Gianneschi WPS-Group pump 2 jet 518 B.C.E. 24V+380V 3 phase 50Hz Horiz.

Ventilation fan for engine room ventilation Axial Blower ELL/AP 509/1 230 400V

Circulation fan for engine room ventilation Axial Blower ELL/AP 358/6/45° 230/400V T 50Hz

Fire dampers S/S fire damper 700x700x200mm A0-A60 with Belimo Actuator 24V

Main engines exhaust system Soundown, GRP material

Hot FW circulation pump Gianneschi hot water circulator Z 30 Top 1801-1/4” 230/400V

Boiler S/S boiler 200LT 230/400V 3 phase 50Hz 3+3kW horizontal

Tanks gauges Kayse LS30 4-20mA gauges

Transom doors wooden material with 316L stainless steel lock and hinge

Propulsion and Steering

Twin Caterpillar Cl2, 497 MHP@ 2300 rpm IMO TIER Diesel Electronic Engines

ZF W320 4,048:1 Gearboxes

Rudder System Data Hydraulic Systems, 1 x 380V Pump 1 x 24V Pump, 1 x Follow up steering wheel, 3 x non follow up joystick, 1 x emergency hydraulic steering wheel

Shafts: 2 x BT MARINE 80 MM DUBLEX Stern Tube Seal: 

BT MARINE Mechanical Coupling: AQUADRIVE. CV 60

Propeller: 2X BT MARINE 1168 MM, 5 BLADES, HIGH SKEW

Stabilizers: MATN'S Stabilizers at anchor and underway

Electrical Systems

Voltage: 24V / 230V / 400vV

Battery/capacity: 1500Ah

Inverter: Victron Energy 24/5000V Shore power: 400vV

Communication and Navigation Equipment

Autopilot Furuno NavPilot-711C

Satellite compass Furuno SC-30

AIS Furuno FA-50

VHF Furuno FM-8900S

Weather station Furuno 150Wx

Navtex Furuno NX300

Loud hailer Furuno LH-3000

Sailor Epirp SE406-II

Sailor Sart II

Portable VHF Icom IC-GM-1600E

Radars: Furuno 2 X 9 GHZ X CLASS Echo Sounder: Furuno Multi

GPS Furuno model GP-33 


GPS Compass: SC 30

Digital fish finder, sounder Furuno DFF-1

SSB Radio Telephone

3 x FURUNO Hand Held Radio: 2 x GMDSS ICOM

Satcom:  1 x FURUNO INMARSAT C, 1 x FURUNO INMARSAT C MINI Internet: Cellular Modem

Magnetic Compass: Cassens Plath

Chart Plotter: Furuno TZ2 Touch Network ECDIS and Radar

Entertainment Equipment

Heos by Denon audio system, connected to Wi-Fi network, controllable by iPads on board or by guests mobile. Spotify and similar platforms. Amplifiers able to command saloon, sundeck, aft, bow areas, separately or together on party mode.

Funtoro network video system connected to servers. 

Satellite TV and movies available in every cabin. 

Denon Music player in each cabin and Marantz blue ray player in saloon and master cabin.

XBOX video game console


Galley and Laundry Equipment



Microwave: ELECTROLUX 

Fridge & Freezer:  Pro ELECTROLUX

Coffee maker: Nespresso C 121

Dish washer: Pro ELECTROLUX

Washing machine: 2 x Pro ELECTROLUX Dryer: 2 x Pro ELECTROLUX Washer


2 x Anchors 310kg

2 x Anchor chains 137.5m each

1 x Deck crane EZBERCI MARINE, 880kg, 4,5m

10 x Underwater lights USA

Tender and Toys

ZAR tender 5m Yamaha 100hp 

SURVITEC rescue tender 4.5m 40hp 

Seadoo spark 3-person jet ski 90 hp 

Seabob F5 S




Sea kayak

2 x Paddleboards

ONEAN Carver twin electric jetboard (new in 2020) 



Inflatable kayak for 2 persons

Snorkeling gear

Safety and Security Equipment

Fire extinguishers: 9 x Powder, 3 x CO2, 3 x Foam, 2 x remote release CO2 (fixed)

5 x Fire hydrants

EPIRBS: SAILOR with Internal GPS 




Electric bilge pumps: GIANNESCHI


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.

Contact Broker

For more information about this yacht contact SYS Yacht Sales.
We look forward to working with you!

Want more information about this yacht?

SYS Yacht Sales

1306 Main Street
Sarasota FL 34236 USA
Phone: 1-941-365-9095

"With over 30 years in the yacht sales industry, we specialize in new and used yachts for sale ranging from 30 to 200+ feet. Experience why our clients say they will never go anywhere else...Experience the SYS Difference!"

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