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Y55' Mjm 2015

Portsmouth, RI

ASKING PRICE $1,500,000 Watch Price

Yacht Overview

  • Yacht Details 55 ' Mjm 2015
  • Location Portsmouth, RI
  • Engines Volvo
  • Days on MarketInquire
  • Last UpdatedMay 16, 2023
  • Asking Price $1,500,000
  • Cruising Speed
  • Maximum Speed
  • Max Draft 3' 10''

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Y Yacht Description

Y is an outstanding example of the proven and loved MJM 50z. Looked after by a fulltime Captain and maintained by the best boat yards – this 50z will impress even the most discerning yachtsman. Priced to sell immediately as her owner has taken delivery of a larger boat, Y is fully commissioned fresh out of her winter service and ready to cruise. All of her systems are up to date including the 1,000 hr engine service, Pod service, etc.

Yacht Overview

  • Yacht Details 55 ' Mjm 2015
  • Location Portsmouth, RI
  • Engines Volvo
  • Days on MarketInquire
  • Last UpdatedMay 16, 2023
  • Asking Price $1,500,000
  • Cruising Speed
  • Maximum Speed
  • Max Draft 3' 10''


  • Beam: 15'
  • Hull Material: Composite
  • Max Draft: 3' 10''
  • Fuel Tank: 1 x 520|gallon
  • Fresh Water: 1 x 170|gallon
  • Double Berths: 2
  • Cabins: 1
  • Heads: 2

Steering System

Joystick Control

Manufacturer Provided Description

Seakeeper Gyro-Stabilizer is Standard Equipment

Without steadying sails, all powerboats roll...the MJM's less than most due to their low center of gravity. But, the single biggest opportunity for improving comfort afloat on a powerboat is to eliminate rolling. The 50z is the first yacht to offer this leading edge technology as standard equipment. Introduced 5 years ago, over 1,500 Seakeeper units are now in use worldwide, mostly on large custom motoryachts. The Seakeeper resists rather than reacts to the tendency of a boat to roll as it is spinning at 8,000 RPM to create it's stabilizing inertia. The vessel just doesn't roll and seems very solid without any herky-jerky motion.


Extraordinary Fuel Efficiency and Safety

50z fuel efficiency is 0.9 nm/pg at 25 knots. How? The 50z is built lighter and stronger in the USA of pre-preg epoxy, Kevlar, E-Glass and Corecell to exceed ISO Category A Ocean requirements ... the highest reating for seaworthiness issued by IMCI, the International Marine Certification Institute in Brussels. And, its sleek profile and low center of gravity make it more safe, seaworthy and fun to drive.


Easy-to-Operate by Couples

Large boats can be intimidating to operate. But, you can park a 50z solo, thanks to 360° visibility, joystick docking and a single level deck from the wheel aft to cockpit side-opening doors onto a floating dock.


Day-time Privacy for Friends & Family

The MJM 50z offers the best of both worlds: entertaining space for family picnics or cocktail parties on a single level deck.   Plus, hospitable 24/7 staterooms for live-aboard cruising comfort-- not just sleeping cabins belowdecks.

The 50z master cabin includes a desk/dressing table plus easy chair next to a large hull opening port for fresh air and view of the harbor… to read, write, chat on the phone or just have one’s own space.

Hull & Deck

  • Certified ISO CE Mark Category Ocean A certification
  • High Tech composite with e glass, epoxy and Core cell for a high tech strong and light hull
  • Sea lift Hydraulic swim platform with swim ladder
  • Buff colored non skid on decks and swim platform
  • Scandvik hot/cold shower on swim platform

  • Muir Windlass, polished stainless steel anchor
  • Boarding gates, port, starboard and stern 



  • Side boarding doors
  • Bench seating across transom facing forward with two removable chairs 
  • Varnished dining table with cover
  • Seat to starboard facing aft with storage under and controls for engine hatch and Glendenning cable master
  • Amenity with grill
  • Covers for cushions


  • One level with cockpit.  
  • Double Stidd helm and companion seating 
  • Varnished Teak dining table with power pedestal converts to double berth
  • U shaped settee to starboard with table seats 6-8  for dining
  • Huge storage lockers below settees will accommodate bikes and golf clubs
  • Eisenglass windows provide great visibility and the option of opening up the helm deck in nice weather
  • Faux teak sole in helm deck and cockpit
  • Three electric opening windows forward 

Electrical & Plumbing

  • 220 volt AC, 50 amp shore power cord with Glendenning shore power cord system
  • Northern Lights 9 KW generator (1107 hours)
  • Mastervolt Invertor
  • Victron Energy battery charger
  • Central vacuum cleaning system
  • 20-gallon stainless steel hot water heater.
  • 150-gallon polyethylene fresh water capacity
  • General Ecology Seagull IV water purifier
  • 30 gallon holding tank w/macerator discharge.


  • Triple Volvo IPS 600 diesel engines (1060 hours) 
  • 1,000 hour service completed 2022
  • Seakeeper 9 Gyro stabilizing system
  • Marine Air reverse cycle air conditioning (3 zones) 
  • Sealift Hydraulic swim platform



  • Ultra-Leather covered 78x60 island berth
  • Dual hanging lockers
  • Combo desk/dressing table
  • Reading chair & ottoman (2 included for spare seating)
  • Foam backed vinyl headliner & cherry hull siding



  • L Settee forms foot to foot twin berths.
  • Coffee/Dining Table creates 78x59 double berth
  • Hanging Locker accessible through starboard head
  • Large Storage Drawers (3) under Settees
  • Clear Awlgrip gloss-finished teak & holly cabin sole




  • SS galley sink w/Corian cover
  • Stainless Vitrifrigo RF 5.5 cu. ft. 2-drawer fridge
  • Top loading Isotherm freezer
  • Dish drying locker with drain & vent.
  • Ceramic 2-burner electric stove w/pop-up retainers.
  • Convection and microwave oven.



  • Two large heads with shower stalls
  • Dometic 4806 push-button Vacuflush heads (2)
  • Matched glass enclosed showers w/seats (2)




Denison Yacht Sales offers the details of this yacht in good faith but can’t guarantee the accuracy of this information nor warrant the condition of this boat for sale. This yacht for sale is offered subject to prior sale, price change, or withdrawal from that yacht market without notice. Denison Yachting is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Hinckley Yacht Brokerage. She is offered as a convenience by this yacht broker to its clients and is not intended to convey direct representation of a specific yacht for sale.
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