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1995 Mainship Motor Yacht

St Augustine, Florida


They just don’t make boats this nice any more. 

This boat is powered by Twin GM 671 TIB 485hp (with very low hours)  two-stroke turbocharged, inter cooled fresh water cooled marine diesels.  There is a digital depth indicator and an ICOM M125 Marine Transmitter.  Hynautic type throttle controls with dual binnacle style control heads.  Both props are bronze with 1.75' diameter.  Stuffing boxes are packing glands are bronzed compression flange type.   Fuel capacity - 600 gallons for both tanks.

Engine room.  Prior to entering the engine room thru a stand up door is a utility and work room.  Here there is a washer/dryer combination, a work bench with parts storage,  the central vac system and there is a diamond plate floor.  Upon entering the large engine room the generator with sound shield is to the right and the engines are on either side further back.  You can walk around both engines for easy access to work on them.  There is also a diamond plate floor in here. 

Matching Interstate series 8D in aft engine spaces each rated at 1155 CCA. 2 banks in parcel of 1.  1 - 12 volt batteries -  Mastervolt Pro battery charger 12/40/3 electronic type rated for 40A DC output.

 50A 250VAC inlet to port aft and a recent shore power cord 50ft.   

3 cylinder Kohler fuel injected diesel Generator with Yanmar engine 13.5kw 120/240VAC 


  • Anchor Davit
  • Bow Rail - Custom Aluminim
  • Courtesy Lights - Bridge and Deck
  • Deep forward weather decks
  • Dockside water connection
  • Engine instrumentation
  • Molded flybridge steps
  • Flybridge seating for 8+
  • Hatches with screens
  • Radar arch
  • Recessed fire extinguisher
  • Rope locker
  • Swim platform w/ladder & storage
  • Venturi windshield
  • Wet bar
  • Electric Windlass
  • Ample cleats


There are 3 TVs , the master stateroom, the guest stateroom and the salon.  Also in the master stateroom there are twin seats and twin reading lamps.  In both of the staterooms there are two door large cedar lined hanging lockers.  There are two built in dressers in owners stateroom.  The guest stateroom is as nice as the owners also with a gueen bed.  There are carpets throughout the salon, forward and aft cabins. 

  • 4 Zone Reverse-cycle air conditioning throughout - There are 3 Marine Air brand AC units (reverse heat) - one 16,000 BTU and two 12,000 BTU units with digital SMX controls. 
  • Automatic Shower sump pumps
  • Carpeting 
  • Central Vacuum System
  • Color TV/VCR in both Master & Guest staterooms
  • Entertainment center in main salon with Color TV
  • Hanging lockers throughout
  • Office area with Corian desk, custom built, recessed bookshelves and pre-wiring for computer
  • There are two vacu flush heads, with hold tank and two showers. One starboard forward and one starboard aft.  
  • Right in front of the salon is a built in desk with pull up chair.
  • Manuals and records are on the desk of the boat in the salon. 


  • 2 -8D Batteries /Boxes (2) Safety Switches
  • Circiut Breakers (120V & 12V)
  • AC/DC Converter
  • Electric Bilge Pumps w/Auto switch (3)
  • Generator 13.5KW
  • 50AMP 240V Shorepower
  • Interior Lights 12V
  • Interior Lights 120V
  • 120V Water Heaters - 12 gallon capacity - new
  • Separate AC & DC control panels


  • Anchor, chain, line & davit - 85 feet
  • Compass - contest
  • Dual air horns - new
  • Engine alarm system
  • Fire Extinguishers - USCG approved - inspected 4/18
  • Halon System with discharge light
  • Life vest
  • Navigation lights
  • Non-ski surfaces on deck
  • Bronze sea cocks on underwater thru-hulls


  • Aquamet 19 Stainless Steel shafts
  • Bronze struts and rudders
  • Internal & External sea strainers
  • Fuel water separator
  • Hydraulic steering
  • Hydraulic throttles & clutches
  • Hour meters
  • Automatic oil change system connectors
  • Trim tabs
  • Raymarine GPS, DF and speed


The galley is located starboard side salon aft with a galley up configuration.  Double stainless sink, large two door Whirlpool refrigerator/freeze with a 40" vertical clearance to overhead, Tappan microwave, three burner built-in non gimbaled Sea Ward Princess oven. You will also find in the galley a slide out pantry and a new dish washer

  • Stainless steel sink
  • Electric range
  • Microwave /convection oven
  • Cabinetry
  • Corian countertops
  • Full size refrigerator/freezer/icemaker 120v
  • Dishwasher


  • Dock lines
  • Fenders


This will make someone a magnificent boat to own and enjoy.  Where else could you find so much boat for so little money


Basic Boat Info

Price: $169,900
Boat Name: Isla Kay
Make: Mainship
Model: Motor Yacht
Year: 1995
Condition: Used
Category: Power
Construction: Fiberglass


Length: 47 ft
Length Overall: 46'10 ft
Beam: 15'5 ft
Max Draft: 3'10 ft
Displacement: 44,000 lb
Bridge Clearance: 19'6 ft
Cabin Headroom: 6'3 ft
Cabins Count: 2

Engines / Speed

Engines: 2
Engine #1 Specs:
  • Make: Detroit
  • Model: 671
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 485hp
  • Type: Inboard
  • Propeller Type: 3 Blade
  • Year: 1995
  • Engine Hours: 600
  • Engine Location: Port
Engine #2 Specs:
  • Make: Detroit
  • Model: 671
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 485hp
  • Type: Inboard
  • Propeller Type: 3 Blade
  • Year: 1995
  • Engine Hours: 600
  • Engine Location: Starboard
Total Engine Power: 970hp
Cruising Speed: 22 kn
Maximum Speed: 25 kn


Fuel Tanks: 1
Fuel Tank Capacity: 600 gal
Water Tanks: 1
Water Tank Capacity: 200 gal


Heads Count: 2
Drive Type: Direct
Boat Class: Motor Yachts


Rose Ann Points
Atlas Yachts, Inc.


Atlas Yachts, Inc.
Atlas Yachts, Inc. PO 70005, Ste. 119
Fajardo, PR, 00738
Tel:(904) 717-1288

Manufacturer's Description

Most Motor  Yachts are nothing more than high cube boxes styling is second to space, and utility is lost to accommodations.  The New Mainship 47 Motor Yacht breaks the rules.  Now there is a Motor Yacht that not only looks good, it performs well. Performance can be measured in speed, sea keeping abilities and durability.  The Maninship takes performance one step further, Performance is measured on how well these yacht delivers its attributes to you, the owner. 

The Mainship 47 Motor Yacht was designed and engineered without compromise. It is dedication to delivering overall utility to its owner in sumptuous comfort in the standard to which Motor Yachts will aim for in the future. The Mainship design team started with a fresh approach to design this yacht in the way owners want to use their boats not the way most builders want to construction from the keel up, this yacht is dedicated to its owners.

The latest in technology and materials were combined in construct the strongest and most durable yacht afloat.  The marine systems from the trim tabs to the radar arch were systematically thought out, researched and sourced to provide the best in boating.  The machinery spaces were designed and engineered for ease of maintenance and practicality interior layouts follow the functionality of a yacht this size. 

The galley, for example, is aft in the salon, so traffic is kept down and access is maximized. Durable, but elegant, materials are utilized not only in the galley but throughout this yacht. Cherry and Teak, Corian, and brass compliments the rich carpets, fabrics and ultra suede headliners.  Thoughtful touches such as a dishwasher, washer-dryer and complete entertainment center are all standard, as are televisions and VCRs in each stateroom. 

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.
Additional Contact Information

Rose Ann Points

3076 Harbor Drive

St Augustine, FL 32084

Cell: 904-501-1532


Disclaimer This calculator is intended solely for general informational purposes, and to provide a rough estimate based on the information you provide. You should not base your decision on this estimate alone.