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Listed at $439,000

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Available for SaleSENTRY70' 1977 Hatteras 

1977 Hatteras 70' Cockpit Motor Yacht

In 2008 New Twin Caterpillar C-18 1015HP Engines and Generators were installed! Fuel efficient power plant! Rare Factory Aft Cockpit with appropriately positioned running gear! Well-maintained and in excellent condition.

26 North Yachts is pleased to assist you in the purchase of this vessel. This boat is centrally listed by United Yacht Sales. 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


LOA: 70' (22 m)
Hull Material: Fiberglass
Fuel Capacity: 1,590 gal (6,019 L)
Fresh Water Capacity: 800 gal (3,029 L)
Holding Tank: 100 gal (379 L)
Flag: United States
Location: Florida, Stuart, United States
Build Year: 1977
Builder: Hatteras
Model: CPMY
Type: Motor Yachts
Cruising Speed: 18 Knots
Max Speed: 23 Knots



SENTRY is an excellent example of this impressive factory 70' Hatteras Cockpit Motoryacht - the layout features a full-width owner's stateroom aft with en-suite Head and Shower, and two guest doubles, each with separate head and shower. Crew accommodations for 2-3 with double berths (one double berth is a convertible Crew dinette) located forward of down Galley, a layout that offers great privacy for Crew, as well as Owners and Guests.

There is a spacious Wheelhouse, a large Dining Room, a well-appointed Galley, an Eisenglass-enclosed Aft Deck, and an open Aft Cockpit. Also, the huge Flybridge offers an entertainment area, with L-Shaped and bench settees, and dinghy crane/hoist, cradle. A magnificent example of this classic profile, the Hatteras 70 CPMY will turn heads in any corner of the world where you may choose to cruise. Of the thirty 70' Hatteras's built, 28 were full flush deck models and two were Cockpit Motoryachts, so SENTRY is very unique. Her running gear is located further aft than if she were an aftermarket cockpit add-on, so she handles much better. And, her modern CAT C-18s, give her tremendous appeal to the owner who wants state-of-the-art power plants.

SENTRY has all the equipment like two gensets and a watermaker to sustain herself for long term on the hook.

Accommodations and Walk-Through

The Eisinglass enclosed Aft Deck offers comfortable seating for eight. Steps on the starboard aft side lead down to the well-designed factory Cockpit, lazarette with two hatches, BBQ station, and transom door and gate leading out to the swim platform. Port and starboard hard wing doors lead to side decks up to the forward deck. The Salon is entered through two varnished swing doors forward of the Aft Deck.

The Salon is appointed with a light brown/blue speckled fabric L-Shaped sofa portside and forward. There is a glass top coffee table, and two brown and blue stripped fabric chairs and ottomans with beige carpeting. Aft is a custom elevated entertainment center and full wet bar with ice maker (not working). There is a curved stairway down to the Staterooms at the aft portside of the Salon.

Forward of the Salon is the Wheelhouse with full lower steering station and electronics. Forward of the Wheelhouse is a Dining Room with a large wood dining table, three chairs and banquette L-Shaped seating, all beneath a custom chandelier and immediately forward of the mirrored bulkhead. The U-Shaped Galley is down and forward to port, with lots of cabinets and all necessary appliances, and is opposite a small office/dinette and laundry area.

Forward of the down-Galley, are the "Crew's Quarters" with a double berth, convertible dinette, and a private Head with stall Shower and lots of Crew storage.

Aft portside of the Salon, down curved stairs below decks, is the full beam Master Stateroom with a queen-sized bed on the centerline and a vanity, 27" TV and a cedar-lined closet to forward and starboard, and a hinged swing down single berth on starboard when needed. There's also an en-suite Head with shower to port with lots of cabinet and drawer storage. There is a full-size door leading to the aft cockpit for those moonlight swims.

Forward of the Master Stateroom, and to port and starboard, are the two Guest Staterooms, each with twin berths, mirrored bulkheads, ample storage and hanging lockers, and both with private Heads with showers.

Entrance to the Flybridge is from the Wheelhouse up a ladder. There are Pompanette helm and companion seats and cushioned Guest benches for 10-12 with storage beneath. The Boston Whaler tender and crane resides for and aft facing on the portside of this large flybridge. Aft in the Flybridge, overlooking the lower cockpit and the transom is a full steering and control station for docking the vessel.


The entranceway to the engine room is under the Galley stairs. There is lots of storage in drawers, cabinets and under-sole lazarette in the Galley.

  • GE Trash Compactor
  • GE (4) burner electric stove top
  • GE Oven
  • GE Convection and Microwave Oven
  • GE Dishwasher
  • Amana Full-size Whirlpool Refrigerator / Freezer / Ice Maker
  • Double Stainless Steel Sink with Disposal
  • Coffee Maker
  • Corian Countertops
  • GE Washer and Dryer (New 2021)

Crew's Quarters:

Forward of the Galley, through a closed door is the large Crews Quarters. There is a convertible Dinette on starboard with six drawers of storage under seats. The table lowers and with filler cushions, makes a large single berth. On port is a double raised berth with four drawers and two huge lockers. To starboard, is a large closet. There is an overhead opening hatch and four opening portholes. The Head with vanity and separate shower is forward.

A/V Entertainment Electronics

  • Crew - DYNEX 19" Flat Sscreen TV and DirecTV Box
  • Main Salon - Sony Bravia 32" Flat Screen and DirecTV Box, Toshiba VHS/DVD player, Yamaha AV Surround Sound Receiver RX-V671, Yamaha cassette player
  • Master Stateroom - DYNEX 19" Flat Screen TV, DirecTV, Sony VHS
  • Toshiba VHF/DVD Player
  • Direct TV Receiver
  • Yamaha natural sound AV receiver RX V385

Navigation Electronics and Equipment


  • Furuno Navnet VX2 (GPS, Plotter, Radar, Depth)
  • Furuno 72-mile Radar
  • Furuno RD30 Wind Speed
  • Navigator Depth Finder
  • Simrad AP25 Autopilot
  • Richie Compass
  • SEA 222 - single side band radio
  • Garmin 7616 Touch Screen
  • SEA 156 VHF
  • Hailer
  • Vetus Bow Thruster Control
  • Naiad Stabilizer Controls
  • Trim Tab Indicators (not working)
  • Carlisle Dual Spotlight Control
  • Richie Compass
  • Triple Kalenberg Horn
  • Remote CAT Engine Controls
  • VHF Standard Horizon Quantum


  • Garmin 7612 Touch
  • Simrad AP27
  • CAT Fly-by-Wire Throttle/Shifter Controls
  • CAT Monitor System
  • NAV NET VX2 (GPS, Plotter, Radar, Depth)
  • DataMarine Digital Depth
  • DataMarine Speed/Distance
  • Vetus Bow Thruster Control
  • Naiad Stabilizer Controls
  • Carlisle Dual Spotlight Control
  • Standard Horizon VHF
  • Triple Kalenberg Horn


  • 220/120 AC volt Power (panel in Wheelhouse)
  • 240 volt Ships Service (panel in Wheelhouse)
  • 24/12 volt DC Ships Service (panel in Wheelhouse)
  • (2) Transformers (panel in Wheelhouse)
  • (2) Phasor 21kW Generators - Port 2,528 Hours; Starboard 2,255 Hours
  • Gen New Hoses 2022
  • Gen Starters Re-Built 2022
  • MagnaSine 4000w Inverter/Charger
  • Magnum Energy Flow Monitor (panel in Wheelhouse)
  • Batteries with parallel switch
  • Charles 40amp Automatic/Manual battery charger
  • (4) Inlets
  • Wave Wi-Fi

Engines and Mechanical

  • 2008 Twin CAT C-18 1015hp each
  • 2,000 Hour Service on engines completed 2021
  • Economical - 3.+ gal per mile at 18 knots 1900 RPM
  • Cruising Speed - 18 knots / 23 knots max.
  • CAT Computer Monitor Screens
  • Port SN: CKH03143 / Starboard SN: CKH03131
  • 2008 ZF Transmissions 2.59:1
  • Electronic Controls with Synchronizers (3 stations)
  • Vetus Bow Thruster
  • Naiad Stabilizers serviced in 2020
  • (6) A/C units
  • (4) Switchable Racor 1000 Fuel Filters
  • SeaRecovery Water Maker 50 GPH / 1200 GPD (currently pickled)
  • (2) 35.5" Nibral Props with 2 Spares
  • Spare 10' Stub Shaft
  • House batteries replaced in 2022
  • Main engine batteries 4×8 D New October 2022
  • Leeson fuel transfer pump
  • Charles ISO Boost Transformers
  • Pro Mariner Pro Sport 20 Battery Charger
  • Rigid Air Compressor
  • JABSCO Extraction Fan
  • A/C Compressors Chemically cleaned 2022
  • Fresh Water Pump New 2022


  • 60# Danforth with 200' 1" rode
  • 60# Bruce with 200' Chain
  • 1,500 lb. Davit
  • Ideal BBHW electric 110v windlass with remote
  • Marquipt boarding ladder
  • Tide Ride Steps
  • Fiberglass Radar Arch
  • Transom Shower
  • Frigibar Fridge/Freezer - Flybridge
  • Cockpit lazarette storage
  • Swim platform with ladder
  • Transom door with gate
  • Windshield washer and wipers
  • Bow Pulpit with rails
  • Spray rails - full hull length
  • Fresh water washdown - (3) Stations
  • Custom FB and Foredeck covers
  • Fenders and Lines
  • (2) FBG Foredeck dunnage boxes with cushions
  • Windshield Covers
  • Varnished Name Boards
  • (2) Carlisle 10" Spotlights
  • Reeve Offshore Commander Liferaft
  • Windshield Covers New 2022
  • Aft Deck Isinglass curtain New 2021
  • Windlass Motor Cover New 2022
  • 1997 15' Boston Whaler Center Console with 2020 Yamaha Outboard (Yamaha Warranty until 2023 - only 15 hours on the Engine)


  • Frigibar refrigerator/freezer with seating pad
  • Seating for 10
  • Solid weather boards
  • Custom Carbon Fiber/Fiberglass Hardtop
  • Fiberglass Arches
  • Opening overhead Hatch - over Helm seat
  • Aft facing Steering Station - Throttle/Shifter, Steering, Bow Thruster
  • 12v Overhead lights
  • New Venturi custom windshield
  • Freshwater washdown

Aft Cockpit

  • Highly varnished teak cap rail
  • (2) 50 amp shore cord input
  • (2) SS cleats
  • (2) Hause pipes
  • Transom door
  • Fiberglass swim platform
  • Doorway to Master Stateroom
  • (4) Fishing rod holders
  • Stairs to upper Aft Deck
  • Custom large fish cutting station table
  • (4) Stainless Custom Fender Holders
  • Portable Propane Grill

Safety and Fire Protection

  • Portable EPIRB in Wheelhouse
  • Fire Extinguishers - (3) Guest Cabins, (1) Crew
  • FireBoy System - engine room
  • Reeve Offshore Commander Liferaft


  • (3) Underwater Lights - Transom
  • Tank Tenders
  • Intercom System
  • Ice Maker - Main Salon (Not Working)
  • Wet Bar - Main Salon
  • Bottom painted 2021 at Cable Marine
  • (3) New Heads are being installed (10/2022)


  • Owner's Personal Property

Mechanical Disclaimer

Engine hours are as of the date of the original listing and are a representation of what the listing broker is told by the owner and/or actual reading of the engine hour meters. The broker cannot guarantee the true hours. It is the responsibility of the purchaser and/or his agent to verify engine hours, warranties implied or otherwise and major overhauls as well as all other representations noted on the listing brochure.


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.

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