147' (44.81m) CHEOY LEE
LOA: 147' (44.81m)
Beam: 30' 2" (9.19m)
Draft: 9' 2" (2.79m)
10 Knots
13 Knots
Location: Florida United States
Year: 2007
Builder: CHEOY LEE
Motor Yacht
Price: $14,450,000 USD
Additional Specifications For DOROTHEA III:
LOA: 147' (44.81m)
Beam: 30' 2" (9.19m)
Max Draft: 9' 2" (2.79m)
Hull Material: Steel
Deck Material: Teak
Range At Cruise: 6000
Range At Max: 3300
Cruising 10 Knots
Max 13 Knots
Int Designer: KCA International / RHD
Ext Designer: Ron Holland
Fuel Capacity: 16114 Gal
Water Capacity: 3698 Gal
Flag: Marshall Islands
Location: Florida, United States
Price: $14,450,000 USD
Delivery/Model Year: 2007
Year Built: 2007
Refit Year: 2021
Builder: CHEOY LEE
Model: Expedition Yacht
Motor Yacht
Engines: 1950 HP,Single, Inboard, Diesel, Caterpillar, 3512B,
Staterooms: 5
Sleeps: 9
Crew Quarters: 5
MCA: Yes
Steel hull, fiberglass superstructure, teak decks
Length Overall (L.O.A.):147.02 feet(44.81 meters)
Beam (molded):30.15 feet(  9.19 meters)
Draft (loaded): 9.15 feet(  2.79 meters)
Tonnage:473 gross
Classification:Lloyds-MCA compliant
Fuel Capacity:16,114 US Gallons(60,998 liters)
Water Capacity:3,698 US Gallons(13,998 liters)
Watermakers:4,000 US Gallons(15,141 liters)
Maximum:13.5 knots
Cruising:12.0 knots3,300 nm
Economical:10.0 knots6,000 nm
Main Engines
Engine Type:• Caterpillar 3512B
Drive:• (1) Propellor 
Generators & Electricity
Output:• 90 kW / 70 kW
Generators:• (2) 90 kW Northern Lights 50 Hz
• (1) 70 kW Northern Lights 50 Hz
Shore Power:• 220/380V/50Hz
Asea Multipower Converter:• 400 V A/C 50 Hz
Air Conditioning
Type:• Marine Air 
Other Machinery
Watermakers:• HEM 
• Spot Zero
Trim Tabs/Stabilizers:• Quantum Zero speed with engine-driven hydraulic from main combined to two 12.5 kW for at anchor stabilization
Bow Thruster:• Schottel SPJ 57 Pump-Jet
Stern Thruster:• Niad Hydraulic 50KW
Sewage System:• Headhunter Tidal Wave (600 gpd)
Communication Systems
SATcom:• (1) Intellian V 100 VSAT KU band
VHF:• (2) Sailor FB 250
• (1) Sailor FB 500
Navigation Systems
Radar:• (1) Furuno S-Band 2137 50 kW radar with 8' Array
• (1) Furuno X Band 2127 25 kW radar with 6' Array
Gyrocompass:• Simrad Lazer Gyro
Laser Plotter:• Tranas Marine ECS Plotter with World folio
Entertainment System:
Owner’s Suite:• (1) 44’’ Samsung TV
• (1) Marantz surround system
• (5) Speakers
• (2) Speakers in master bath 
• Kaleidescape Home Cinema & Theater movie server
VIP Cabins:• (1) 32’’ Samsung TV
• (1) Marantz surround system
• Kaleidescape Home Cinema & Theater movie server
Guest Cabins:• (2) 32’’ Samsung TV in Guest Cabins (1) per cabin
• (1) Marantz surround system
• Kaleidescape Home Cinema & Theater movie server
Crew Lounge:• (1) 45’’ Samsung TV 
• (1) Marantz surround system
• Kaleidescape Home Cinema & Theater movie server
Crew Galley/Mess Equipment
Cooking Equipment:• (1) Burner conduction hot plate
• (1) Hood ventilation
• (1) Microwave
• (1) Refrigerator
• (1) Dishwasher
Laundry Equipment
Main Laundry Equipment:• (2) Miele Professional Series washers
• (2) Miele Professional Series dryers
• (1) Miele Allerwash washer for delicates
Tenders:• 21’ Castoldi Jet Tender
• 16’ Zodiac MDK Tender
Anchor Windlass System:• Maxwell SY22 Hydraulic Windless
Aft Warping Capstans:• Maxwell VC 6000 Hydraulic Capstans
Anchors:• (2) Bruce Type Anchors with TYP 80 Swivels
Boat Crane and Davits:• Nautical Structure EZ 5500 Knuckle Folding Crane with 8.53-meter reach
Passerelle:• Opacmare 6 meter Hydraulic Stern Passarelle
• Opacmare Hydraulic Side Boarding ladder
Security Equipment
CCTV System:• Maxi-Guard PC based system
Cameras:• (8) Alphatron
Monitors:• (3)


DOROTHEA III offers accommodations for up to 9 guests in 5 staterooms plus a gym and sleeps up to 9 crew. She features the ultimate private owner's deck, with stateroom, en suite, and sitting room located on the bridge deck.


  The Owner’s suite consists of the entire bridge deck from the wheelhouse aft. There are two ways to enter the suite, either via the main internal staircase or from the external aft deck up a set of stairs.


Guest VIP Cabin is located below deck featuring a King Size bed, sofa/love seat, vanity, and hanging lockers. There is plenty of natural light through (2) large port lights. The trim work is oak with polished stainless steel hardware and floors are off-white wool carpeting.


Port Guest Cabin Forward features a king-size bed, vanity, hanging lockers, and two large port lights for natural light. The trim work is Oak with polished stainless steel hardware and floors are off-white wool carpeting.


Starboard Guest Cabin Forward features twin berths, vanity, hanging locker, and two large port light for natural light. The trim work is Oak with polished stainless steel and off-white wool carpeting.


The crew spaces were designed by Ron Holland and finished in a Herreshoff style theme much like a classic sailing yacht. The floors and all trim work is teak, the walls are finished in a flat white.


The Captain's cabin is located on the main deck forward of the starboard side guest entrance with private head. Engineer and chef each have their own cabins which share a head. There are two additional cabins forward each with two berths, head, and one pullman berth. All of the cabins have plenty of natural light through large portlights. Each cabin has the Alphatron intercom system which is connected directly to the bridge. The cabins have Clarion stereos with CD player and (2) JBL speakers. The crew heads are also finished in white with teak trim. The countertops and floors are green Avonite.


Designed to explore the world's remote regions while being self-sufficient and leaving a low carbon footprint, DOROTHEA III is a 147’ (45m) expedition yacht that combines timeless design and a luxurious interior. She was built to be reliable and provide the efficiency of a commercial vessel while offering the fascination and freedom of yachting. 


DOROTHEA III has cruised more than 170,000 miles in the past 8 years. She has undergone two major refits - the first in 2011 and the second in 2015 after having completed two Atlantic crossings and South Pacific, North Pacific, and West Coast of North America cruising totaling over 70,000nm. DOROTHEA III recently completed an Atlantic and South America circumnavigation including cruising the fjords of southern Chile and Argentina.


DOROTHEA III is equipped with a single propeller that offers benefits such as 35% less emissions, lower maintenance, and increased safety with two separate engine rooms. She consumes only 26.4 gallons per hour at 10 knots, giving her a range of over 6,000 nautical miles.


DOROTHEA III's hull is constructed of 20-millimeter steel at the keel, 12-millimeter steel going out from the keel, and turning into 8-millimeter steel all the way to the bulwarks. The superstructure is FRP with carbon fiber stiffening in high stress areas.

The owner will consider a partial trade of a smaller yacht, aircraft, or real estate.


Spring/Summer 2021 – Completed at Derecktor’s Shipyard

  • Complete Exterior Repaint
  • Installation of (3) New Generators ( 2-90kw & 1 – 70kw / Northern Lights)
  • Rebuild of Main Engine
  • C-7 Engine Service
  • Complete Inspection of all Sea Valves
  • Installation of New Transom Door
  • Misc. Reef, Re-caulk & Repair of teak decks
  • Installation of New Shore Power Converters
  • Lloyds Compliance & Re-Instatement Surveys
  • Interior Décor Re-Fresh incl. Re-finishing of wood floors & New Appliances
  • Sand Blast of Hull Bottom & application of primer & anti fouling coatings
  • Removal & Inspection of Main Shaft & Variable Pitch Propeller
  • Complete Inspection & Service of Anchor Windlass System & Equipment