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Research / Expedition Yacht, Dione Sky (formerly Turmoil), Lying  Western Med.

[ Dione Sky ] Photos ] Layout ] [ Specifications ] Major Refits ] Comments ] Make an Offer ]

Dione Sky 
Major Refits
Make an Offer


This exceptional Expedition Yacht was built by Palmer Johnson in 1996 and has proved her worth having voyaged almost 200,000 trouble free miles including the honour of being the first motor yacht to circumnavigate the North American Continent, unaided, with a successful transit of the North West Passage from East to West in 2001 with her first owner, and at least as far again with her present owner who has done a figure of eight passage around all the Americas north and south.

Dione Sky has now completed a major overhaul of her main engines, using all Caterpillar parts and service personal. The engines have been completely rebuilt along with injectors and turbo's to 'Zero Time' specification. The end result, Dione Sky will have 'Zero hour' engines that are and look as new and guaranteed accordingly. She is now 100% ready for many more exciting voyages.

Expedition Yacht, Dione Sky - Approximate Dimensions

Length Overall 151ft 46m
Waterline Length 136ft 10ins 41.7m
Beam 28ft 11ins 8.8m
Draft 10ft 6ins 3.2m
Engines 2 x Caterpillar 3508 DITA C 820hp diesels
Cruising Speed 12.5knots - at 50% load
Gross Tonnage 499
Range 7000 + Nautical Miles

Deck and Safety Equipment 

2 Maxwell 18000 Windlasses with chain stoppers
2 Maxwell VC 6000 hydraulic warping capstans aft  
2 Pool‐N type fully balanced stockless anchors  
Spare Pool‐N type anchor  
24 mm stud link chain port and starboard  
Mooring lines  
Tender crane  
Port and starboard hydraulic accommodation ladder   
Ships bell  
Clocks, Barometer, thermometer and inclinometer 
Four 25 person RFD life‐rafts MCA approved for offshore use 
FM200 fire suppressant system in the machinery space  
Complete fire detection system  Life rings with light and smoke signals    
SOLAS approved life vests(adult and children)
Safety flares as required by class  
Fire hoses and nozzles as required by class  
Fireman’s axes 
2 Fireman’s suits complete  
Extinguishers as required by class  
Fire fighting equipment in accordance with MCA code classification  for  commercially registered vessels  
International Code Flags and Nautical Publications as required by class  
18 Survival suits  
Safes in owner’s suite and guest accommodations  
Panning security cameras permanently watching entry deck, aft deck,  foremast and machinery spaces with continuous recording to DVR 

Electrical Equipment 

2 Northern Lights Generators, M1066T, 99kw (2010), three‐phase,  four‐wire, 60 cycles 120/208 VAC Split bus system  
Exendis frequency converter for shore power connections    
2 x 100Amps circuit breakers for shore power (1 forward, 1 in Lazarette)  
Dual parallel able 24 VDC System for some electronics and safety equipment  
Automatic Generator and shore power synchronization and load distribution from the engine room    
Custom alarm, monitoring and control system with full operation SCADA units on bridge,  in engine control room and in the crew mess 

Mechanical Equipment & Engine Details 

2 Caterpillar 3508 DITA ‘C’ Diesels, 820hp @ 1300 RPM with  Twin Disc model MG 540  2.58:1 reduction gears  
4 Copeland hermetic compressors for chilled water loop with Aqua Air electronics   
Digital thermostat for A/C controls  
Dual bow thrusters hydraulically operated from the main engines  
2 Naiad/Koopnautic Zero Speed Stabilizers  
2 Alfa Laval Fuel Centrifuges MMB203‐13  
Facet oily water separator 
1 Water Maker Inc reverse osmosis Watermaker, 5 tons per day  
1 Idromar reverse osmosis Watermaker, 5 tons per day  
Sealand vacuum heads, fresh water  
2 Sullair air cooled air compressors with deck connections 
2 Vulkan type RATO 1911 flexible couplings  
2 Aquaprop model HSP‐5N Ni.Al.Br. five‐blade, high skew propellers  
Exalto thrust bearings 
Cunifer sea water piping throughout  
Machinery space fans with frequency controllers for soft starts  
Hydraulic Orbitrol emergency steering station (No Power Required)  
1 Brownie Third Lung dive compressor  
2 forced draught engine room vent fans with variable frequency drives 
Hamann Wassertechnik Type II MSD black water treatment  
1 Diesel oil fired boiler for heating water loop  
3 Domestic hot water heaters  

General Communications Equipment 

VSAT Broadband Data System including Seatel 4006 Antenna with DAC2202 Control Unit and iDirect X5 Modem
Iridium OpenPort Voice/ Data System
Fleet 500 Voice/ Fax/ Data System (Inmarsat BGAN)
Inventica Yachtspot external Wi‐Fi Antenna/ Router  
VoIP adaptor providing 2 Voice/ Fax lines via VSAT  
GMDSS & Safety Communication Equipment  
2 separate complete Thrane and Thrane Inmarsat C Systems  
Sailor 250W DSC MF/HF Radio  
2 Sailor fixed DSC VHFs  
JRC Navtex receiver  
3 x 406 MHz GPS EPIRBS  
1 McMurdo AIS SART 
2 ACR Survival Craft VHFs  
JRC Automatic Identification System  
Furuno FAX‐30 weather fax interfaced with onboard LAN 

 Navigation Equipment  

Alphatron Alpha MinicourseGyro Compass with varioussignal outputs
Cassens & Plath magnetic deck mounted compass with bottom reflecting and electronic pickoff for  Autopilot system and repeaters  
Anschutz Nautopilot D auto pilot #1   
Anschutz Pilotstar D auto pilot #2  
Anschutz steering system with full follow up bridge helm wheel and NFU bridge tiller;  full follow up tillers on bridge wing stations;  emergency steering controls in lazarette and 
separate manual emergency steering system with control from Engine Room Station 
Anschutz rudder angle indicator system with tri‐face indicator on bridge overhead and  panel mounted indicator at Emergency steering station  
Anschutz Nautocourse Gyro/ Magnetic selector with magnetic deviation, variation ;and latitude correction
Anschutz compass repeaters located on main bridge, bridge wings, and emergency steering station  
2 SIMRAD MX510 Professional DGPS  
Furuno RD‐30 Multi Display  
Dual Brooks and Gatehouse Hercules 690 processors with data output to several Full Function Displays,  several 20/20 CD Displays and 4 stylish Analog clock displays in owner’s cabin. 
Inputs from depth transducer, wind speed and direction sensor, flux gate compass, 
and combo speed over water/ water temp transducer
JRC 7 foot 25KW X‐Band Radar Scanner    
JRC 12 foot 30W S‐Band Radar Scanner  
2 individual JRC connecting units with interswitch; 2 individual JRC operating keyboards and  19” Monitors for each scanner  
Furuno FCV‐1150 colour video sounder w/dual frequency (50/200 KHz) and dual transducers
Furuno CH‐250BB Searchlight Sonar w/retractable Sonar Dome using a Furuno Hoist Unit  
Nobletech Max‐Pro World Chart Plotter with stand alone computer and 19” Monitor  
1 x Carlisle and Finch 1000W 20” Searchlight  
2 x Carlisle and Finch 10” Searchlights  
Kahlenberg Triple Airhorn with Fog Signal Timer  
FLIR Infrared Nightvision Camera with helm mounted control and 19” monitor   

 Internal Communications Equipment   

Wired LAN via 24pt Switch and Wireless LAN via 3 Wi‐Fi Routers with Firewalled interface to VSAT,  Iridium Data, Fleet Broadband and External WiFi  
Panasonic Digital Telephone Switch providing internal paging and connection to outside lines  (VoIP, Iridium and Fleet 500) from phones in every room  
3 Rack Mounted Computers (Bridge Communication PC, Navigation PC, Monitoring & Alarms PC) Guest PC and Printer in Library;   Copy/ Print/ Fax Machine in Bridge via Fleet 500 or VoIP
Satellite TV Multiswitch providing TV to Guest and Owner Saloons, Crew Mess and OwnersCabin 
Emergency wind‐up phone for Bridge to Engine Room communication  
Handheld Submersible ICOM VHFs with Charging Rack  
Numerous UPS units throughout the vessel for computers 


Seatel 4004 Satellite TVRO Antenna (with many LNBs), DAC 2200 control unit and  DSC 10 remote touch screen control 
All Guest and Crew Cabins and Gym have CD player and DVD players with monitors  


Two 6.5 Meter Custom Made NAIAD Aluminium RIBs with 260 HP YANMAR (BMW) common  rail Diesel Engines and Hamilton Jet Drives (new in 2010)  

[ Dione Sky ] Photos ] Layout ] [ Specifications ] Major Refits ] Comments ] Make an Offer ]
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For further details or to arrange to view, please contact Adrian  Espin at: - Eastern Yachts 
19 Colne Road, Brightlingsea, Essex, CO7 0DL  Tel: 01206 305 996  or +44 1206 305 996   

or email to:

In this case we are acting as Brokers only. The Owner is not selling in the course of a business. Whilst every care has been taken in their preparation, the correctness of these particulars is not guaranteed. The particulars are intended only as a guide and they do not constitute a term of any contract. A prospective Purchaser is strongly advised to check the particulars and where appropriate at his own expense to employ a qualified Marine Surveyor to carry out a survey and/or to have an engine trial conducted which if conducted by us shall not imply any liability for such engine on our part.  All Content is copyright - All Rights Reserved.