M/YMadiz in 2007 | |
| History | |
|---|---|
| Name |
|
| Builder | Ailsa Shipbuilding Company,Troon |
| Launched | 1902 |
| Identification | IMO number: 8978356 |
| General characteristics | |
| Length | 181 ft 8 in (55.37 m) over all[1] |
| Beam | 22 ft 5 in (6.83 m)[1] |
| Draught | 13 ft 1 in (3.99 m)[1] |
| Installed power | 2 MTU Mercedes Maybach diesel engines[1] |
| Speed | 11.5 kn (21.3 km/h; 13.2 mph)[2] |
| Capacity | 14[1] |
| Crew | 10[1] |
Madiz is a 55 metre twin screw steel yacht built on theRiver Clyde inScotland, in 1902. In 2006, she broke a record in the shipping industry by being the only ship in the world to be in class "+100A1" withLloyd's Register of Shipping, 100 years after the date of its building.
Madiz was designed byG. L. Watson, and It is the last surviving ship to have been designed by him personally.[3][4] She was built by the Ailsa Shipyard inTroon, Scotland on the Clyde.[4][2]
Madiz is a classic yacht and retains most of her original deck equipment and unique panelling,[5] the original Burma teak on much of the deck and all the deck’s side panelings.[6][7] Cuban mahogany in the original master bedrooms and solid oak paneling in the reception areas.[6][7]
Originally she was powered by two steam engines. These were later replaced by two MTU Mercedes Maybach diesel engines.[4]

The yacht was originally namedTriton and her first owner wasJames Coats.[4] Following his death, she was purchased in 1913 bySir George Bullough, owner of the Scottish island ofRùm. He renamed herRhouma.[8] DuringWorld War I,Rhouma was hired for use as an auxiliary patrol yacht.[4] Between the wars, she was lengthened and had an upper deck of cabins added, and her engines were converted to run on oil fuel.[8]
InWorld War II, she served in theRoyal Navy as the Royal Patrol Yacht,HMS Hiniesta, and was used for calibratinghuff-duff equipment in GB coastal waters. She later transportedKing George VI,Queen Elizabeth andPrincess Elizabeth on a short victory tour.[4]
In 1970 she was bought by Greek businessman Costas Keletseki, who renamed herMadiz and had her extensively rebuilt, restoring the original fittings but also modernizing with a conversion from steam to diesel engines.[9]
In 1989Madiz was used as the primary setting for an episode of the British TV seriesAgatha Christie's Poirot.[10]
Between 2003 and 2006,Madiz underwent another major refit and was re-classed under Lloyd’s Register of Shipping in her original Class of +100A1.[11][12] After Keletsekis died in 2009, the ship was sold and was available for charter.[11] In March 2024Madiz was placed up for sale again.[1]
