Motor yachtCayman Islands flagIMO 8979374
M5
Moored in Saint Lucie.
Signal 1 min ago 27.45810°N, 80.32313°W Destination Fort Pierce
This is M5
M5 is a sloop-rigged super yacht launched in 2003 as Mirabella V. She is the largest single-masted yacht ever built.
Design
M5 has achieved speeds in excess of 19 knots (35 km/h; 22 mph) in 8 1/2 ft seas. To achieve the amenity requirements, a single mast was preferred to other rig types in order to maximize interior volumes in keel-stepped sailing yachts; To achieve the performance requirements, the higher aspect ratio of the single mast sail plan was also preferred in order to provide a better speed potential. A final demand was that the yacht be able to use the harbour at Palm Beach, Florida. This required the use of a lifting keel to reduce draft. Mirabella V was designed by yacht designer Ron Holland. Load and structural calculations of the hull and rig were carried out by Hamble-based firm High Modulus Europe Ltd, (now part of Gurit).
Technical challenges
While vessels of M5's size are typically made from steel or aluminium, an aramid foam core/vinylester sandwich build was chosen to achieve a shorter delivery date, reduced maintenance (regular repainting to inhibit corrosion is not required) and better acoustic thermal insulation. Historically, large yachts were built with more than one mast in order to divide the sail area for easier handling. Today's technologies in spars, rigging, sailmaking, powered winches and electronics enable rigs with larger sail areas, higher aspect ratios, larger loads and simpler handling, allowing Mirabella V to be constructed with the tallest mast and largest jib of any sailing craft ever built at the time.
Construction
Mirabella V was constructed at the former BVT Surface Fleet yard (formerly VT Shipbuilding, formerly Vosper Thornycroft) at its Woolston Yard, Southampton, Hampshire. Luciana Vittoria specified to naval architect Ron Holland her wishes for interior decoration. After changing hands and being rechristened M5, she was handed over for refit to the Pendennis Shipyard in March 2013. She was relaunched in September 2013 with an extended stern and reverse transom, a lighter ballast arrangement and carbon fibre standing rigging.
Recently at sea
At 78 metres, she ranks #107 among the 2,394 yachts tracked by Yacht Tracker. She has not put to sea in the past 30 days. Yacht Tracker has been following her position since October 18, 2026.
Sources: Wikipedia (CC BY-SA 4.0), Wikidata.
Specifications
Design
- Builder
- VT Group
- Delivered
- 2003
- Gross tonnage
- 1,017 GT
- Home port
- Palm Beach
Identification
- MMSI
- 319191100
- IMO
- 8979374
- Call sign
- ZGKN8
Navigation
- Declared destination
- Fort Pierce
- Speed
- 0.0 knots
- Days at sea (30 d)
- 0
- Tracked since
- October 18, 2026
- Last signal
- 1 min ago
Recent port calls
Yachts of similar size
Data broadcast by the vessel via AIS, for information only. Owner or captain? Request removal at contact@yacht-tracker.com.