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MV Bianca C

MV Bianca C. was a passenger ship and cruise liner that survived an early wartime sinking before later sinking off Grenada in 1961 after an engine-room explosion and fire.

Last updated August 26, 2026

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Overview

MV Bianca C. was a large passenger ship whose history included wartime disruption, several changes of name and ownership, repeated refits, and two separate sinkings. The vessel was constructed during the Second World War at La Ciotat on France’s Mediterranean coast. It was launched in June 1944 under the name Maréchal Pétain, although construction was unfinished. In August of that year, German forces scuttled the incomplete hull at Port de Bouc near Marseille. After being raised, the ship was renamed La Marseillaise and moved to Toulon before returning to La Ciotat for completion and conversion into a cruise vessel. The completed ship entered service in July 1949 and sailed to Yokohama. In 1957 it was sold to the Panamanian Arosa Line and renamed Arosa Sky. The company refurbished the vessel and used it as its flagship. During this period, the ship was also chartered by the American Field Service for student transportation between the United States and Europe, giving it a role beyond conventional commercial cruising. Arosa Line later entered bankruptcy proceedings and was forced to sell the ship in 1959. The buyer was Costa Line, the Italian shipping company also known as Linea C. Costa renamed the vessel Bianca C., making it the second Costa Line ship to carry that name, and refurbished it once more. Under Costa ownership, its principal itinerary connected Italy with La Guaira in Venezuela and included Caribbean ports. The ship therefore operated within the expanding postwar passenger and cruise network linking Europe, North America, and the Caribbean. The vessel’s final voyage began in Naples and was bound for La Guaira. On 22 October 1961, while the ship was stopped off Grenada, an explosion occurred in the engine room during the early morning. One crew member died immediately and eight people were injured. Fire spread through the ship, prompting approximately 700 passengers and crew members to abandon it. Local fishermen and boat owners responded quickly after hearing the explosion, transporting survivors to St. George’s, where temporary medical and relief facilities were organized. Grenada lacked the equipment required to extinguish a fire on a ship of this size. Assistance was requested from the British frigate HMS Londonderry, which was operating in the region. The frigate took about two days to reach Grenada. By then, Bianca C. was burning and beginning to sink in the main anchorage, creating a serious threat to the harbor. A boarding party from Londonderry went onto the damaged vessel to secure a towline. The ship’s anchor lines burned through, leaving the anchors near the entrance to St. George’s harbor. The attempted tow lasted about six hours. Bianca C. was listing to port, and the vessel moved only roughly six kilometers before a squall broke the towline. It then sank rapidly in approximately 50 meters of water, around two kilometers from Grand Anse. The disaster became one of Grenada’s best-known maritime events and later gave the island a major wreck-diving attraction. The wreck remained accessible to divers because its upper sections lay at comparatively shallow depths. In the 1970s, a Trinidadian company salvaged the propellers for scrap. During the late 1980s and early 1990s, divers removed fittings and other parts as souvenirs. In late 1992, the rear third of the wreck separated, accelerating its deterioration. Despite the damage, the wreck remains approximately 180 meters long and has been described as the largest shipwreck in the region. Costa Line donated a bronze Christ of the Abyss statue to Grenada in recognition of the assistance given during the disaster; it stands in the Carenage near St. George’s. The wreck has also received international recognition as a prominent recreational diving site.

History

MV Bianca C. originated as a wartime shipbuilding project at La Ciotat in southern France. It was launched in June 1944 as Maréchal Pétain while still incomplete. In August, German forces scuttled the hull at Port de Bouc near Marseille. The raised hull was renamed La Marseillaise, taken to Toulon, and eventually returned to La Ciotat, where it was completed and refitted for passenger and cruise service. The ship was ready in July 1949 and sailed to Yokohama. Its ownership and identity changed several times during the following decade. In 1957, Arosa Line of Panama purchased the vessel, renamed it Arosa Sky, and made it the company’s flagship after another refit. It was also chartered by the American Field Service to carry students between Europe and the United States. Arosa Line’s financial collapse led to a forced sale in 1959. Costa Line, the Italian operator also known as Linea C, acquired the ship and renamed it Bianca C. The name had previously been used by another Costa vessel. After refurbishment, the liner served routes from Italy to La Guaira in Venezuela, with calls in the Caribbean. Its final voyage departed Naples for La Guaira in October 1961. On 22 October, while the ship was off Grenada, an engine-room explosion started a major fire. One crew member was killed and eight were injured. Around 700 passengers and crew abandoned the ship with assistance from Grenadian fishermen and other local boat owners. Survivors were taken to St. George’s, where emergency medical and welfare arrangements were made. Because local authorities lacked the equipment to fight the fire, the British frigate HMS Londonderry was summoned from Puerto Rico. After arriving roughly two days later, a boarding party attached a towline to the burning ship in an effort to clear the harbor. The vessel’s anchor cables burned through, and the tow began while Bianca C. was listing. The frigate pulled it for approximately six hours, but the ship traveled only about six kilometers before a squall snapped the towline. Bianca C. sank in about 50 meters of water roughly two kilometers from Grand Anse. The wreck later became one of Grenada’s signature dive sites. Its propellers were salvaged in the 1970s, and divers removed fittings and other artifacts during the late 1980s and early 1990s. In late 1992, the stern section separated, accelerating structural decay. At roughly 180 meters long, the wreck remains one of the largest in the region. Costa Line presented Grenada with a bronze Christ of the Abyss statue as a gesture of appreciation for the island’s help during the 1961 rescue. The statue is located in the Carenage at St. George’s. The wreck has also been recognized by The Times as one of the world’s notable wreck-diving sites.

  • 1992

    Structural collapse of the wreck

    [1]

    The rear third of the wreck broke away, contributing to its accelerated deterioration.

  • 1961

    Final sinking off Grenada

    [1]

    An engine-room explosion and fire led to the evacuation and eventual sinking of Bianca C. near Grand Anse after an unsuccessful tow attempt.

  • 1959

    Transfer to Costa Line

    [1]

    Arosa Line’s bankruptcy resulted in the sale of Arosa Sky to Costa Line, which renamed it Bianca C.

  • 1957

    Sale to Arosa Line

    [1]

    The ship was sold to Panama’s Arosa Line, renamed Arosa Sky, refurbished, and designated the company flagship.

  • 1949

    Completion and cruise conversion

    [1]

    Refitting at La Ciotat was completed in July, after which the ship sailed to Yokohama.

  • 1944

    Launch as Maréchal Pétain

    [1]

    The incomplete passenger-ship hull was launched at La Ciotat in June under the name Maréchal Pétain.

  • 1944

    Wartime scuttling and recovery

    [1]

    German forces scuttled the unfinished vessel at Port de Bouc in August. After recovery, it was renamed La Marseillaise.

Products and positioning

A postwar passenger and cruise liner that operated on international routes between Europe, the Caribbean, and Venezuela before becoming a historically significant Grenada shipwreck.

  • Passenger ship · 1944

    MV Bianca C.

    A large postwar passenger and cruise liner operated by Costa Line on routes from Italy to La Guaira, Venezuela, with Caribbean port calls. Before receiving the Bianca C. name, the ship operated as Maréchal Pétain, La Marseillaise, and Arosa Sky. Its commercial life ended when it sank off Grenada in 1961.

Brand decisions

  • 1959

    Costa Line acquires the ship after Arosa Line bankruptcyM&A

    Background

    Arosa Line was forced to sell the vessel after entering bankruptcy proceedings.

    Action taken

    Costa Line purchased the ship, renamed it Bianca C., and refurbished it for its own passenger network.

    Aftermath

    The vessel operated between Italy, the Caribbean, and Venezuela until its loss off Grenada.

  • 1957

    Arosa Line renames and refits the vesselOther

    Background

    Arosa Line acquired the ship during the postwar passenger-shipping era and sought to use it as a flagship.

    Action taken

    The company renamed the vessel Arosa Sky and carried out a further refurbishment.

    Aftermath

    The ship continued international passenger operations and was also used for American Field Service student charters.

Sources1 sources

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