The slave ship Alcyon departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Haiti.

Vessel: Alcyon; flag: France; estimated standardized tonnage: 272.3. People recorded in connection with the voyage: Investor: Briand des Huperies; Captain: Le Gentil, Louis. The voyage began at Saint-Malo on 27 December 1742. Principal recorded place where captives were acquired: Cabinda (West Central Africa and St Helena). Principal recorded disembarkation place: Cap Français. Recorded duration of the captives' Atlantic crossing: 68 days. Estimated mortality during the crossing: 2.0%. Recorded outcome: Voyage completed as intended.