The slave ship Fly departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Saint Vincent and the Grenadines.

Vessel: Fly; flag: Great Britain; rig: Sloop; estimated standardized tonnage: 56.3. People recorded in connection with the voyage: Captain: Roberts, John; Investor: Roberts, John; Captain: Roberts, John (Jr); Investor: Roberts, John (Jr); Investor: Bradley, Thomas; Investor: Dumbell, William; Captain: Askew, Jonathan. The voyage began at Liverpool on 31 July 1773. Principal recorded place where captives were acquired: Iles de Los (Sierra Leone). Principal recorded disembarkation place: St Vincent, port unspecified. Recorded outcome: Voyage completed as intended.