The slave ship Spy left the African coast carrying enslaved Africans toward Grenada. About 450 people had been taken aboard.

Vessel: Spy; flag: Great Britain; rig: Ship; estimated standardized tonnage: 337. People recorded in connection with the voyage: Captain: Calvert; Investor: Calvert; Captain: Wilson, Thomas; Investor: Wilson, Thomas; Investor: Camden, William. The voyage began at London on 28 September 1785. Principal recorded place where captives were acquired: Gold Coast, port unspecified. Principal recorded disembarkation place: Grenada, place unspecified. Estimated mortality during the crossing: 4.0%. Recorded outcome: Voyage completed as intended.