The slave ship Haast U Langzaam completed the voyage after transporting enslaved Africans to Guyana.

Vessel: Haast U Langzaam; flag: Netherlands; rig: Fregat; estimated standardized tonnage: 396. People recorded in connection with the voyage: Captain: Chatelain, Adriaan; Investor: Middelburgsche Commercie Compagnie. The voyage began at Zeeland on 19 November 1770. Principal recorded place where captives were acquired: Malembo (West Central Africa and St Helena). Principal recorded disembarkation place: Essequibo. Recorded outcome: Voyage completed as intended.