From FlightGlobal, February 2022:
During one flight, on 31 January, the SB-1 Defiant demonstrated three capabilities: the ability to fly with one engine; carry a 1,542kg (3,400lb) external sling load at speeds approaching 100kt (185km/h); and ADS-33 Level One flight performance, the Sikorsky-Boeing team says on 17 February. Flight tests took place at Sikorsky’s West Palm Beach, Florida facility.