Eight Trent XWB engines–serial numbers 20990 and 20001 through 20007–are being used in Rolls-Royce’s test program. Following are descriptions of the status or goals for each of the eight:
By the end of this month, the manufacturer hopes to complete pass-off tests of Trent XWB 20990, its most highly instrumented flight-test engine ever, ahead of trials aboard the Airbus A380 flying test bed.