As planned, the first development RJX, G-ORJX (msn E2376), is heading to the US for the second phase of its flight trials, which will focus on performance testing. At first, the RJX will be based at Phoenix Williams Gateway Airport, where high ambient temperatures are common. The airport is also conveniently located near the manufacturing and support base for the Avro RJX’s Honeywell AS977 engines. This stage of the trials is expected to last about two months. Later, the RJX will spend time at the McKinley Climatic Laboratory at Eglin Air Force base in Florida, which has facilities for testing aircraft in environments ranging from minus 540C to plus 740C with 100-mile per hour winds, icing, clouds, rain, and snow. G-ORJX left Woodford on the afternoon of 25 August, with a team of 12 specialists from BAE Systems and Honeywell on board.