26 February 2014
The A350 XWB flight test aircraft, MSN2 and MSN4, have both taken to the skies above Toulouse, France today for their respective first flights, bringing the total number of A350 XWBs now flying from two to four.

To date, the first two A350 XWB test aircraft to fly, MSN1 and MSN3, have already performed close to 1100 flight test hours out of the programme’s total 2500 hours planned for certification.

See the full article at Airbus