Complex sentence: The program was launched in 2008 and production of the prototype began in December 2011, it rolled-out on 2 November 2015 and first flew on 5 May 2017 for a planned introduction in 2020.
Split into simpler sentences: The program was launched in 2008 and production of the prototype began in December 2011. It rolled out on 2 November 2015 and first flew on 5 May 2017, for a planned introduction in 2020.