Complex sentence: The first BelugaXL rolled out of the assembly line on 4 January 2018, unpainted and with no engines, less than 1,000 flight test hours are planned for its certification campaign.
Split into simpler sentences: The first BelugaXL rolled out of the assembly line on 4 January 2018, unpainted and with no engines. Less than 1,000 flight test hours are planned for its certification campaign.