British aircraft engine maker Rolls-Royce said Thursday that its net losses more than doubled last year to £3.2 billion, hit by the fallout from the coronavirus pandemic. The loss after tax, equivalent to $4.4 billion or 3.7 billion euros, compared with a loss of £1.3 billion in 2019, Rolls-Royce said. The Covid-19 pandemic had had a "severe impact" on its performance, it added. rfj/bmm