(Coprect to loss in par 2)
LONDON, March 11 (Reuters) - British engine-maker Rolls-Royce plunged to a worse than expected 4 billion pound ($5.58 billion) loss in 2020 as the pandemic stopped airlines flying, but stuck to its outlook for 2021.
Rolls-Royce posted an underlying pre-tax loss of 4 billion pounds for last year compared to the 3.1 billion pound loss forecast by analysts. Its cash outflow, the measure most watched by analysts, of 4.2 billion pounds was in line with consensus. ($1 = 0.7175 pounds) (Reporting by Sarah Young; editing by Guy Faulconbridge)