Engineering giant Rolls-Royce is poised to report a record £4bn loss on the back of the recent fall in sterling, just weeks after it was hit with a £671m fine for corruption.

The historic loss is to be reported by the FTSE 100 firm when it announces its full-year results on Tuesday will include a £3.5bn writedown after the pound’s plunge hit the value of investments intended to protect the company against currency fluctuations.

This, combined with the fine, means Rolls is expected to report a pre-tax loss of £4bn, its biggest in its 133-year history, with adjusted profits falling by more than 50pc.

Analysts expect Rolls to deliver underlying revenue of £13.5bn, generating an adjusted pre-tax profit – not including the write-down or other one-off charges – of £687m, compared to £1.4bn in 2015.