Pecker is a key witness in the case against the former US president, who is accused of falsifying business records to cover up hush-money payment
Rolls-Royce, one Britain's best known industrial names, supplies engines for large aircraft such as the Boeing 787 and the Airbus A350.
It is paid by airlines based on how many hours they fly, meaning its earnings will be hit by the collapse in air travel which is expected to last for years.
"This is about adjusting our capacity to meet future demand," Rolls-Royce chief executive Warren East told BBC Radio on Wednesday.
The job losses, equivalent to shedding 17% of its workforce, would help it to make annual cost savings of 1.3 billion pounds ($1.59 billion), and it would also be looking to reduce expenditure elsewhere on plant, property and capital costs.
Rolls-Royce's headquarters are in Derby, England, and about two-thirds of its civil aerospace jobs are based in the United Kingdom, East said, adding that was "probably a good first proxy" of where the jobs were likely to be lost.
Consultations with unions would now get underway, the company said in its statement, with job losses also expected at its central support functions. Rolls-Royce's defence unit would not need to reduce headcount, it added.
About 700 million pounds of the 1.3 billion cost savings would come from the headcount reduction, Rolls said, adding that the cash restructuring costs from cutting the jobs would be about 800 million pounds.
Pecker is a key witness in the case against the former US president, who is accused of falsifying business records to cover up hush-money payment
The oil and gas conglomerate and Fifa, the world governing body, sign major sponsorship agreement
Toomaj Salehi risks being hanged after the conviction on the Shariah charge of "corruption on Earth" by a Revolutionary Court
Aid groups warn any invasion would add to already-catastrophic conditions for Gaza's 2.4 million people
The American they will face Australia and Serbia on July 15 and July 17 as part of their preparation for the Paris Olympic Games
The leaders emphasise that the deal to release the hostages would bring an immediate and prolonged ceasefire in Gaza
Dubai-based Sumit Augustine has had a philosophical approach towards spending
The regional upswing also defies oil production cutbacks