INDIANAPOLIS (WISH) — Leaders with Virginia-headquartered Rolls-Royce North America and state officials gathered Thursday at the company’s Indianapolis performance building to celebrate a $1 billion, yearslong investment in Indiana.

Rolls-Royce spent $600 million of the investment to modernize advanced manufacturing sites, a project that finished in 2021. The company used the remaining $400 million to add full engine-test capabilities. Those test cells allow engineers to run a wider range of tests on engines at a l...