Tech Digest daily roundup: Rolls-Royce electric plane takes maiden flight

Rolls-Royce’s first all-electric plane has completed its maiden flight ahead of a world record attempt later this year.  The Spirit of Innovation’s 15-minute flight took place at the Boscombe Down military testing site on Wednesday, powered by the most “power-dense” battery pack assembled for an aircraft, the company said. Rolls said the 400kW electric powertrain was…