The Rolls-Royce AE 2100 military turboprop engine on April 12 topped one million hours of service as the power plant for the C-130J Hercules transport. AE 2100-D3 engines power J models flown by the US Air Force, Marine Cops, and Coast Guard as well as the Royal Air Force, the Royal Australian Air Force, the Italian Air Force, and the Royal Danish Air Force.
The Air Force overall reduced its size by 120 aircraft in fiscal year 2021, but kept about the same number of fighter, bomber and attack aircraft, according to data supplied by the service. The F-35 fleet saw the biggest increase while the B-1B bomber fleet saw the largest decline.