The Rolls-Royce M250-C47E helicopter engine is displayed during the 2018 International Helicopter Industry Exhibition at the Las Vegas Convention Center on Tuesday, Feb. 27, 2018, in Las Vegas. (B …

The Rolls-Royce M250-C47E helicopter engine is displayed during the 2018 International Helicopter Industry Exhibition at the Las Vegas Convention Center on Tuesday, Feb. 27, 2018, in Las Vegas. (Bizuayehu Tesfaye/Las Vegas Review-Journal) @bizutesfaye