A supersonictransport (SST) or a supersonic airliner is a civilian supersonic aircraft designed to transport passengers at speeds greater than the speed
of Understanding with Rolls-Royce" (Press release). Virgin Galactic. Aug 3, 2020. Ken Vandruf (September 27, 2004). "Supersonic business jet announcement
Rolls-Royce Holdings plc is a British multinational aerospace and defence company incorporated in February 2011. The company owns Rolls-Royce, a business