Rolls-Royce has formed a strategic partnership with British hypersonic-power experts Reaction Engines and is committing new investment in the company. Rolls-Royce will invest £20 million over the next two years, adding on from an initial equity investment made two years ago. Other investors like BAE Systems, Boeing Horizon-X, and financial institutions could follow. Supersonic and hypersonic flight both have their place in business aviation in the future. Current supersonic business jets in development include the Aerion AS2 and HyperMach SonicStar.