One of the first commercial hypersonic passenger plane being developed is powered entirely by hydrogen. It can carry up to 25 passengers, travel 10,000 km and go Mach 5 utilizing hybrid engine technology.
Sources & Credits:
/ @destinusaero
• The Mighty J58 - The SR-71's Secret P...
• Wall-modeled LES of the flow inside a...
• Hypersonic Engine Test Milestone / @ilovecurrysok
• Rolls-Royce Hydrogen research tests