Rotating Detonating Engines Can Enable Practical Hypersonic Planes

That gap is an obvious show stopper and tech should allow us to jump through the Mach Gap.

This may well take us up to atmospheric speeds able to allow coasting up into space itself.  That gap was a real tech barrier akin to the original sonic barrier which stopped us cold for decades.  so this was the ultra sonic barrier.

All good and hopeful since directly from ground to space is obviously better.

Rotating Detonating Engines Can Enable Practical Hypersonic Planes

January 1, 2024 by Brian Wang

The main problem holding back reusable hypersonic planes is that traditional ramjet engines become very inefficient over mach 2 while hypersonic engines do not work well below mach 4. There is the need to solve the hypersonic speed gap between mach 2 and mach 4. Rotating Detonating Engines can be more efficient up to mach 3 and also enable hypersonic engines to work down to mach 3. This can close the gap and enable efficient hypersonic planes.