Hersteller eines Detonations-Staustrahltriebwerks sagen, ein Test in 20.000 Metern Höhe und einer Geschwindigkeit von Mach 4 (5.000 km/h – 3.100 mph) sei erfolgreich gewesen, und sie wollen, dass das Triebwerk in einer neuen Klasse von Verkehrsflugzeugen eingesetzt wird, die sie bereits testen kann mit dieser Geschwindigkeit fahren.
https://newatlas.com/aircraft/space-transportation-mach-4-ramjet-detonation-engine-success/
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Submission statement
This technology isn’t new, it’s been tested in various forms around the world for decades. However adapting it to a feasible commercial airliner is still a tall order.
Although details appear to be still under wraps, a Chinese company claims it has also successfully tested the airframe that would go with such an airliner using a ramjet engine. The same company says it [“aims to have a full-sized supersonic passenger jet ready for its maiden flight in 2027.”](https://www.scmp.com/news/china/science/article/3284206/chinese-plane-designed-travel-twice-fast-concorde-completes-test-flight)
The problem is the same problem as always.
Is it efficient?
Are there routes it can fly where the loud as fuck sonic booms don’t matter?