Supersonic flight without a sonic boom

[Mofra]

These pictures are incredible:





https://www.news.com.au/technology/...s/news-story/35233fd3d72cbf546021ab08b7b04b02

NASA has long wanted to better understand the finer details of how supersonic shockwaves work in order to design a better and quieter supersonic aircraft.

The space agency has achieved an important milestone in this quest that has been a decade in the making — and the visuals are absolutely stunning.
As part of its research, NASA has captured unprecedented photos it says are the first images of the interaction of shockwaves from two supersonic aircraft in flight.
The pictures show two T-38 supersonic jetliners tearing through the atmosphere and creating sonic shockwaves.

Thanks to some heavy-duty upgrades to their camera technology, NASA scientists could hardly believe what they saw when the images were developed.

 

[Allikat]

That is pretty incredible. The photos are spectacular!

It's not just the reduction in sound that's a huge development here. The original plan for these aircraft was to reduce the energy costs of going supersonic. There's such a huge amount of energy required to go from just under supersonic, to just over, that it's not economically viable for commercial flight. That's why we've been able to fly supersonic for decades, yet the concordes are sitting in museums, and we're still flying in sub-sonic jets like plebs.

 

[Benny78]

It would explain how those triangle ufo's I saw moved at mach 20 speeds without making any sound