The US is preparing to launch its fastest hypersonic jet,

[william]

Capable of reaching speeds that push the limits of modern aviation. Designed with cutting-edge technology, stealth features, and extreme velocity, this jet represents a major leap in military air power.

They're going to try to beat the 71s speed record.

MSN

 

[Publius]

What interesting is this is the first test of the transition from a turbojet engine to a to a ram jet engine.
This is the grail of hypersonic flight.
taking off like a normal jet, transitioning to ram jet, the able to transition back to regular flight and land.
This facilitates many things from no longer single use missiles, mid-air refueling, complicated payload delivery.

Quarterhorse, the Air Force’s Next Hypersonic Aircraft, Has Taken an Epic Leap

The future SR-71 Blackbird successor is on a quest to break the airspeed record.

www.popularmechanics.com

 

[william]

What interesting is this is the first test of the transition from a turbojet engine to a to a ram jet engine.
This is the grail of hypersonic flight.

I agree. That's why I posted. Well, that and the need for speed!

taking off like a normal jet, transitioning to ram jet, the able to transition back to regular flight and land.
This facilitates many things from no longer single use missiles, mid-air refueling, complicated payload delivery.

Quarterhorse, the Air Force’s Next Hypersonic Aircraft, Has Taken an Epic Leap

The future SR-71 Blackbird successor is on a quest to break the airspeed record.

www.popularmechanics.com