NASA appears to be pulling its SR-71 Blackbird, the fastest production plane ever made, out of retirement as the Trump administration teases its new line of hypersonic surveillance jets — but doubt…
Seeing Blackbird fly again after all these years would be incredible. I’d love to know what NASA has planned for it.
Turbulence at the trans-sonic barrier is one of the most difficult and poorly understood problems in modeling even today - Heisenberg famously said he’d ask god two questions: why relativity, and why turbulence? - and as a result experimental results really are the best way of determining even the base parameters of the behavior of a system under those conditions.
NASA is researching quieter supersonic flight, and I can’t help but think of how the (also Lockheed Martin) X-59:
Has a extreme wing profile/nose, not unlike SR-71:
8700 lbs max doesn’t seem like a lot, are they counting on the parabola for most of the acceleration I wonder?
I think the most likely explanation is something like this, they want data they can’t otherwise get.
Machine learning + fluid dynamics?
Turbulence at the trans-sonic barrier is one of the most difficult and poorly understood problems in modeling even today - Heisenberg famously said he’d ask god two questions: why relativity, and why turbulence? - and as a result experimental results really are the best way of determining even the base parameters of the behavior of a system under those conditions.