After four tries the Air Force X-51A Waverider test craft finally succeeded in achieving sustained, scramjet-powered, air-breathing hypersonic flight above Mach 5 in its final test flight on May 1.
After four tries the Air Force X-51A Waverider test craft finally succeeded in achieving sustained, scramjet-powered, air-breathing hypersonic flight above Mach 5 in its final test flight on May 1.
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After four tries the Air Force X-51A Waverider test craft finally succeeded in achieving sustained, scramjet-powered, air-breathing hypersonic flight above Mach 5 in its final test flight on May 1.
Readers!
Every February I run a fund-raising drive during my birthday month. This year I celebrate my 72nd birthday, and hope and plan to continue writing and posting on Behind the Black for as long as I am able.
I hope my readers will support this effort. As I did in my November fund-raising drive, I am offering autographed copies of my books for large donations. Donate $250 and you can have a choice of the hardback of either Genesis: the Story of Apollo 8 or Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space. Donate $200 and you can get an autographed paperback copy of either. IMPORTANT! If you donate enough to get a book, please email me separately to tell me which book you want and the address to mail it to.
Please consider supporting my work here at Behind the Black. My analysis of space, politics, and culture, taken from the perspective of an historian, is almost always on the money and ahead of the game. For example, in 2020 I correctly predicted that the COVID panic was unnecessary, that the virus was apparently simply a variation of the flu, that masks were not simply pointless but if worn incorrectly were a health threat, that the lockdowns were a disaster and did nothing to stop the spread of COVID. Every one of those 2020 conclusions has turned out right.
Your help allows me to do this kind of intelligent analysis. I take no advertising or sponsors, so my reporting isn't influenced by donations by established space or drug companies. Instead, I rely entirely on donations and subscriptions from my readers, which gives me the freedom to write what I think, unencumbered by outside influences.
You can support me either by giving a one-time contribution or a regular subscription. There are four ways of doing so:
1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get.
2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation.
3. A Paypal Donation or subscription:
4. Donate by check, payable to Robert Zimmerman and mailed to
Behind The Black
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From the article, it appears the test program did what test programs are supposed to do: identify problems and fix them. The fact that there was a different failure each time suggests that the basic concept and machine are sound, as the fixes amounted to tweaks of the original design. If the Air Force achieved five minutes of sustained hypersonic flight, that’s a landmark achievement. The rest, as they say, is just engineering.
Very very cool.
;)
You are absolutely correct. I didn’t meant to suggest that the previous failures should somehow reflect badly on the engineering. These are test flights, so failures are simply part of the test.
I assume this is mostly under development as an unmanned weapons system of some sort, but hasn’t there been talk of scramjets being used for human flights of some type (either civilian or military) ? I seem to remember something about that…