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If they'd had both the computational power AND the numerical modeling approaches/theory that were later developed, e.g., modified method of moments, then the ve
by ThenAsNow 9y ago
If they'd had both the computational power AND the numerical modeling approaches/theory that were later developed, e.g., modified method of moments, then the vehicles would look a lot more like more contemporary "stealth" aircraft, e.g., B-2, JSF, YF-23, etc. Note that it's a lot easier to get an efficient aerodynamic and low observable platform when you can appropriately harness curvature.
If you have enough interest to go beyond these documents that are "web length" and would like to delve into the engineering and programmatic details, I cannot recommend enough the AIAA book "Have Blue and the F-117A: Evolution of the "Stealth Fighter": https://arc.aiaa.org/doi/book/10.2514/4.867958 https://arc.aiaa.org/doi/book/10.2514/4.867958 . It is easily one of the best books out there on the development of an advanced technology / rapid prototyping aircraft, and you'll marvel at how little context any of the usual web length writeups or TV shows actually give you.
- godelmachine 9y ago"Have Blue and the F-117A: Evolution of the Stealth Fighter" I swear to God I'd noted this book in my to-read list today itself. There's no pic attach menu available here, else I would post a snapshot of my to-read list. Apart from that, I had also noted these two - "Area 51 Black Jets A history of the aircraft developed at Groom Lake" "Inside the stealth bomber" Had you had the opportunity to read these two? Thanks for the suggestion.
- ThenAsNow 9y agoI should have given a disclaimer: if you're not a practitioner in the area or not completely interested in the details, "Have Blue and the F-117A" can be in dry in parts. I have not read "Area 51 Black Jets"; title clearly intended for pop appeal, but hopefully it's substantial content. I believe I read "Inside the stealth bomber" about 15 years ago and thought it was decent. Bill Sweetman is one of the better aerospace writers out there, if a bit quick to extrapolate from some data points (makes sense given he's a journalist whose trade is to discuss things about which little info is publicly available). The recommendation for Skunk Works by Rich (I think ghostwritten by Leo Janos who also ghost wrote for Yeager) is also seconded. There also a few choice publications of decent length on the web: "Winning the ATF" by Sherm Mullin, PM for the YF-22: https://www.afa.org/20140207afaorg/publications/michellinstitutepapers https://www.afa.org/20140207afaorg/publications/michellinsti... -> "Winning the ATF" "B-2: Spirit of Innovation" by Rebecca Grant: http://www.northropgrumman.com/Capabilities/B2SpiritBomber/SpiritOfInnovationBook/Pages/default.aspx http://www.northropgrumman.com/Capabilities/B2SpiritBomber/S... Great NASA e-book series: https://www.nasa.gov/connect/ebooks/aeronautics_ebooks_archive_1.html https://www.nasa.gov/connect/ebooks/aeronautics_ebooks_archi... The only potential thing to watch out about the NASA books is that NASA sometimes has a tendency to play up their own contributions to programs that were very joint (e.g., AF/NASA/DARPA and Industry). Small fault to find given that NASA is awesome enough to put these high-quality publications together, employ some really great historians and photographers, and make the pubs freely available. In particular, the F-16XL story ("Elegance in Flight") is one that I'd never seen told with such completeness anywhere else. The X-29, Active Aeroelastic Wing, and Low-Boom Supersonic books are also recommended.
- godelmachine 9y agoMay I ask for full name of Yeager & the books he wrote? I've been studying about Stealth & Aerodynamics on my own for a few years now. So I don't read them just for pop appeal. Went through a few parts of "Have Blue & the F117A" yesterday, and I'm okay with it. Actually I'm excited to read it in it's entirety. Thanks a lot for the detailed elaboration though. Gonna take a look at these books.
- montrose 9y agoI just ordered a copy of this book. Thank you!
- vanattab 9y agoI would also recommend the book "skunk works" written/ghost written by the head of the skunk works during f117 design.
- godelmachine 9y agoLet me guess before I Google. Head of the Skunk Works was Clark "Kelly" Johnson? The Swedish engineer who designed SR71 BlackBird and who could "see through air"? Edit - I'm wrong. The author is Ben R Rich, who is successor to Clark "Kelly" Johnson. Both served as directors of Lockheed Skunk Works.
- ethbro 9y ago> Head of the Skunk Works was Clark "Kelly" Johnson? The Swedish engineer who designed SR71 BlackBird and who could "see through air"? I believe most humans can see through air. Presumably the paraphrase was something more like "see air". ;) As for Skunk Works, it chronicles Ben Rich's involvement in Skunk Works, which spanned 1954 - 1991. Initially as thermodynamist, later as director. It's half about U-2, A-12 / SR-71, F-117 development, and half about how to create, nurture, and sustain a high-performance engineering culture on a budget. Would definitely recommend.