Live data from Hacker News

Viewing profile — euler_angles

euler_angles

HN member
Joined
Wed, May 08, 2019, 4:31 PM UTC
HN karma
683
Public activity
144 items

About euler_angles

Aero engineer turned electrical engineer turned rocket scientist turned data scientist turned C++ dev turned systems engineer

Recent public activity

  1. comment
    Comment #42241250

    The J-20 exists in significant numbers, as well. The SU-57 really doesn't.

  2. comment
    Comment #42237352

    The default for an F-35 is to be at something like M=0.9 and altitudes of 20-25kft.

  3. comment
    Comment #42237346

    I didn't work on this effort, I am just in the same circles with a lot of people who did and still do.

  4. comment
    Comment #42237331

    Those are not really F-35 equivalents; they aimed for different points in the design space. Both Russia and China cannot match the US on very low observable technologies, so they h…

  5. comment
    Comment #42236829

    It's mostly a certification issue. There are some hardware changes and integration work that has to be done, but the biggest obstacle is that the certification work is done in and …

  6. comment
    Comment #42236359

    The Gripen is not a dual-capable aircraft, meaning it isn't certified to carry nuclear weapons. This makes it a tough sell to NATO nations who must align themselves to NATO's strat…

  7. comment
    Comment #42236090

    I've worked with quite a few people who were part of the AI effort, and my current boss was the architect for ACE a few years ago. All of those people were painfully aware of the g…

  8. comment
    Comment #42236078

    But it did the most extensive flight test program for anything in history [0]. I worked on this program for years. I do not think a lack of flight testing is the problem. The probl…

  9. comment
    Comment #42235450

    DARPA's Air Combat Evolution program (ACE) began with AIs fighting each other in a simulated environment in a tournament. Then the winning AI fought against a human (USAF Fighter W…

  10. comment
    Comment #39618714

    By the time the signal reaches your GPS receiver, it is below the thermal noise floor of even amazing receivers. But each GPS satellite has a unique pseudo-random code (called a PR…

  11. comment
    Comment #39533512

    I have crossed paths with a lot of bad code. They write it faster than I can fix it.

  12. comment
    Comment #39533408

    The regime of steadily decreasing F-35 prices as new lots are contracted is at an end [0]. With inflation and the cost-overruns on the Tech Refresh 3 upgrade package, we are in a r…

  13. comment
    Comment #39533371

    Deep down I am indeed tait_bryan_angles

  14. comment
    Comment #39533330

    They all came out of a book that anyone can buy called "F-35: From Concept to Cockpit". That book is a compilation of papers presented at an AIAA conference in 2018.

  15. comment
    Comment #39533105

    The F-35 contract was awarded on October 26, 2001. I was in my freshman year of undergrad, 18 years old. I started on the program in August, 2010. I was 26 years old. The program h…

  16. comment
    Comment #39533001

    My own engineering war stories are just that, stories. Any technical information I gave was taken from released sources only. I am extremely conscious of this

  17. comment
    Comment #39532628

    Minor correction, the wire dynamics model was provided by Naval Air Systems Command (NAVAIR), the Navy engineering organization in control of research, development, test, evaluatio…

  18. comment
    Comment #39532219

    I went from doing things like I describe in the blog post, to verifying and validating the most complex electronic warfare simulation the DOD has ever done, to being a developer of…

  19. comment
    Comment #39531818

    I actually still have your personal email address. Expect something from me soon. It took a few years but I work as a developer now (C++, electronic warfare simulator)

  20. comment
    Comment #39531595

    Yes, the tailhook bay is very, very small. We had a primary disconnect in the bay for the instrumentation wiring for our tailhook sensors. Any time we had to get at that disconnect…

  21. comment
    Comment #39531574

    I have not forgotten your user name here, ha. Yep, been a minute. I should hit you up via email.

  22. comment
    Comment #39531250

    As a guy who knows the F-35 and the program pretty well, I think the best Canadian minds on the F-35 are Richard Shimooka with the Macdonald-Laurier Institute, and former CAF and F…

  23. comment
    Comment #39531209

    The CH-46 has been out of US Navy service for 20 years and Marine Corps service for almost 10, just as a program note.

  24. comment
    Comment #39531053

    I abhor war. I believe the only way to secure peace is to be very good at war. That's why I participated in flight testing the F-35, and why I work on electronic warfare simulation…

  25. comment
    Comment #39530823

    For F-35 flight test specifically, nothing comes to mind. Perhaps I'm a victim of the forgetting you mention.