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Notices by Account: Aviation (avia@mu.zaitcev.nu)

  1. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Friday, 19-Apr-2024 12:41:32 JST Account: Aviation Account: Aviation
    in reply to
    • Louis Ingenthron
    @LouisIngenthron I'm tempted to ask what's wrong with you Sir
    In conversation about 7 months ago from mu.zaitcev.nu permalink
  2. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Wednesday, 27-Mar-2024 00:39:50 JST Account: Aviation Account: Aviation
    in reply to
    • 受不了包
    @shibao What is?
    In conversation about 8 months ago from mu.zaitcev.nu permalink
  3. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Wednesday, 27-Mar-2024 00:07:14 JST Account: Aviation Account: Aviation
    https://spacenews.com/boeing-sues-virgin-galactic-over-mothership-project/

    Boeing is suing Virgin Galactic
    In conversation about 8 months ago from mu.zaitcev.nu permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: spacenews.com
      Boeing sues Virgin Galactic over mothership project
      from Jeff Foust
      Boeing and a subsidiary have filed suit against Virgin Galactic, alleging that the suborbital spaceflight company has refused to pay more than $25 million.
  4. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Sunday, 03-Mar-2024 07:20:39 JST Account: Aviation Account: Aviation
    Autogyros at Stephensville, Texas today. The area including KSEP and 9F0 (Dublin) is teeming with them. Dublin even has a 94UL for Rotax fliers.

    #flying #aviation #texas
    In conversation about 9 months ago from mu.zaitcev.nu permalink

    Attachments


    1. https://mu.zaitcev.nu/media/9763397d28b4885f59a76dc67cdb71f30764c8549a3cf3e283a39075128e8f82.jpg
  5. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Friday, 05-Jan-2024 05:27:45 JST Account: Aviation Account: Aviation
    in reply to
    • Sexy Moon
    • bronze
    @Moon @bronze
    I'm afraid that airplanes are not as well protected as they should be. In particular, the now ubiqutous flight management connectivity is a serious weak link. Every pilot must carry a tablet nowadays. By cracking that tablet, one can get into the app like Jepp, and jump to a navigator. On a plane that has Garmin Autoland it's basically a direct access to flight controls. In a world where Israelis were able to jump air gapped systems and infect PLCs in order to blow up Uranium refinement centrifuges, crashing airliners should be easy, it's just nobody got around to doing it. Crashing my own airplane this way might be harder, because its engine and flight controls are not computerized, but one can for example direct me to nowhere and make me get lost and run out of fuel by screwing with the navigation software (theoretically speaking, of course - I mostly fly VFR).
    In conversation about 11 months ago from mu.zaitcev.nu permalink
  6. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Saturday, 09-Dec-2023 10:32:41 JST Account: Aviation Account: Aviation
    https://twitter.com/AJ_FI/status/1733277584895488226

    Another Chinese launcher comes online. Where do they find payloads? China launches about as much as Elon Musk, but the latter has Starlink.
    In conversation about a year ago from mu.zaitcev.nu permalink

    Attachments


  7. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Sunday, 26-Nov-2023 07:45:28 JST Account: Aviation Account: Aviation
    in reply to
    • triodug
    @triodug I think the square protrusion on the tail clinched it. Some Albatrosses have short noses, and some are long, but not this tail.
    In conversation about a year ago from mu.zaitcev.nu permalink
  8. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Monday, 30-Oct-2023 00:49:23 JST Account: Aviation Account: Aviation
    in reply to
    • Sexy Moon
    • pwm
    @Moon @pwm You don't need anything beyond a tiny stick and a ground plane for 1090ES.

    Wavelength is: 299792458/1090000000 = 0.275 m. Quarter is 6.9 cm or 2.7". Four wires are perfect for a ground plane, you just bend them to match to the impedance of your coax or receiver. Usually it's 50 Ohm, so something like 43 degrees. That's all! I soldered mine to the actual connector and used it indoor on top of the receiver in a USB stand. See this photo:
    https://zaitcev.livejournal.com/226449.html

    In fact, don't even do that. Just take a wire from an Ethernet cable, cut to under 3 inch, plug it into the receiver with the connector upright. The receiver itself provides the ground plane.

    The reason why this works is that airplane transponders are absurdly powerful. For example, my Garmin 333 is rated for 250 Watts. Not micro- or milli-watts. Watts! If your cellphone output that, it'd cook your brain in a minute.

    So stop thinking about unnecessary complexities and focus on the whole system.
    In conversation about a year ago from mu.zaitcev.nu permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: www.zaitcev.us
      UAT on RTL-SDR update
      About a year ago, when I started playing with ADS-B over 1090ES , I noticed that small airplanes heavily favour UAT in 978 MHz, because it's cheaper. For the purposes of independent on-board traffic, thus, it would be important to tap directly into UAT. If I mingle with airliners and their 1090ES,…
  9. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Saturday, 30-Sep-2023 05:24:03 JST Account: Aviation Account: Aviation
    • 受不了包
    @shibao Flying a "technically advanced" airplane is the closest you'll ever get to a Gundam.
    In conversation about a year ago from mu.zaitcev.nu permalink
  10. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Monday, 07-Aug-2023 03:09:10 JST Account: Aviation Account: Aviation
    blink(1)
    In conversation about a year ago from mu.zaitcev.nu permalink

    Attachments


  11. Embed this notice
    Account: Aviation (avia@mu.zaitcev.nu)'s status on Tuesday, 06-Jun-2023 06:19:48 JST Account: Aviation Account: Aviation
    • 受不了包
    @shibao Looks pretty brutal for 3.5 hours of this. Looks like a checkride for something.
    In conversation Tuesday, 06-Jun-2023 06:19:48 JST from mu.zaitcev.nu permalink

User actions

    Account: Aviation

    Account: Aviation

    Magnificent Men (Flying, Aviation, Spaceflight)

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          User ID
          134556
          Member since
          5 Jun 2023
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