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  1. J

    $10 gallon Avgas

    Re "nobody has said they're interchangeable". GAMI has said that they are 'fully fungible,' both in the aircraft and in infrastructure. You can mix G100L and 100LL at will. See: https://gami.com/g100ul/GAMI_Q_and_A.pdf From the pdf: Q: Are there any known material compatibility issues in...
  2. J

    The concept of a flying car will eventually succeed

    In the US, it’s first to file as well. However, that doesn’t mean you can patent something that’s already displayed in public. If two people invent the same thing independently, and one of them puts it out in public before anyone has patented it, the other will generally lose their ability to...
  3. J

    Eviation Alice

    I have no knowledge of this situation other than what I can read on the internet, but it seems plausible to me that companies who are “buying” these electric aircraft (including e-vtols) are not actually putting real money down to buy them. They’re probably only lending their credibility to the...
  4. J

    Eviation Alice

    I did a bit of a dive on this a while back (when it still had the wing tip motors). At the time, what stood out to me was the airframe mass fraction - take a selection of comparable aircraft and remove payload, fuel/batteries, and engine/motor weight and you’re left with the airframe. The Alice...
  5. J

    A-- Hat drone owner/pilot

    You're right that if this is the statutory limit, then it's not much of a deterrent. But, it looks like he actually could have been given a year in jail, and as it was got a year of probation on top of the $500 fine. The judicial system isn't required to throw the maximum penalty at people for...
  6. J

    A-- Hat drone owner/pilot

    You're quite right - I had remembered the end of the video where it looks like the helicopter and drone cross altitudes. That does imply the drone was very likely to be above the grid altitude limits. That's not necessarily illegal, but a waiver for that altitude would come with additional...
  7. J

    A-- Hat drone owner/pilot

    A couple of points: 1) The helicopter was hovering mostly about 600', but as low as about 400' near the YouFit (the altitude resolution on FlightRadar looks to be about 100'). See screenshot from FlightRadar24 below. Since the video of the drone was below the helicopter, it's possible that the...
  8. J

    Homemade Autopilot with a Raspberry/computer

    As someone who works in the UAV world and flys manned aircraft for fun, wrapping my head around the differences between a UAV autopilot and a manned autopilot took some effort... When a UAV engineer says autopilot, they mean all the things that kubark42 means. Push buttons, fly airplane. When...
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