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n_ermosh

HN member
Joined
Thu, Mar 24, 2022, 10:12 PM UTC
HN karma
463
Public activity
71 items

About n_ermosh

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Recent public activity

  1. comment
    Comment #41176231

    The control system knows what the rudder should be at all times for coordinated flight in the air, and keeping the nose and ground track aligned when near the ground for landing, p…

  2. comment
    Comment #41176194

    I'd love to chat through your questions directly--feel free to book a call with us through our website (just mention this HN post) and I'm happy to talk through everything

  3. comment
    Comment #41175447

    You can revert to a "direct law" in an emergency should multiple faults occur that reduce the capability of the flight controller. However, there's a question of is that the right …

  4. comment
    Comment #41175059

    I think there's definitely a "tried and true" and "if it aint broke don't fix it" mentality. Combine that with the fear of trying something new in the face of the FAA and regulator…

  5. comment
    Comment #41172664

    Well, not exactly. In case of an engine failure, the system still has power from the batteries to control the actuator and glide the plane (in fact, it will automatically switch to…

  6. comment
    Comment #41172533

    we should talk! We are exploring how to make a subscription model work. It's not possible in an experimental category airplane, but our future models where they can be rented (lega…

  7. comment
    Comment #41172508

    Airhart Sling is just the first step too. yes, it's expensive, but it gets the tech into today's market. Our mission is to scale the market to develop a plane that costs <$100k by …

  8. comment
    Comment #41172461

    There's an interesting dynamic here--we (the industry today) are more okay with flying rickety airplanes from the 70s before flying something built with more modern engineering and…

  9. comment
    Comment #41172425

    fair criticism--I should be more specific than just "green". our first model will still be a gasoline ICE airplane, but we are building a limited number of them to get our tech out…

  10. comment
    Comment #41172378

    yep--we want to reverse that trend. And you are probably right, a lot of those 70s planes still fly today. hopefully we can replace them with better alternatives

  11. comment
    Comment #41172362

    We'll still encourage and require the same proficiency checks that pilots do today. Our hope is that GA pilots will no longer need to do things like train stall recovery. We are mo…

  12. comment
    Comment #41172329

    The core innovation here is the fly-by-wire/simplified control scheme. This doesn't exist in any GA aircraft. As our system has been developed so far, it has negligible impact on t…

  13. comment
    Comment #41172309

    we've definitely thought about that! the force-feedback fly by wire makes it really easy to replicate the feel of flying the real thing very well. What you see outside though will …

  14. comment
    Comment #41172291

    this is definitely more of the "roadster". we will be building a limited number to get it into peoples hands as quickly as possible, with future models being lower cost, more effic…

  15. comment
    Comment #41166624

    We've talked to many and the complexity of flying a plane is a big factor--because the knowledge that if they mess up stick and rudder means they have a high chance of losing contr…

  16. comment
    Comment #41166605

    it is indeed a problem. however, Sling (who we are working with on our first model) is also developing a "Whisper" version of their airplane to make it dramatically quieter ( https…

  17. comment
    Comment #41166554

    > 150kt Cruise, 4h endurance - 400kg "useful" load for pax/luggage @ 4h endurance / batteries - 3-axis AP that'll do coupled approaches + autoland - BRS, FIKI, Oxy/Pressurized - $1…

  18. comment
    Comment #41166537

    > The Ercoupe tried this exact approach in the 30s in one of the big GA booms and it just wasn't borne out. The Ercoupe was a great idea for it's time, but we can do so much more w…

  19. comment
    Comment #41166517

    Today's batteries aren't quite good enough to hit the same performance. But developments in the hybrid electric space look promising. Battery technology is improving though, so in …

  20. comment
    Comment #41166304

    a combination of altitude, commanded descent rate, and commanded airspeed transition the control system from flight to landing, flare and touch down, and into ground control mode.

  21. comment
    Comment #41166269

    Multiple sensors, actively modeling the flight dynamics to detect anomalous sensors/behaviors (i.e. is what we are measuring what we expect to measure), and BRS as a final backup.

  22. comment
    Comment #41166249

    yes I should have mentioned actuators as well. the actuators are internally redundant in terms of computation and power and will fail silent and not move if they disagree. Then, ea…

  23. comment
    Comment #41166222

    The core flight simulator is x-plane with some of our own stuff on top

  24. comment
    Comment #41165783

    we won't want to lower the bar in terms of the pilot's ability to stay safe. But we do want to lower the barrier to entry so that more people can learn to do it, do it safely, and …

  25. comment
    Comment #41165771

    In your case, you do start to approach the point where time-wise it's about equal. But, 30 minutes to your nearest GA airport is on the long side, most people (300M) live within 15…