consumer451 17 hours ago

Here is one in flight, very recently.

https://www.youtube.com/watch?v=XRYdpoOakAY

  • dtgriscom 13 hours ago

    Very, very cool. Two things I noticed:

    - This is a real rotary engine, where the pistons and cylinders rotate about the crankshaft, and are attached to the propeller

    - The pilot had to keep a constant down angle on the elevator to keep it flying level; was the C.G. right?

  • jacquesm 16 hours ago

    What an absolutely amazing sight. That turn at 2:30, it's incredible how small the turning radius is, it's going that slow. I could watch that plane soar all day. Thank you for posting this video.

    • consumer451 9 hours ago

      Oh, I just realized why it has that very tight turning radius, but only when turning right.

      It's the gyroscopic procession of the majority of engine's mass spinning, in that crazy rotary (not radial) engine!

      • jacquesm 4 minutes ago

        Yes! Coincidentally I'm working on a project right now that has the exact same issue. It will turn clockwise with great ease and counterclockwise is super hard.

    • consumer451 16 hours ago

      Yes, the turning radius is quite something. It appears that the entire vertical stabilizer is a control surface.

      • jacquesm 16 hours ago

        Re. your other comment about the cardboard plane: Amazing. When I was 9 or so, my friends and me made an 'airplane' in the attic of the house where we lived. We flew it all over the world looking for treasure ;) It's a good thing we didn't see this video or for sure I wouldn't be writing this. That is absolutely amazing what that guy is doing there and to actually attempt to fly is bravery beyond the call of duty. I really hope he succeeds.

        • consumer451 15 hours ago

          Ah cool! I though it might not fit here and did not want to appear to be spamming on this post, so I deleted the comment.

          Here is the video in question for anyone curious:

          https://www.youtube.com/watch?v=CTEYcDU91

          • jacquesm 15 hours ago

            If that's not in the spirit of HN I don't know what would qualify. He's a little bit mad though :) I'm already antsy with a naked 7" spinning near me and he seems to have four 18" within touching distance.

  • sema4hacker 16 hours ago

    I'm surprised the rear end of the fuselage was an open skeleton instead of being covered like the wings and tail. Wouldn't that significantly interfere with the airflow?

    • jacquesm 16 hours ago

      It does, but this airplane is so light that it would also upset the balance, even a little weight that far back has a huge effect on where the center of mass is.

leobg 14 hours ago

It was also two teenagers who, some 50 years earlier, came up with the idea of flying machines and the aerodynamics of wings in the first place:

The brothers Otto and Gustav Lilienthal were watching the storks take flight in the meadows of Mecklenburg in the 1850s. And it made them think, “We could do that, too, if we only had wings like that”.

Of course, Otto died in a crash of one of his motorless flying machines in 1891, I believe. But the Wright brothers saw the eulogy in the paper… and the rest is history.

xeonmc 18 hours ago
jacquesm 17 hours ago

I'm trying to imagine what a bunch of teenagers could do today to get a similar sense of accomplishment. Note that they weren't even doing particularly well at grade school.

  • thechao 16 hours ago

    My greatgrandmother (born in 1891) left grade school in 6th grade for similar reasons. The real reason she was taken out was "money". (This was rural Indiana about 1903.) She finished her own education through what you might call a master's program by studying her brothers' texts. It was an unwise person who assume her lack of formal education meant anything about her intelligence or informal education.

    • jacquesm 16 hours ago

      I have a typing diploma and a driving license so I can relate, though I was born a little bit later.

      • fuzzfactor 14 hours ago

        Well it was far removed from today, but our high school had been built experimentally on runways in the nearby Everglades after the air base had been decommissioned following the Cuban Missile Crisis.

        The pavement was vast in all directions and educational buildings had been placed on or alongside it, all parking was on existing tarmac.

        Anyway, in Mechanical Engineering our senior project was a gyrocopter.

        It was pretty much like somebody had a broken one just sitting around doing nothing, a student brought it in like it was "show & tell" and the decision was made to launch. It didn't come in at the beginning of the year.

        I did graduate a bit early and never did get to see much of the progress.

        • jacquesm 14 hours ago

          That's fascinating. If the high school my sons go to would decide on letting students build an aircraft with the intention of flying it I would be donating tools, but the rest of the parents here would have the school management in court.

          Are there any pictures of this project in your possession?

          • fuzzfactor 10 hours ago

            I wish I had that, but it was pretty much taken in stride.

            We knew we were privileged in many ways while realistically being experimental test subjects in all other courses ourselves, with hindsight even more so than was obvious at the time.

            We gathered around it for a couple weeks and soaked in the awesome challenge, then the curriculum pivoted to studying all about this type of craft because nobody wanted to make a wrong move. Who else had runways to work with? We found out it had been assembled from a kit and might not have had very much flight time if any before getting slightly damaged.

            It was accepted as a multi-year project and the only real work done when I was still there was to straighten out the wheels. Experts were going to be arranged so the restoration would be done like the kit was supposed to be and they were looking for an experienced test pilot.

            Never did find out if it got off the ground, but I still learned a lot just having it where we could check it out in such detail.

  • RobotToaster 12 hours ago

    To be fair building an aeroplane today would still be a pretty good sense of accomplishment, although they'd probably get arrested afterwards.

msuniverse2026 15 hours ago

It is so unfortunate that flying has such a credentialist mafia holding it back from more widespread use. Imagine if motorcycles had even half the regulations to ride as single seater aircraft do. Such a ridiculous state of affairs.

  • tene80i 15 hours ago

    You don’t think there are any noteworthy differences between a motorcycle and an aircraft in the sort of damage it can do and where?

    • AngryData 15 hours ago

      Depends on the aircraft, current ultralights that you don't need to drop $100,000 to get licensed for can only weigh 250 lbs, while motorcycles don't really have a limit and can weight over 1,000 lbs, approaching the weight of a Cessna 152. And when you account for crash scenarios, yeah the rider is at risk in both, but the motorcycle is far more likely to be in and around other people and vehicles during a crash, while a plane is 99% of the time over clear land and even an emergency landing is unlikely to put other people at risk.

      It ain't a perfect comparison, both have problems, but it is far easier to get a license to drive a truck hauling 20+ tons than to get a license to fly a 500 pound plane, and motorcycle licenses is basically a signature and a couple bucks away.

    • msuniverse2026 15 hours ago

      A 200kg Kawasaki H2R can go close to 400kph on a two lane road. It is not going to cause any less damage than a single seater falling out of the sky somewhere randomly.

      • nosianu 14 hours ago

        (I'm a PP-ASEL, earned in and around SF Bay Area air spaces almost three decades ago)

        First, people are more likely to crash during takeoffs and landings, not in the middle of a flight. Second, it's also not just about the damage caused to others, and even if you crash in the middle of nowhere quite a few people will be busy dealing with it - in that case, remoteness is not a good thing but actually more costly. They won't just leave you and the airplane lying at the crash site until nature reclaims it all.

        Furthermore, it is not just the flying itself. If that is what you wanted, the crazy early times of flight would have been for you, when everybody could just do whatever they wanted, wherever they wanted. Much of the learning for the license is the rules and procedures. Air space if very busy! I have small class D airports where there is so much traffic sometimes that I can hardly get a word in to announce myself. This will have the potential for stress and errors long after you got used to the flying itself.

        I can't even begin the shortcuts someone's thinking has to take to think flying and driving should be treated the same.

    • fransje26 15 hours ago

      Some people thought there weren't. They are not here to tell their tale anymore.

  • prmoustache 12 hours ago

    I don't know about other places but it doesn't look that hard and complicated to get a license to fly a sub 300kg aircraft in Europe. I believe we still call them ULM.

    It is even easier to fly a powered paraglider.

  • burnt-resistor 11 hours ago

    Please volunteer then to let inexperienced, unqualified pilots with poorly-maintained vehicles practice flying over your domicile first. This is why flying cars would never and can never work.