Earlier quoted context omitted.
The liquid fuels Moller used had much better energy densities than batteries, but it never flew without a tether. The Jetson One claims to have 20 minutes endurance, which is very impressive, but still impractical. I'm not so sure the finish line is within sight yet. This is closer to an ATV than it is to a scooter. It even looks a bit like a Honda Pilot ATV with propellors. It could attract more folks than a traditi…
I had no idea that Honda had first used the name Pilot for an ATV!
Jetson One – Personal Electric Aerial Vehicle
191–200 of 246 posts
Re: Jetson One – Personal Electric Aerial Vehicle
#192Re: Jetson One – Personal Electric Aerial Vehicle
#193Earlier quoted context omitted.
Doesn’t that require a runway?
Some gyros can jump-start, as in pre-spin their rotor fast enough for vertical take off. It would add a bit of complexity but it'll still be relatively simple.
Re: Jetson One – Personal Electric Aerial Vehicle
#194Earlier quoted context omitted.
Moller tried making an actual car-sized vehicle with 2 seats. The Jetson One produced a minimalistic 1 seat vehicle.
yes, kudos to them for bringing it to market ($90k seems almost reasonable for this sort of contraption), but it's a much less ambitious vehicle. the aircar was supposed to cruise at 300 mph with an 800 mi range. this thing maxes out at 63 mph and has twenty minutes of flight time, so only about a 20 mile range. even if I were somehow allowed to do it, the jetson would barely make it from my house to my office.
Re: Jetson One – Personal Electric Aerial Vehicle
#195Very cool, especially the demo video which eventually loaded. Something on their website smells a little whiffy and bovine though: ”[our mission] is to change the way we travel and make the skies available for everyone” Erm. Everyone? I don’t think so. Your mission is to give the 0.1% yet another way to be jerks, only this time with added noise!
> Your mission is to give the 0.1% yet another way to be jerks, only this time with added noise! Imagine having - instead of car-centric cities - personal-aircraft-centric cities.
Re: Jetson One – Personal Electric Aerial Vehicle
#196Earlier quoted context omitted.
Parachutes have a minimum altitude. For standard human chutes, that’s 300 feet (100 meters) or so. Not sure what the ceiling is on this. They don’t have footage of it going too high. You only need to fall 30 feet (10 m), to buy the farm. Less, in many cases (depending on how you fall, and onto what).
Yes. This is why paragliding from hills is more dangerous than regular parachuting from a plane. Your paraglider canopy can collapse due to bad wind or unexpected updrafts at say 40 feet from the ground and you slam into the ground before it recovers. In contrast, when a parachute malfunctions on a freefall deployment, you are often higher than 2000ft, and there is plenty of time to deploy a reserve, fix twisted line…
Credible and reliable data for such comparisons does not exist, unfortunately.
Paragliders who aren't idiots don't spend much time at 40ft AGL in weather conditions that can cause a collapse. And not every low altitude collapse is fatal. Spine compression injury is more likely, and they wear padding on their butt to minimize that (some even have airbags).
For better or worse, the main predictive risk factor in paragliding is personal attitude, and I suspect it's the same in parachuting.
Re: Jetson One – Personal Electric Aerial Vehicle
#197Very cool, especially the demo video which eventually loaded. Something on their website smells a little whiffy and bovine though: ”[our mission] is to change the way we travel and make the skies available for everyone” Erm. Everyone? I don’t think so. Your mission is to give the 0.1% yet another way to be jerks, only this time with added noise!
> Your mission is to give the 0.1% yet another way to be jerks, only this time with added noise! Imagine having - instead of car-centric cities - personal-aircraft-centric cities.
Imagine cities built without any thought given to how people who don’t have their own aircar will get around. Roads can be used by foot or cycle traffic. Some places might be completely cut off from the outside world except for air traffic.
Imagine buildings towering high into the sky, tiny aircraft vying for ways in and out of the landing bays that pepper the building’s sides like holes in a tree full of birds.
Imagine a significant portion of these aircraft shrieking their way over your head are piloted by people who are badly trained, drunk, arrogant assholes, or otherwise uncaring of the rules of the road. Imagine some of these people have disabled the sophisticated collision-avoidance methods the law would surely require - maybe because it broke in their old aircar and they can’t afford to get it fixed/replaced, but can afford an illegal workaround; maybe because a business can get just enough profit to feel like it’s worth the risk and fines, maybe because they are bored teenagers playing chicken. Imagine two air cars crashing near their flight ceiling, right above a busy convergence of routes. Or above the tower you live in.
Imagine aircars maintained to the standards of personal vehicles, rather than expensive airplanes. Imagine the equivalent of a rust-bucket with several dents, a fender held on by wire, and one wheel running on a spare. Imagine the shittiest thing you’ve seen on the freeway, translated to the air.
Re: Jetson One – Personal Electric Aerial Vehicle
#198I wonder why the rotors are positioned so low. Should a propeller get fractured, the splinters would hit the pilot's chest and neck. OTOH putting the propellers above would change the shape and thus the aesthetics seriously.
Not to mention that having the center of lift above the center of gravity gives you some dynamic stability for free. This approach is the opposite.
Re: Jetson One – Personal Electric Aerial Vehicle
#199I am incredibly excited about the prospect of small flying machines. I also can not imagine that propellers will be where this ends although there are limitations with using electric energy.
There are quite a few concepts flying around these days:
Re: Jetson One – Personal Electric Aerial Vehicle
#200Earlier quoted context omitted.
I saw that video some days ago and thought "that would be a nifty way to get to work and back" ... 12 minutes flight time would actually allow that for me ... but not for a lot of others.
12 minutes endurance is absolute madness to any pilot. No way to fly this thing within the current regulations. A fuel powered aircraft needs to land with a legal minimum fuel reserve of 30 minutes when flying visually (good weather only), in worse weather it's 45 minutes + the time it takes to get to an alternate airport in case of problems at the destination. So usually 1 to 1.5 hour of reserve/alternate fuel on to…
I have some experience with visual inspection of aerial optical fiber. You can rent a very large and expensive helicopter to fly uncomfortably close to swaying fiber and power lines, or fly this thing up and down the line.
There's also a lot of money in visual inspection of power lines. Not in California, LOL, where they just let it burn, but in better areas, when trees or vines get too close to the power lines, even during droughts, they trim them rather than letting them catch fire and burn off. But I live in a civilized area far from the coasts LOL.
I imagine this will get militarized and police-militarized very quickly. Thirty seconds before kicking the door in over unpaid library fines or writing the wrong politics on twitter, fly the plane over the building and look in all the windows and make some decisions about letting the team kick the door in, or land the plane on the roof or try to find the best vantage point to observe or illuminate the situation. In 12 minutes everyone in the house or everyone in the swat team will be dead, one way or the other. Might be good for last minute verification its the correct house, not that there's ever any punishment for shooting the wrong people, in either military or civilian or militarized police situations.
I suspect there are entire classes of non-tactical military-type use. Aircraft crashes next to the aircraft carrier, a few minutes/seconds of nearly instantly arriving and hovering over the pilot will help the "real" helicopters and rescue crews find the pilot. A human piloted electric drone could hover over a pilot before a turbine helicopter finishes spinning up the rotor... Its not powerful enough to lift people in a rescue situation but is strong enough to drop lightweight supplies.
There are some limited situations where a human being on site making judgement calls is safer and more efficient than a pre-programmed drone or a human very far away and uncoordinated with the folks on site.
I suspect battlefield communications is in a stage much like anti-aircraft defense in Vietnam in the early days, before surface to air missiles existed. I think the USA, and probably the world, has seen the last battlefield of total emcom superiority. In 2030 trying to fly a FPV observation drone will just get automatic counterbattery fire on both the drone and operator, on both sides, etc. The days of you just freely transmit are over. The land battlefield is going to look a lot more like naval sonar situation where if you active sonar ping you get blown up by someone you never even hear. So everyone's got a radio and blue force tracker and all that is kinda over now.