British Start-Up Tests Flying Saucers
Sabre Runner writes to mention that a new British start-up, Aesir, has acquired the assets of a defunct drone company and is working on evolving a working model from several prototypes of "flying saucer" drones. "Aesir's first prototype, named 'Embler' [...] demonstrates the so-called 'Coanda effect,' where air speeds up as it 'sticks' to a curved surface. Aesir's drones take advantage of the Coanda effect to direct air down, away from the drone, boosting lift. Aesir doesn't appear to have any paying customers yet — and is reportedly bankrolled by a single investor."
Aesir doesn't appear to have any paying customers yet -- and is reportedly bankrolled by a single investor
CSG?
reportedly bankrolled by a single investor
...until he's finally extradited to the US.
My webcomic
It looks really fake is all I can think. I know it's real but the speed of takeoff and whatnot makes it look fake.
I can see a lot of military and spying technology resulting from this. Dependent on how quiet it is and how much it can lift and how long it can fly anyhow. Other than that, they could at least corner the market on hobbyists and children's toys.
So assuming it's for real, how do they cancel the spin?
Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
I For one Say farewell to the aliens new overlords.
"i lost my dignity on a slippery wiener"
Didn't we learn back in the late 1950's that the flying saucer design using the Coanda effect is doomed to fail?
http://www.abovetopsecret.com/forum/thread449104/pg1#pid6464036
It's hard to make a more efficient rotor, and it's hard to make a duct light weight at large enough sizes to compete on power. So, unless I'm missing something these guys are using the same petrol/kerosine/lipo power sources as everyone else, except with higher power consumption. It's the same problem quadrotors and jet VTOLs have - they simply can't compete with helicopters on hover efficiency.
That's bad news for startups, though, because the helicopter space is already crowded with heavy hitters like Sikorski and the like.
Where does this leave UAVs? It leaves us with incremental improvements (my PhD involved making freaky aeroelastic UAV rotors that were fiercly optimised for the hover regime, just to squeeze out more flight time) with no real long-term flight performance in sight.
Why do these start-ups appear and disappear so quickly? Because they're trying to 'solve' a hard laws-of-physics style problem that isn't bounded by UAV technology, but rather power technology.
YIAAUHETYVM (Yes I Am A UAV Helicopter Engineer, Thank You Very Much)
Scientists point out problems, engineers fix them
altslashdot.org: The future of slashdot.
If nothing else, maybe they can appeal to the RC hobby community.
It's only a model.
Sig this!
Let me be the first to say, I for one welcome our new flying saucer overlords. =P
I regret that I only have one mod point to give per post.
What's the good reason why I have never once added a tag to a story, refreshed the main page, and then seen my tag in place? Serious question. Does this happen to anyone else?
It can't be because several people have to choose a tag before it actually shows up. I have seen far too many unique or unusal tags for this to be plausible.
Mods, please note that I marked the subject of this post as Off-topic and that there's not really anywhere else I can ask this and get a good answer as to whether other regular Slashdot users have the same experience. Please have some leniency on me for that, it is not my intent to disrupt the discussion.
Some title - quick parsing of it threw up an uncaught exception in the brain.
Fuck systemd. Fuck Redhat. Fuck Soylent, too. Wait, scratch the last one.
How does this differ from the Moller Aerobot?
Looks a lot like:
http://www.dailymail.co.uk/sciencetech/article-447317/The-flying-saucer-snapped-US-army.html;jsessionid=646AE8D297BA42F4A5BDDD6223D5FA58
from the slashdot story back in 2007:
http://science.slashdot.org/story/07/04/09/1723218/Combined-Hovercraft-and-Helicopter?art_pos=4
In fact, the 'first' prototype looks like the prototype from 2007 (even the same yellow body!!)
Atlas stands on the earth and carries the celestial sphere on his shoulders.
Hell does this video cry out loud *fake*. And even bad fake. The composing sucks. Guess every beginner at composing could do better work.
I thought Aesir corporation was busy making and distributing Valkyr...
Alright, Ahmadinejad. Give up the nukes, or we send in the Flying Roombas of Death to clean house.
I've got one of these. Made in china RC flying saucer type thing. Okay it's smaller and the shell is made of polystyrene, but apart from lack of steering it doesn't seem much different to me?
Frequent get rich quick scheme: seek millions in venture capital funding for a new product based on secret technology (vaporware), pay onesself handsomely for as long as possible while trying to appear like you're ALMOST ready to disclose the new technology and release a product.
Search for "Nazi flying saucer" brings up many hits to an alleged WWII research program claiming that NASA was created by ex-Nazi Scientists. Do-do-do-do-do-do-do-do!
Aesir doesn't appear to have any paying customers yet â" and is reportedly bankrolled by a single investor.
John Bigboote
CEO/CFO Yoyodyne Corporation Intl
1938 Yoyodyne Way, Lot 49
San Narciso, CA 92129-3064
[End Of Line]
My world was a spinning jumble of images, burned into the core of my mind. Valkyr was bad news, sending you sky-high for a psychedelic ride on flying saucers.
Aesir was the darling of the stock market, but I knew the saucer stink would stick to those at the top. I'd pay them a visit, and bring their flying saucer crashing back to earth.
Michael Coyne
http://turthalion.blogspot.com
Actually, we Brits have been building the world's flying saucers since the 1950s: http://en.wikipedia.org/wiki/Flying_Bedstead
There were always rumours about something based on this flying around, near London, in the late 1950s. I remember our neighbours calling us into the garden to watch something that, by then, was distinguishable in deep detail.
On y va, qui mal y pense!
The point of the Coanda effect is NOT that the flow speeds up. Rather, and as Wikipedia correctly points out, the point of the Coanda effect is that the flow stays attached to the curved surface, which allows you to redirect it...
The CoandÄf effect is the tendency of a fluid jet to stay attached to an adjacent curved surface of a specific radius. The principle was named after Romanian aerodynamics pioneer Henri CoandÄf, who was the first to recognize the practical application of the phenomenon in aircraft development.
FYI, the Coanda effect is what makes leafless gutter systems work. It allows the water to turn the corner and enter the gutter while the leaves shoot over the side.
Here's a link to a YouTube video that shows a STOL (Short TakeOff and Landing) aicraft called the QSRA that could takeoff from and land on an aircraft carrier without the use of arresting gear and catapults through the use of the Coanda effect.
http://www.youtube.com/watch?v=k_eDutgh4IU
I've seen some RC Coanda models before. The concept is very interesting, but unfortunately any attempted design based on the principle runs into a lot of problems. The main issue I've seen with the RC models is slow turning, and very steep listing to either side on turns.
I know virtually nothing about aeronautics, but I've only just finished reading about how apparently this idea was studied for close to 20 years by people who are experts, and in the end they couldn't produce a working craft out of it. That tells me that there are obviously some almost intractable problems.
I've wanted one of these things since the 1970s, but I could never sell quite enough subscriptions to Grit magazine or American Seed packets to earn one.