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US Air Force's 1950s Supersonic Flying Saucer Declassified

MrSeb writes "Tighten the strap on your tinfoil hat: Recently declassified documents show that the US Air Force was working on, and perhaps had already built, a supersonic flying saucer in 1956. The aircraft, which had the code name Project 1794, was developed by the USAF and Avro Canada in the 1950s. One declassified memo, which seems to be the conclusion of initial research and prototyping, says that Project 1794 is a flying saucer capable of 'between Mach 3 and Mach 4,' (2,300-3,000 mph) a service ceiling of over 100,000 feet (30,500m), and a range of around 1,000 nautical miles (1,150mi, 1850km). According to declassified cutaway diagrams, the supersonic flying saucer would propel itself by rotating an outer disk at very high speed, taking advantage of the Coand effect. Maneuvering would be accomplished by using small shutters on the edge of the disc (similar to ailerons on a winged aircraft). Power would be provided by jet turbines. According to the cutaway diagrams, the entire thing would even be capable of vertical takeoff and landing (VTOL). The fact that there are no disc-shaped aircraft in the skies today, though, suggests that the USAF's flying saucer efforts probably never got past the prototype stage."

64 of 300 comments (clear)

  1. so all those people weren't crazy by alen · · Score: 4, Interesting

    the photos look just like some of the descriptions from the last few decades. probably explains the lights too. if its US Government then they have to follow most of their own laws and put lights on an aircraft so others can see it

    why would aliens put flashing lights on an interstellar space craft? what is the point of glass and flashing lights in space other than to be broken by tiny particles

    1. Re:so all those people weren't crazy by ByOhTek · · Score: 5, Interesting

      You assume they'd use glass. You also assume that it's not a 'local' craft that would dock with a carrier for interstellar travel.

      The lights on the craft could serve the same purpose as those on a airplane.

      --
      Self proclaimed typo king, and inventor of the bear destroying coffee table (patent not pending).
    2. Re:so all those people weren't crazy by freeze128 · · Score: 3, Insightful

      You assume that they can even see light in visible wavelengths. The light may just be a by-product of something else (shield generators, active sensors, etc...).

    3. Re:so all those people weren't crazy by ColdWetDog · · Score: 2

      "I saw the best lights of my generation ... "

      --
      Faster! Faster! Faster would be better!
    4. Re:so all those people weren't crazy by Lumpy · · Score: 4, Insightful

      No most of the reports were nutjobs with wild imaginations. SOME of the reports were a military prototype.

      --
      Do not look at laser with remaining good eye.
    5. Re:so all those people weren't crazy by dadelbunts · · Score: 2, Interesting

      Not always true. Most sightings dont have blinking lights. I saw something once, looked like a satellite zipping by, then stopped and started doing zig zags, figure 8s, circles, box shapes and moved in other unsatelliteish ways for about 20-30 minutes before it took off. The person i was with also saw whatever it was and watched it with me for the same amount of time. Was definately not a plane, as i have seen many many planes and am familiar with. We looked on her phone as she had a app that told us the names of all the stars and satellites, something which we used to track satellites in the past. Was not on there either. The best i could come up with was a weather balloon, but that doesnt fit with the movements of w.e this was.

    6. Re:so all those people weren't crazy by harrkev · · Score: 3, Funny

      started doing zig zags, figure 8s, circles, box shapes and moved in other unsatelliteish ways for about 20-30 minutes

      So, even aliens have problems with teenage and drunk drivers.

      Imagine you are an alien exploring Earth: "Hey, dude. Look at that Earthling. I will fly in all sorts of crazy patterns to get his attention while you lube up the anal probe. Remind me again why we are doing this? Buttholes stink."

      --
      "-1 Troll" is the apparently the same as "-1 I disagree with you."
    7. Re:so all those people weren't crazy by tomhath · · Score: 2

      Have you ever compared the original depiction to the modern reports? The ancient drawings and writings are, shall we say, subject to interpretation.

    8. Re:so all those people weren't crazy by K.+S.+Kyosuke · · Score: 4, Funny

      I understand some things are questionable, when all you see is a bright light moving in the sky, but detail accounts cant all be spoofs.

      Before the Lindisfarne monastery was attacked by Vikings in 793, the monks reported having seen a multitude of omens, among others, swarms of fiery dragons were seen in the sky. I sincerely hope these weren't real, since my country not only has no anti-UFO missiles, but no anti-dragon missiles as well.

      --
      Ezekiel 23:20
    9. Re:so all those people weren't crazy by Quiet_Desperation · · Score: 3, Funny

      Well, if they *said* they saw those things, OK then.

      since my country not only has no anti-UFO missiles, but no anti-dragon missiles as well.

      I'm in the USA. It would not surprise me greatly to find out we have anti-dragon missiles somewhere.

    10. Re:so all those people weren't crazy by Quiet_Desperation · · Score: 3, Funny

      why would aliens put flashing lights on an interstellar space craft?

      Why not?

      You saying aliens can't be pimpin their rides?

    11. Re:so all those people weren't crazy by Quiet_Desperation · · Score: 4, Funny

      Hi, I'm an alien (many of us are reading /. and even posting

      On the "B" Ark, I presume.

    12. Re:so all those people weren't crazy by mikael · · Score: 3, Funny

      what is the point of glass and flashing lights in space other than to be broken by tiny particles

      Don't you just hate it when you are doing 0.99c along an interstellar freeway and some photon is tailgating you?

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    13. Re:so all those people weren't crazy by mikael · · Score: 4, Insightful

      Sometimes people do see something, but they just didn't understand the technology at the time. There was some preacher missionary on a Pacific island who reported hearing a buzzing noise and seeing a craft that looked a glass dome on legs hovering above the tree-line, being controlled by a pilot who seemed to be sitting at a chair pushing and pulling levers. They achieved some basic communication where the preacher bowed, and the craft's pilot reciprocated. I hate to say this, but it does sound a bit like a navy helicopter.

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    14. Re:so all those people weren't crazy by mikael · · Score: 3, Informative

      I've wondered about that - the exact words were:

      AD. 793. This year came dreadful forewarnings over the land of the Northumbrians, terrifying the people most woefully: these were immense sheets of light rushing through the air, and whirlwinds, and fiery dragons flying across the firmament. These tremendous tokens were soon followed by a great famine: and not long after, on the sixth day before the ides of January in the same year, the harrowing inroads of heathen men made lamentable havoc in the church of God in Holy-island, by rapine and slaughter."

      I'm wondering whether that was an meteorite impact or weather conditions?

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    15. Re:so all those people weren't crazy by Anonymous Coward · · Score: 3, Insightful

      You looked up the stars and satellites but didn't think to film this amazing event?

    16. Re:so all those people weren't crazy by Dahamma · · Score: 2

      but detail accounts cant all be spoofs.

      Sure they can.

      Your comment reminds me of the crop circle conspiracy theorists who *still* assert they are way too complicated for humans to have created - even after a couple of drunk British farmers *showed* people how they did it. (Not to mention humans have built a building over 800m tall, an aircraft that weighs 600 tons and can fly at 600 mph, and fucking spacecrafts that have gone to the moon and Mars. Yet it's too hard to flatten wheat in a perfect circle?)

    17. Re:so all those people weren't crazy by jdray · · Score: 4, Insightful

      You assume that they can even see light in visible wavelengths.

      That's our visible wavelength, you insensitive clod.

      --
      The Spoon
      Updated 6/28/2011
    18. Re:so all those people weren't crazy by Seeteufel · · Score: 5, Interesting

      Probably taken from German Reich designs. Don't forget that thousands of US bomber pilots saw foo fighters in WWII. The archives of the German Airforce are still lost.

    19. Re:so all those people weren't crazy by na1led · · Score: 2

      There are lots of hoax are that. I'm sure 90% of them are hoax, but there are some real genuine explainable events. It's funny that people will blindly believe in religions and deities, but laugh at the possibility of other life in our universe.

      --
      -- By all means let's be open-minded, but not so open-minded that our brains drop out.
    20. Re:so all those people weren't crazy by detritus. · · Score: 4, Interesting

      I'm trying to still wrap my head around the inspirations for Renaissance paintings like The Madonna with Saint Giovannino.

    21. Re:so all those people weren't crazy by ari_j · · Score: 4, Funny

      There are a few people claiming "you assume this" or "you assume that." You're all wrong. I, a conspiracy nutter, assume that the aliens are law-abiding and did not want to violate FAA regulations.

    22. Re:so all those people weren't crazy by jedwidz · · Score: 3, Funny

      Maybe her smartphone didn't have a decent flash...

    23. Re:so all those people weren't crazy by Rufty · · Score: 2

      Ophanim? Though what inspired those???

      --
      Red to red, black to black. Switch it on, but stand well back.
    24. Re:so all those people weren't crazy by The+Wild+Norseman · · Score: 2

      I'm trying to still wrap my head around the inspirations for Renaissance paintings like The Madonna with Saint Giovannino.

      Try: http://ancientaliensdebunked.com/references-and-transcripts/ufos-in-ancient-art/

      HTH

      --
      "A government is a body of people usually -- notably -- ungoverned." -Shepherd Book
    25. Re:so all those people weren't crazy by Zeussy · · Score: 2

      On a beach? Sounds like someone was flying a stunt kite or similar. They can make incredibly aggressive turns and manoeuvres, and are basically silent. Something like this odd youtube video? or this one?

    26. Re:so all those people weren't crazy by ByOhTek · · Score: 2

      Oh. Could you produce documents of their registered flight paths?

      --
      Self proclaimed typo king, and inventor of the bear destroying coffee table (patent not pending).
    27. Re:so all those people weren't crazy by mcgrew · · Score: 2

      The Judeo-Christian bible includes a UFO in the book of Ezekial:

      And I looked, and, behold, a whirlwind came out of the north, a great cloud, and a fire infolding itself, and a brightness was about it, and out of the midst thereof as the colour of amber, out of the midst of the fire.
      Also out of the midst thereof came the likeness of four living creatures. And this was their appearance; they had the likeness of a man.
      And every one had four faces, and every one had four wings.
      And their feet were straight feet; and the sole of their feet was like the sole of a calf's foot: and they sparkled like the colour of burnished brass.
      And they had the hands of a man under their wings on their four sides; and they four had their faces and their wings.
      Their wings were joined one to another; they turned not when they went; they went every one straight forward.
      As for the likeness of their faces, they four had the face of a man, and the face of a lion, on the right side: and they four had the face of an ox on the left side; they four also had the face of an eagle.
      Thus were their faces: and their wings were stretched upward; two wings of every one were joined one to another, and two covered their bodies.
      And they went every one straight forward: whither the spirit was to go, they went; and they turned not when they went.
      As for the likeness of the living creatures, their appearance was like burning coals of fire, and like the appearance of lamps: it went up and down among the living creatures; and the fire was bright, and out of the fire went forth lightning.
      And the living creatures ran and returned as the appearance of a flash of lightning.
      Now as I beheld the living creatures, behold one wheel upon the earth by the living creatures, with his four faces.
      The appearance of the wheels and their work was like unto the colour of a beryl: and they four had one likeness: and their appearance and their work was as it were a wheel in the middle of a wheel.
      When they went, they went upon their four sides: and they turned not when they went.
      As for their rings, they were so high that they were dreadful; and their rings were full of eyes round about them four.
      And when the living creatures went, the wheels went by them: and when the living creatures were lifted up from the earth, the wheels were lifted up.
      Whithersoever the spirit was to go, they went, thither was their spirit to go; and the wheels were lifted up over against them: for the spirit of the living creature was in the wheels.
      When those went, these went; and when those stood, these stood; and when those were lifted up from the earth, the wheels were lifted up over against them: for the spirit of the living creature was in the wheels.
      And the likeness of the firmament upon the heads of the living creature was as the colour of the terrible crystal, stretched forth over their heads above.
      And under the firmament were their wings straight, the one toward the other: every one had two, which covered on this side, and every one had two, which covered on that side, their bodies.
      And whe

  2. or ... by brenddie · · Score: 4, Funny

    "The fact that there are no disc-shaped aircraft in the skies today, though, suggests that the USAF's flying saucer efforts probably never got past the prototype stage."

    or they work so good that only blurry and shaky videos exist of them flying around and terrorizing cows

    --
    The best test environment is production. - Me
    chrome://browser/content/browser.xul
    1. Re:or ... by ByOhTek · · Score: 4, Funny

      Oh, the cow thing was me. Sorry, my bad.

      --
      Self proclaimed typo king, and inventor of the bear destroying coffee table (patent not pending).
  3. Correction by cripkd · · Score: 4, Informative

    That's the Coanda Effect.

    --
    Curiously yours, crip.
    1. Re:Correction by michelcolman · · Score: 2

      Yeah, Slashdot still thinks Unicode is some fancy new fangled craze that will blow away. So the a with the funny cup on top gets stripped away.

      But what I'm wondering is: how exactly do you use the coanda effect on a spinning saucer? Things spinning around a horizontal axis, like a ping pong ball with backspin, sure, they can provide lift. But spinning around a vertical axis? How does that work? I would think you would need to use blades on the edge or maybe diagonal holes through the spinning part, but I don't see those in the picture.

    2. Re:Correction by Baloroth · · Score: 2

      Also, it's need a tail like a helicopter and for exactly the same reason.

      Or two counter-rotating discs, like a multi-rotor helicopter. Double advantage is you can rotate extremely quickly simply by slowing one of the discs a bit (assuming the humans inside don't mind).

      --
      "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
    3. Re:Correction by Sentrion · · Score: 3, Interesting

      I don't know much about the Coanda effect or the other factors that would affect flight, but I observed a craft just as you describe when I was a kid living in Australia in 1989. My father worked at the Joint Defence Facility Pine Gap. I asked him about it and of course he said he wasn't aware of any such thing. But he didn't seem to have any concern at all that I was lying or mentally ill. Lying was dealt with very strictly and I would like to think my parents would care enough about my mental health to show some concern if I was clearly delusional or describing hallucinations. Only years later as an adult have I read online how Pine Gap is the Area 51 of Australia and numerous UFOs have been sighted in the area. My father passed away earlier this year so there is no longer any risk of secrets being divulged from him.

      The craft I saw flew on a straight path like you would expect from an fixed wing aircraft or helicopter, except it was a pair of counter-rotating disks stacked vertically. The disks seemed more like ovals though, as the top disk appeared to shrink slightly in diameter while the bottom disk would increase proportionally, and this motion would alternate about once per second. The craft was a fair distance away, so I saw more of a side view and not much of a bottom view. I watched soon after it appeared crossing the horizon of a nearby mountain until it disappeared behind the horizon of another mountain, for about 40-60 seconds. But it was close enough to see clearly the counter-rotating ovals and to notice the complete absence of any sort of extended fuselage or tail assembly. Soon after seeing it I was puzzled trying to guess where the cockpit on such a craft would be located.

      Maybe in another 30 years the docs on this project might get released. I'd like to know exactly what I saw that afternoon.

  4. Unmitigated crap by fnj · · Score: 3, Informative

    Title of the article is unmitigated crap. The Avrocar, which was actually built, was a miserable failure which could barely lift off the ground, wallowing dangerously, with very poor control. It was abandoned as absolutely useless.

    Yes, some blue sky dreamer in defense probably did dream up the mach 3 flying saucer, but it was never any closer to reality than any comic book or lurid magazine article.

    1. Re:Unmitigated crap by Baloroth · · Score: 4, Interesting

      They thought the same about flying wing designs in the 1950s. Indeed, they never did get the design to work right at the time. Turns out, the US Air Force did, eventually.

      While the saucer design is a challenge to make work, I'm sure if the Air Force saw some great advantage in it, they would have built it. I'm not sure what the advantage of such a craft would be, though, besides VTOL capability being standard.

      --
      "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
    2. Re:Unmitigated crap by Anonymous Coward · · Score: 5, Informative

      > They thought the same about flying wing designs in the 1950s. Indeed, they never did get the design to work right at the time.

      Flying wings have been successfully built and flown since the 1930s. The problems with the B-35 and B-49 were inherent in the platform:

      * Conic Instability - in a banked turn the outer wing goes faster than the inner one and gives more lift with increases the bank angle until it flips over and spins. I have seen film of a B-52 doing that.

      * Nodding - The Northrops were designed for bombing and later for photo work. The wing 'nods' due to lack of pitch stability which makes it impossible to aim using a bomb sight, and difficult to get the photos to overlap correctly.

      * Slewing - with no tail the wing does not care whether it is aligned with the flight path or skewed from it by several degrees. Bomb aiming is thus impossible.

      The planes were actually very successful as flying machines (though the propeller gearboxes failed too often), but useless for the missions they were intended for. The B-2 fixed all those issues with computers compensating for the instabilities.

  5. Who are they kidding declassified LOL by sunyjim · · Score: 2, Informative

    Worst secret ever, I've seen this 'saucer' before, it's been in books and magazines since the 60s I even saw the video of them trying to hover it, which didn't work very well. This thing never worked properly and never made it past the initial design phase. http://en.wikipedia.org/wiki/Avro_Canada_VZ-9_Avrocar http://books.google.ca/books?id=Apaa01aJLIcC&pg=PA26&lpg=PA26&dq=Avrocar&source=bl&ots=Qe24u-CGlp&sig=R44-T1xDEeQGMbUkX8YcVU33Q7A&hl=en&sa=X&ei=nwtzULChIIfFyAG76ICwDA&ved=0CFUQ6AEwCA#v=onepage&q=Avrocar&f=false

    1. Re:Who are they kidding declassified LOL by Sarten-X · · Score: 3, Informative

      I know this is Slashdot, but you really should try reading TFA. The Avrocar was a separate project:

      It’s worth noting that Avro Canada also worked on the VZ-9 Avrocar, though — which is basically the same as Project 1794, but a lot smaller.

      It's okay... I know you had to hurry to get that ninth post...

      --
      You do not have a moral or legal right to do absolutely anything you want.
  6. Note to self: by slazzy · · Score: 4, Funny

    Invest in buying more shares in tin foil companies.

    --
    Website Just Down For Me? Find out
  7. Re:Didn't Get past prototype by DeTech · · Score: 5, Funny

    Excuse me sir you seemed to be confused on what the words prove, fact, no, and/or sky means.

  8. So how did this interact with pop culture? by metrometro · · Score: 3, Insightful

    The 1950s were saucer crazy. And apparently the US government was too, at about the same time. So was this leakage from inside the weapons program showing up in Hollywood or were the engineers looking at Ed Wood movies and saying, "Yeah, let's give that a shot"?

    1950: http://en.wikipedia.org/wiki/The_Flying_Saucer
    1956: crazy USAF saucer design
    1959: http://en.wikipedia.org/wiki/Plan_9_from_Outer_Space

    1. Re:So how did this interact with pop culture? by Gilmoure · · Score: 2

      Shhh! And don't call me Shirley.

      --
      I drank what? -- Socrates
  9. this is a cover up!!! by cod3r_ · · Score: 2

    Obviously they are saying "yah it was us not aliens." NOTHING TO SEE HERE PEOPLE!!!! Obviously there are aliens and obviously they've caught them and have then trapped somewhere in new mexico. And obviously the alien army is on its way to earth to rescue it's POWs. Shit just got real.

  10. The fact that... by swb · · Score: 4, Interesting

    "The fact that there are no disc-shaped aircraft in the skies today, though, suggests that the USAF's flying saucer efforts probably never got past the prototype stage."

    Or more likely, the fact that it was a huge success led the military to slap top secret over it and any aircraft maker selected to work on it was told of "permanent, irrevocable loss of DoD contracts", "lifetime bans on employment and security clearance", "intrusive FBI investigations and tax audits", "nationalization of defense critical assets" and "extremely likely criminal charges for treason, sedition or aiding the enemy tried in military courts with punishments handed out by military intelligence.."

  11. Re: only blurry and shaky videos exist by drainbramage · · Score: 5, Informative

    Everyone in saucer design knows that the Coanda Effect also causes the outline to appear blurry and shaky.
    It is the first step towards cloaking which was later perfected using techniques developed by Tesla.

    --
    No brain, no pain.
  12. Re:It all sounds vaguely familar... by Frosty+Piss · · Score: 2

    the b2 has advantages over other designs. what is the advantage of a flying saucer compared to wing based aircraft? at least on earth

    The primary thing that made the B-2 doable over previous flying wings is the microprocessor and the ability of modern computers to stabilize the aircraft in flight. The computers make constant changes to the control surfaces that would overwhelm human pilots.

    --
    If you want news from today, you have to come back tomorrow.
  13. Re:Didn't Get past prototype by Dupple · · Score: 3, Interesting

    The British Rail (a railway company!) flying saucer has been public knowledge for years.

    http://en.wikipedia.org/wiki/British_Rail_flying_saucer

    Of course, it never flew, as far as we know...

    --
    Watch those corners
  14. Project "1794" sounds awfully damned familiar by Anonymous Coward · · Score: 5, Funny

    ...as in re-arrange those digits and you get 1947, the year of the famous Roswell New Mexico UFO crash.

    Coincidence?

  15. Re:It all sounds vaguely familar... by Baloroth · · Score: 3, Insightful

    Helicopters are usually extremely loud and, most importantly, simply unable to fly faster than 300mph or so: any faster and the supersonic shockwaves from the rotors tips (keep in mind those are traveling at helicopter speed + rotational velocity) destroys it's ability to fly. This could go much, much faster, as fast as you want, and probably be a fair bit more maneuverable.

    .

    --
    "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
  16. Project 1794?? by Antipater · · Score: 5, Informative
    Oh my god.

    Do you people realize the significance of this? If this Project 1794 was the saucer that crashed 27 miles outside Roswell and was taken to Area 51...1794/(51+27)=

    THE NUMBER TWENTY-THREE!!

    --
    Everything is better with chainsaws.
    1. Re:Project 1794?? by Nimey · · Score: 3, Funny

      Ewige Blumenkraft!

      --
      Hail Eris, full of mischief...

      E pluribus sanguinem
  17. Re:Didn't Get past prototype by Anonymous Coward · · Score: 4, Insightful

    Sorry, but if you are using inductive reasoning, there is no difference between proving a negative and proving a positive. The only thing that allows you to make a reasonable conclusion in those cases is statistics. For example: the if the Higgs boson was believed to be observed with a 5 sigma certainty, you can't prove absolutely that its apparent existence wasn't due to random interactions. Conversely, if it wasn't observed with a 5 sigma certainty, you can't prove absolutely that its apparent nonexistence wasn't due to random interactions. Only a belief in statistics will resolve this inherent problem with inductive reasoning.

    Since we use inductive reasoning in the real world, saying that you can't prove a negative has no meaning if you don't provide context. Intelligent Design and Russel's Teapot are unlikely, but not impossible. Statistics allows us to throw these ideas in the trash. The fact that UFOs aren't identified often is another item that we can use to dismiss the existence of flying saucers still being flown by the USAF. The certainty isn't nearly as high as something like Russel's Teapot, but it isn't something to be ignored either.

  18. Re:It all sounds vaguely familar... by osu-neko · · Score: 2

    Helicopters are usually extremely loud and, most importantly, simply unable to fly faster than 300mph or so: any faster and the supersonic shockwaves from the rotors tips (keep in mind those are traveling at helicopter speed + rotational velocity) destroys it's ability to fly.

    Only the rotors on the side of the helicopter moving in the direction of travel are going aircraft speed + rotational velocity. An equally serious problem is the rotors on the other side are going aircraft speed - rotational velocity. The faster the chopper flies, the more imbalanced it becomes as the lift from one side increases while on the other side it decreases. If the chopper reached the speed of its own blades, it would lose all lift on one side as the blades would be essentially motionless on one side.

    --
    "Convictions are more dangerous enemies of truth than lies."
  19. Re:It all sounds vaguely familar... by Lumpy · · Score: 4, Funny

    " what is the advantage of a flying saucer compared to wing based aircraft? at least on earth"

    To completely screw with the enemy.

    Broadcast loudly "ACK! ACKACK!" from loudspeakers while you only use lime green lighting.

    --
    Do not look at laser with remaining good eye.
  20. It's a proposed follow-on to the failed Avrocar by Animats · · Score: 2

    This project is from Avro (A.V. Roe, a respected Canadian aircraft manufacturer in the 1950s) and is clearly a follow-on to the Avrocar. The Avrocar, of course, really was a flying saucer. But it could barely fly.

    The Avrocar was an interesting idea, but presented control problems that couldn't be solved in the 1950s. Like all thrust-based VTOL craft, it was unstable. It turned out to be really unstable at the transition from ground effect to thrust lift. Getting it out of ground effect without crashing was very hard. Forward motion made the stability problem worse. Despite several redesigns, it remained unflyable.

    A design like that probably could be made to work today, with computers, gyros, and control jets fighting to keep the thing stable. Toy-sized quadrotors are widely available now, and they have many of the same stability problems. It's not clear there's any advantage to a disc shape other than coolness, though.

    Bear in mind why this was built. Nobody knew what a supersonic aircraft needed to look like, so lots of things were tried. The opposite extreme from the Avrocar was the X-3 Stilleto, probably the pointiest-nose aircraft ever built. It flew, but couldn't go supersonic. Flying wings were tried - they had stability problems not solveable with 1950s technology. Finally, it was figured out that swept-back wings could be made to behave at both subsonic and supersonic speeds, and that became the standard form for supersonic aircraft.

    1. Re:It's a proposed follow-on to the failed Avrocar by adnoid · · Score: 2

      As a pilot myself, after first looking at the Figure 1 I was alarmed at the thought of the pilot sitting in the center of a large combustion gas turbine. I was relieved to see that the designers put some protective buffers filled with fuel between the pilot and the inner annulus of the compressor. What could possibly go wrong?

      --
      No sig
  21. Re:makes me wonder... by Baloroth · · Score: 2

    No, but it is an important one, if you want to get on-target quickly. The point of the SR-71 was it could get much higher detail than a satellite more reliably and very quickly. Turns out that wasn't as important as the cost (and new missile system made it a bit less practical). There are still plenty of reasons to develop high-speed aircraft, from surveillance to first strike ability, which is why they are doing so, right now, with the X-51.

    --
    "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
  22. Re:It all sounds vaguely familar... by Baloroth · · Score: 2

    That is another issue, although that problem can largely be solved by using a co-axial rotor system, so it isn't an insurmountable problem.

    --
    "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
  23. No flying saucer for you! by jvkjvk · · Score: 3, Insightful

    "The fact that there are no disc-shaped aircraft in the skies today, though, suggests that the USAF's flying saucer efforts probably never got past the prototype stage."

    Not so! It in fact suggests that the Greys filed a cease-and-desist suit with the Galactic Court to stop humans from producing a craft in that shape. They won, and *that* was when the Americans really sat up and started taking notice of Patents.

    Other galactic species are talking behind their back, though, because the Greys sued with a design patent based on "rounded corners" for a flying saucer...

  24. Re:Didn't Get past prototype by Will.Woodhull · · Score: 5, Interesting

    Another possibility is that the Air Force never intended to develop a saucer prototype. It could be that these "designs" were disinformation left where Soviet agents could discover them.

    The timing is right for this being part of the effort to divert attention from the Air Force's super-secret Blackbird program. The Blackbird became operational in the 1960s and development began in the latter part of the 1950s. By the 1970s, after some 15 years of service, the Soviet Union was apparently aware that the USA had something that could go really high, really fast, and take lots of photos, but apparently they still had no clue about the design. That suggests that the Air Force had done a really good job of hiding the production of lots of titanium parts, etc-- capitalizing on the UFO craziness of the times would have been an excellent ploy.

    And it is clear that releasing some of the documents used in disinformation strategems is part of the declassification process. However I do not believe there is anything that requires the US Government to say what was disinformation and what was factual. I rather think that they would leave that as an exercise for the reader.

    Does anyone know the more recent history of the Blackbird? IIRC, the program was terminated around 1998, then there was talk about reactivating them for a time when we got into the Bush wars, and that's the last I remember hearing about it. Are any of these planes still flying?

    --
    Will
  25. Link in previous message may contain hostile code by Animats · · Score: 2

    The link mentioned above, to "http://4domfay.mrslove.com/", is to a multi-frame document which tries to load "http://www.etehadiyeamlak.ir/components/com_media/helpers/media/www/index.php", which tries to download a plug-in. Although the domain is in the Iranian ccTLD, it's actually hosted by "webhostbox.net".

  26. Difficulties identifying flying objects by mosb1000 · · Score: 5, Insightful

    People's brains are not especially good at identifying objects above the horizon. We typically determine the size and distance of distant objects with visual cues because our stereoscopic vision is limited to close range. For example, we are able to determine the distance of a person because we know (generally) how big a person is. If there's something next to him, we can then know it's size (by comparing it's apparent size to the apparent size of the person) and distance (it's about the same distance as the person). But in the absence of these visual cues, we are unable to determine the size and distance (as well as a host of related factors such as velocity and acceleration) of objects. Moreover, even the color of objects is determined by visual cues, since we color correct images to account for differences in lighting.

    This leads to a lot of difficulty in identifying objects in the sky. Since flying objects are not arranged in a plane, we can't use their position in relation to the horizon to approximate their distance. Nevertheless, we often do. The moon seems to be much larger when it's near the horizon because we assume objects near the horizon are much farther away (the moon also appears larger due to atmospheric distortion, but this effect is minor).

  27. Re:Alien Reverse Engineering? by Sentrion · · Score: 3, Informative

    More likely an attempt to reverse engineer experimental craft or designs for such captured by the allies near the end of WWII. Long range guided missiles, line-of-site remote controlled bombs, helicopter gunships, CCTV, the assault rifle, jet fighters and the Uranium used in the Hiroshima and Nagasaki bombs were all conceived, designed, built and with the exception of nuclear weapons, deployed by the Germans. This technology and the scientists who ended up on the western half of the iron curtain were employed to develop America's nuclear deterrent of ICBMs and the space program.

    If Japan had not attacked Pearl Harbor and if Hitler had not attacked Russia, Germany would probably still occupy most of Europe and would have placed a NAZI flag on the moon in 1959.