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Zeppelin Flies Again

rakerman writes "The Globe and Mail reports Japanese firm buys first new-look Zeppelin. "Makers of the revived Zeppelin airship delivered their first helium-filled craft to a commercial user Saturday, a Japanese company that plans to use the 12-seat craft for sightseeing trips and advertising." They call themselves Zeppelin-NT, or as the Germans say "Zeppelin Luftschifftechnik GmbH"."

86 of 317 comments (clear)

  1. Oh the humanity! by Anonymous Coward · · Score: 5, Funny

    This is a terrible day! What a tragedy! Oh, my God! Those poor people!

    1. Re:Oh the humanity! by Microlith · · Score: 5, Insightful

      Thankfully, this time the outer surface isn't coated in ROCKET FUEL with a nice HYDROGEN supply beneath.

    2. Re:Oh the humanity! by cayenne8 · · Score: 5, Funny
      Damn, when I first read the headline, I thought they finally were going to hae a Led Zeppelin reunion concert tour.....

      Oh well........

      :-(

      --
      Light travels faster than sound. This is why some people appear bright until you hear them speak.........
    3. Re:Oh the humanity! by Paulrothrock · · Score: 4, Funny
      The japanese must have some technology to bring Bonham back from the dead!

      (There's a really great classical work called "Bonham" that all LZ fans should check out.)

      --
      I'm in the hole of the broadband donut.
    4. Re:Oh the humanity! by karait · · Score: 5, Funny

      Zeppelin-NT A product composed of TWO items famous for crashes!

    5. Re:Oh the humanity! by flyneye · · Score: 2, Funny

      Lets try Nitrous Oxide this time.
      You wont need to fill the compartment,just the passengers.
      Should float nicely.

      --
      *Repent!Quit Your Job!Slack Off!The World Ends Tomorrow and You May Die!
    6. Re:Oh the humanity! by flyneye · · Score: 2, Funny

      Depends on if it is Zeppelin NT3.x ,Zeppelin NT4 or Zeppelin 2000 professional and whether patches have been applied.

      --
      *Repent!Quit Your Job!Slack Off!The World Ends Tomorrow and You May Die!
    7. Re:Oh the humanity! by APDent · · Score: 2, Funny

      That's OK. When I first read Zeppelin Luftschifftechnik GmbH, I thought it had something to do with lutefisk. I don't think lutefisk can fly. At least I hope not. The idea of helium-filled, lye-soaked, dried cod flying about isn't one I relish.

    8. Re:Oh the humanity! by einhverfr · · Score: 2, Interesting

      Would YOU fly in an airship product named NT? If only they had chosen a better name! But, I beat you to it by a few years (that was my first comment when I heard about the project back in 2000).

      Actually I have been following the Zeppelin NT for a few years and have wanted to take the Lake Constance tours which have been offered for at least the last 2 years.

      The Zeppelin is actually quite interesting, being very slightly heavier than air so that it coast down without any power. I hope someday to ride in one of them.

      --

      LedgerSMB: Open source Accounting/ERP
    9. Re:Oh the humanity! by gujo-odori · · Score: 3, Funny

      There's no way I'd fly in it. With a name like that, it can't go more than a few days without crashing. Plus, any time the pilot changed any control, you'd have to land and take off again, so even if it didn't crash, it would take forever to get anywhere.

    10. Re:Oh the humanity! by Foxwell · · Score: 2, Informative

      Nope, the skin was not "rocket fuel," if it were it would not have burned from stern to bow in less than a minute, it could not self-ignite nor is there reason to think it played a role in igniting the hydrogen either.

      Hindenburg burned because of the hydrogen, the paint did not even contribute much to the conflagration. How else could there be surviving pieces of the skin for revisionists to stage self-defeating, embarrassing demonstrations for cameras with?

      http://spot.colorado.edu/~dziadeck/zf/LZ129fire. ht m

      Check it out. There are a thousand holes in the paint theory and related arguments (eg that hydrogen airships were perfectly safe) and this one nails four of them, each sufficient to put the false claims to rest.

  2. It is over me currently by Anonymous Coward · · Score: 5, Interesting

    Zeppelin NT came to Istanbul for a private BMW meeting I guess. Thing looks damn cool and huge :)

  3. Old news... by ArbiterOne · · Score: 4, Informative

    The Zeppelin NT has been around for at least 10 years! I've seen photos of it in Popular Science, Discover, et al.

    1. Re:Old news... by BeeRockxs · · Score: 2, Insightful

      It may be around for at least 10 years, but this is the first time they actually sold one.

    2. Re:Old news... by tunabomber · · Score: 2, Interesting

      On top of that, I looked at their website and it appears that the new blimps they're selling aren't even Zeppelins: they aren't rigid airships and they aren't filled with hydrogen.

      I was hoping that somebody had gotten over the bad rap that hydrogen got after the Hindenburg accident, considering it really was the highly flammable skin of the Hindenburg that ignited.
      If they used hydrogen, the blimp would be able to carry more than just 12 people.

      If I wanted a soft, helium-filled airship that could only hold ten passengers, I could have just gotten one of these.

      --

      pi = 3.141592653589793helpimtrappedinauniversefactory71 ...
  4. Zep2k by Anonymous Coward · · Score: 5, Funny

    They should upgrade to Zep 2000 (based on NT technology.)

  5. 12 Passengers? by slusich · · Score: 4, Insightful

    Sounds like those are going to have to be some very pricey tickets. They'd have to be with only 12 passengers for each flight.

    1. Re:12 Passengers? by maxbang · · Score: 2, Funny

      *Smugly hurls slusich through zeppelin window.*

      No ticket.

      --
      I also reply below your current threshold.
    2. Re:12 Passengers? by markball · · Score: 3, Interesting

      I was in Friedrichshafen last year. (also visited the Zeppelin museum. Pretty cool.) We watched the Zepplins fly back and forth over the Bodensee with tourists.

      I seem to recall that it was 200-300 euros for a few hours aloft. The flight attendents would take a vote asking the passengers which direction over the lake they wanted to fly.

  6. Article has errors by BeeRockxs · · Score: 5, Interesting

    " The new craft designed by Germany's Zeppelin Luftschifftechnik -- named Zeppelin NT for "New Technology" -- is filled with helium rather than the intensely flammable hydrogen that fuelled the earlier generation of airships. " The earlier generation of airships was also designed to be filled with Helium, not Hydrogen. Short supply forced them to use Hydrogen.

    1. Re:Article has errors by nelsonal · · Score: 3, Informative

      From what I've heard the short supply was due to export restrictions on Helium (a strategic material) exports to Germany. Also, as it seems I was the last /.er to learn last time, the Hindenburg was caused by the doping material which was rocket fuel (and photo's of the time exaggerated the look of the explosion). Presumably, the new technology includes a new doping material.

      --
      Degaussing scares the bad magnetism out of the monitor and fills it with good karma.
    2. Re:Article has errors by hanssprudel · · Score: 4, Insightful

      Also, as it seems I was the last /.er to learn last time, the Hindenburg was caused by the doping material which was rocket fuel (and photo's of the time exaggerated the look of the explosion).

      The thing is though, you are never actually the last person here to learn something. In fact, I think one needs to formulate some sort of law that no matter how many times something is pointed out, only a minority of the people here will know it, and one of them will get a +5 for explaining it next time.

      Thus every X-Prize story has to have somebody explain that to actually orbit the earth, it isn't enough to get above the atmosphere, you also need a shitload of speed to keep you from falling straight down. And every story about airships, starting from God knows when, has to contain somebody explaining that it wasn't the hydrogen that ignited on the Hindeberg. You are welcome to your +5...

  7. Full of hot air by Sefert · · Score: 2, Funny

    I'm not sure naming it Zeppelin NT is such a wise move. Would you get on an aircraft with a namesake that's prone to crash? Oh, the humanity!

  8. Mirror by swordboy · · Score: 4, Informative

    Mirror here. This would seem like a no-brainer for the editors. But they couldn't care less, it seems.

    --

    Life is the leading cause of death in America.
  9. Comment by Anonymous Coward · · Score: 5, Funny

    You lost a great opportunity to be quiet. Don't let those pass you again.

    Sincerely,
    Mr Blinky

  10. old news? by najt · · Score: 2, Informative

    Maybe I got something wrong but,

    "Today, the Zeppelins have returned. In 1997, the Zepplin Luftschifftechnik built a new airship -- the LZ NT. The ship is certified. Commercial passenger flights began 15 August 2001."

    http://spot.colorado.edu/~dziadeck/zf/introducti on .htm

  11. Zeppelin NT? by The+Ultimate+Fartkno · · Score: 3, Funny


    Does that mean BSOD = Blimp Screen of Death?

    (and as long as I have you here...)

    I know a Zeppelin has to have a Captain, but will it have a Kernel as well?

    ba-dum-DUM!

    Thanks, I'll be here all week. Try the veal!

  12. It's about time by Jesrad · · Score: 5, Interesting

    Ever since the Hindenburg accident the technology has been nearly dead, just as if we had stopped building ships after the Titanic sank.

    --
    Maybe we deserve this world ?
    1. Re:It's about time by banzai51 · · Score: 4, Insightful

      Plus there was this thing called the airplane that came along and did all the same things that blimps did, but better.

    2. Re:It's about time by Waffle+Iron · · Score: 5, Informative
      The Hindenberg accident was just the most memorable. However, most of the major dirigibles of the era were destroyed in mishaps. A lot of them got twisted to bits in thunderstorms; flying in those storm magnets was kind of like hanging out in a floating trailer park.

      The most famous exception to this, the Graf Zeppelin, was memorable mainly because it was able to operate so long without being lost in an accident.

      The Hindenburg was really just the last straw. Not to mention that even in the 1930s airplanes could transport a similar number of passengers faster, with fewer crew, and without needing a vessel comparable in size to the Titanic.

    3. Re:It's about time by mabhatter654 · · Score: 2, Informative
      Off the cuff, 1/3 the length is only about 1/27 the volume...and volume it the important thing. Also, they are using Helium which doesn't have quite the lifting power. Oh, and they want this to be SAFE by 2004 standards! It's just a start anyway. They gotta get money from somewhere to justify building bigger ships. Actually, given today's materials they could probably build one bigger with more cargo capacity than the largest zepplins of the golden age.

      If they could demonstrate good saftey and decent operating costs they could start to displace airplanes. After all, airplanes are all about moving lots of people in a hurry...not really very FUN anymore. In the US the train system in in disarray and many people are tired of the rush of the airlines...it doesn't make much of a vacation to fly...note how many people elect to take boat cruises. Also, the newer model of airships are much safer for the public! They're not loaded up with tens of thousands of gallons of jet fuel, they don't go very fast, and if they do loose power they're harder to crash and do a lot of damage to anything solid. Add to that the fact that they won't require huge airstrips to take off and land so they can visit many existing small airports that normal airlines would never think to service!

  13. Touting the Canadian Horn here by WormholeFiend · · Score: 5, Interesting

    Check out www.21stcenturyairships.com

    This guy made spherical airships despite everyone telling him it would never work.

    Personally, I find this much more interesting than the Zeppelin "comeback".

    1. Re:Touting the Canadian Horn here by Rudisaurus · · Score: 2, Interesting

      How about a clickable link?

      another Canuck

      --
      licet differant, aequabitur
  14. I've seen it... by OmniGeek · · Score: 4, Interesting

    I've seen it fly out of Friedricshafen, Germany, and I even managed to buy a plastic model kit for it (made by Revell, curiously) in a hobby shop in Friedrichshafen. It's a neat looking machine, and I hope the firm succeeds in doing interesting things with them. There's certainly room for zeppelins in the world of aviation.

    BTW, I also visited the Zeppelin Museum in Friedrichshafen; they have a 1:1 mockup of the boarding gangway, some passenger cabins and a dining area from the Hindenburg. That was an awesome experience, and I recommend it if you ever go to the Bodensee region of Germany.

    --

    "My strength is as the strength of ten men, for I am wired to the eyeballs on espresso."
  15. damn you slashdot... by wwest4 · · Score: 3, Funny

    I though maybe John Bonham (deceased Zeppelin drummer) had been cloned or something.

  16. Re:MOD PARENT UP by The+Ultimate+Fartkno · · Score: 4, Funny


    Considering that the Hindenburg itself was *literally* flamebait, perhaps the mod was going all uber-meta and using the flamebait mod as a subtle show of recognition.

    Then again, maybe the mod's just a dumbass.

  17. Hopefully these come to the US! by Anonymous Coward · · Score: 3, Interesting

    These would be excellent (and much safer) for small regional transportation instead of the puddle jumpers and small jets that exist now. Since the US is never going to adopt high speed rail this looks like a good alternative.

    1. Re:Hopefully these come to the US! by stevesliva · · Score: 2, Interesting

      Safety? I'd much rather be in a turboprop during a thunderstorm than a rigid-frame airship. The US Navy's fleet of airships (Macon, Akron, Shenandoah) had a number of problems that involved squalls, crashing, and death. I don't know that there is a solution other than stringently avoiding gusty winds.

      --
      Who do you get to be an expert to tell you something's not obvious? The least insightful person you can find? -J Roberts
  18. Flying near Frankfurt.... by hughk · · Score: 3, Informative

    The Zeppelin NT was flying near Frankfurt in Germany last year using a base in a field on the edge of a small town called Bad Homburg situated about 15Km outside Frankfurt. They ran short tours around the centre of the city. Being rather larger than the average blimp it is impressive to watch and relatively slow and quiet compared to conventional aircraft.

    --
    See my journal, I write things there
  19. Advertising? by Guppy06 · · Score: 5, Funny

    "a Japanese company that plans to use the 12-seat craft for (...) advertising."

    If they put light-emitting diodes on the sides for an electronic billboard, would that make it a LED Zeppelin?

  20. Uh... no. by tunabomber · · Score: 4, Informative

    From their website:

    Fare per Person: EUR 335,00 Monday to Friday; EUR 370,00 on weekends and holidays.
    Please visit www.zeppelinflug.de for booking.

    --

    pi = 3.141592653589793helpimtrappedinauniversefactory71 ...
    1. Re:Uh... no. by emtboy9 · · Score: 4, Informative

      You put the coma in the wrong place.

      33,500 and 37,000

      stupid.


      Uh... No. You put the comma in the wrong place. Take a look at the currency selections in Word or Open Office sometime. You will find that not everone in the world uses "." to denote cents or percentages of units of monetary measure. Europeans tend to use "," where Americans and other countries use ".".

      stupid. ;)

      --
      "Our funds have never taken part in toxic or death spiral convertible financings of any sort" -BayStar's managing partne
  21. Re:Pronunciation by Hiro+Antagonist · · Score: 4, Informative

    GmbH is the German equivalent of, 'Inc'. or 'Ltd.'

    It's short for 'Gesellschaft mit Beschränkter Haftung' (Corporation with Limited Liability).

    Das ist alle für heute. Viel Spass.

    --

    --
    I Hit the Karma Cap, and All I Got Was This Lousy .sig.
  22. Zeppelin NT ? by p4ul13 · · Score: 4, Funny
    From the article: We named it "ZeppelinNT because we want people to know that it will be patched regularly to keep it from crashing".

    Personally I'll never understand marketing folks. =)

    --
    Paul Lenhart writes words!
  23. bah! by kin_korn_karn · · Score: 2, Funny

    that'll go over like a lead.. uh, um, nevermind

  24. NOT A BLIMP! by Anonymous Coward · · Score: 5, Informative
    it's a blimp people, it just has a different name - whoop de do

    Actually, it isn't a blimp, it's a proper Zeppelin. The difference? A Zeppelin has a rigid frame, a blimp does not.

    Did you know that the US Navy built a few Zeppelin Aircraft Carriers in the 1930s? That's right - Zeppelins that could carry, launch and recover fighter aircraft. Fighteres were carried in a compartment in the body of the airship and were launched and recovered from a "trapeze". Link with pictures.

    Zeppelins are cool. I wish they'd become more widely adopted. Stoopid Hindenburg painted with Stoopid rocket fuel...

  25. Iron oxide, cellulose acetate, and aluminum powder by dogfart · · Score: 4, Informative
    was used for the doping material.

    "the total mixture might well serve as a respectable rocket propellant"

    The direction and color of the flame supports this theory. Hydrogen burns with a colorless flame and would burn upwards (being lighter than air). The actual flame burned downwards and looked like a "fireworks display".

    See: http://engineer.ea.ucla.edu/releases/blimp.htm

    --

    "dope will get you through times of no money better than money will get you through times of no dope"

  26. GmbH by Anonymous Coward · · Score: 2, Informative

    It's short for Gesellschaft mit beschränkter Haftung. (association with limited liabilty).
    That's a quite common form for buisiness in Germany. The limited liabilty means the
    owners are only liable with everything in the company and only little with private money).

    It's pronounced Ge Em Be Ha.
    (where a is pronounced between but and car,
    the e a bit like in yelow.)

  27. Re:Two Questions by SpinyManiac · · Score: 2, Informative

    No, Cargolifter went bust.

    Zeppelin have been making heavy construction equipment for years.

    --
    It's never too late to have a happy childhood.
  28. It doesn't cost as much to run as a helicopter by Moderation+abuser · · Score: 3, Informative

    The engines are flat 4 piston engines rather than turbines which reduces servicing costs and it doesn't have to burn fuel to sit stationary in the air. The Zeppelin is also designed specifically to require a minimal ground crew.

    At the moment, the development costs still have to be paid and pilots earn a bundle because there aren't very many certified but in the long term the running costs should be lower than a helicopter with a similar carrying capacity. The thing cost around $9 million including ground infrastructure items like mast and refuelling vehicle.

    --
    Government of the people, by corporate executives, for corporate profits.
  29. NT? by Saeed+al-Sahaf · · Score: 2, Interesting
    The new craft designed by Germany's Zeppelin Luftschifftechnik -- named Zeppelin NT for "New Technology" -- is filled with helium...

    I wonder what Microsoft will have to say about this...

    --
    "Who are in control, they are not in control of anything - they don't even control themselves!" - Glen Beck
    1. Re:NT? by cmacb · · Score: 5, Funny

      I think Microsoft has a solid claim for prior art on vapor technology.

  30. Life imitating art... by petepac · · Score: 2, Funny

    ...advertising air ships just like in Blade Runner. Bio-manufactured organs are comming next.

    --
    >> Practice Safe Hex
  31. Other German Zeppelin Startup.. by matt4077 · · Score: 3, Interesting

    There was another German Zeppelin Startup called the Cargolifter. Their business plan sounded a lot more exiting. They were going to develop a Zeppelin for Heavy Duty lifting, like bringing Turbine Parts to remote areas in India. Basically all the stuff thats too big for normal trucks.

    Unfortunately, the managers were rather low on some vital brain functions and they had a few hundred engineers working on rather useless side-projects before their burn rate caught up with their Venture Capital

    They did, however, built the biggest self-supported manufacturing hall worldwide. Some Japanese investors are planting a rainforest in it now.

    1. Re:Other German Zeppelin Startup.. by Lispy · · Score: 2, Interesting

      wich is beeing transformed into some kind of crazy tropical themepark as I write this. Wich will, no doubt, go down like the Hindeburg. ;-)

    2. Re:Other German Zeppelin Startup.. by hughk · · Score: 2, Interesting
      Actually, I know a little about Cargolifter. The company had two parts, one ran the finance and was based in Frankfurt whilst the other did the manufacturing and was based in Brand (business development grants in the former DDR). They had a lot of private investors.

      They were running slow, that was true, but as far back as 2000 they had plans for profit by 2005 but they needed more capital. Their own investors were a bit tired of the delays and 9/11 effectively put the dampeners on any other capital.

      The collapse of Cargolifter brought to light some decidedly interesting practices inside the company which suggested that the investor's money didn't go to the right place. Whether incompetence or fraud, I have no idea.

      --
      See my journal, I write things there
  32. Helium Supply by lcars1701z · · Score: 5, Interesting

    Even though it's the second most abundant element in the universe after hydrogen, helium is fairly scarce on earth. The majority that we get comes from extraction from natural gas. Ambient air extraction is not economically feasible due to the low concentration (1 part per 200,000). I've heard that demand will outstrip supply by 2010 and the $19.95 Party Balloon kits at Costco will be a bit more costly. What is the future of lighter-than air transport with the "lighter" part being costly in the near future?

    1. Re:Helium Supply by stud9920 · · Score: 2, Interesting

      By then, nuclear fusion should be in production, we will produce our own helium.

  33. Re:Why still use gas? by Xenkar · · Score: 2, Interesting

    I'm sure the weight of the structure we'd need to contain the vacuum would far exceed the air it would displace. Maybe it could be possible with some radical design made out of carbon fibre, but for today it isn't practical.

  34. Re:Why still use gas? by Nf1nk · · Score: 4, Informative

    Two big reasons.
    first using a gas gives you a tension structure. Tension structures are easy to build light wieght and strong. Using vacume gives you a compression structure and compression structures are much harder to build light.
    second Vacum isn't that much lighter than helium.
    follow me on this. At STP (standard temperature and pressure) air has a weight of about 26g/mole while helium has a weight of about 4g/mole blimps run low pressure so this is about right. 1 mole is about 23 L of gas. so for 23L of heium I get 22g of lift for the same amount of vacume I get 26g of lift. So by using helium instead of vacume you only lose about 15% of te lifting capacity, but you greatly simplify construction and maintainance.

    --
    I used to have a cool sig, back when I cared
  35. Re:Blimp, hardly a Zeppelin by Moderation+abuser · · Score: 2, Informative

    The Zeppelin NT has a rigid spine, the cells are arranged round about the spine. It isn't a blimp.

    --
    Government of the people, by corporate executives, for corporate profits.
  36. Re:Iron oxide, cellulose acetate, and aluminum pow by Rorschach1 · · Score: 2, Funny

    Iron oxide and powdered aluminum? Holy crap, there's some brilliant engineering for you.

    "Hmmm... this hydrogen-filled airship is flammable... but couldn't we make it MORE flammable?"

    "I know! Let's dope it with thermite!"

  37. Re:Pronunciation by ArsSineArtificio · · Score: 2, Informative
    In America this would be "LLC".

    --
    All employees must wash hands before seeking equitable relief.
  38. Poorly Written Article by Zobeid · · Score: 2, Interesting

    For example, consider this sentence. . .

    Quote: The new craft designed by Germany's Zeppelin Luftschifftechnik -- named Zeppelin NT for "New Technology" -- is filled with helium rather than the intensely flammable hydrogen that fuelled the earlier generation of airships.

    1. Flammable is a non-word. (Re: The Elements of Style) The word they were grasping for is "inflammable".

    2. Airships were never "fueled" by hydrogen or helium. It provides buoyant lift, it's not burned for energy.

    3. The first generation of Zeppelins were made to use helium, not hydrogen. The Germans only switched to hydrogen after the USA embargoed them and cut off their supply of helium.

    Furthermore, it irritates me that nobody can mention airships without harking back to the Hindenberg. It's as if every news story about a large oceangoing ship was compelled to recap the Titanic disaster.

    1. Re:Poorly Written Article by mindstrm · · Score: 2, Informative

      modern english recognizes "Flammable" as a word meaning the same thing as "inflammable". Pick any modern dictionary, you'll find it. I suppose crusty old english professors might shun it, and say it's not a word.. but let's face it, english evolves.

      Flammable is actually preferred, as many people mistake the "in" for the negative latin prefix, when it is not. Using "Flammable" removes this ambiguity.

      Every airship story goes back to the hindenberg because that's all most people know of airships. The airship age basically ended.

    2. Re:Poorly Written Article by fnj · · Score: 2, Informative

      Bzzzzt. Thank you for playing.

      1. Wrong. Flammable is a perfectly good word. Inflammable is a redundant and misleading word, since it means flammable, but looks like it means non-flammable.
      2. Correct.
      3. Wrong, wrong, wrong. No Zeppelin until the 1990s used helium. When the first Zeppelin flew in 1900, there was not enough helium in the world to come close to putting a visible bubble in even one of its 17 gas cells. In 1915, by which time dozens of Zeppelins had flown, a single cubic foot cost $2500, and the cost to fill a single Zeppelin, even if enough were available in the entire world (which was not nearly the case by orders of magnitude), would have been more than the gross national product of Germany for the year.

      1 out of 3.

      By the way, couldn't agree more with your concluding remark.

    3. Re:Poorly Written Article by Phrogman · · Score: 2, Informative

      Your third point would seem to be directly in conflict with an article on the US Zepplin the Macon from 1933.



      http://www.lucidcafe.com/library/macon.html



      While it may have been expensive to gather that much helium, it doesn't seem to have stopped the US Navy - they had 2 of these ships (the other was called the Akron) - and they could even launch aircraft from them.

      There was a game that came out a year or two ago along these lines - obviously this is the inspiration for the game's central theme of aircraft launched from a Dirigible/Zepplin type aircraft. Interesting to see that it had some basis at least...

      --
      "The first time I got drunk, I got married. The second time I bought a chimpanzee, after that I stayed sober" Arian Seid
  39. A Zeppelin, not a Blimp by beq · · Score: 5, Informative
    From the company's website:
    The rigid framework weighs about a tonne and provides great stability. It comprises triangular carbon-fibre frames and three aluminium longerons braced by aramide cables. All the main components of the airship such as cabin, empennage and engines are mounted on this rigid structure. This arrangement ensures that the airship retains optimum manoeuvrability even with a loss of envelope pressure

    Looks like a Zeppelin to me.
    --
    -Brendan
  40. Yuppers by SnappingTurtle · · Score: 2, Funny

    Me too. Very disappointed that it just turned out to be about a big balloon.

    --
    I've found that my posts don't format quite right w/o a sig.
    1. Re:Yuppers by RichardX · · Score: 2, Insightful

      The difference between a zeppelin and a blimp is that a zeppelin has a rigid hull, and a blimp doesn't

      --
      Curiosity was framed. Ignorance killed the cat.
    2. Re:Yuppers by Foxwell · · Score: 3, Funny

      The NT has ribs--3 longitudinal ribs made of aluminum, spaced by triangular transverse frames made of composites. It is classified as a "semirigid," meaning that the frame helps keep the overall shape and distributes the lift, but the lift gas has to be pressurized to put tension on the skin, which contains the gas and also serves as the aerodynamic surface, as in blimps.

      Blimps are nonrigid or pressure ships--all of their structure results from pressurizing the lift gas by means of air ballonets inside them. They have no rigid members.

      The alternative is a rigid frame and stiff external skin; this approach frees you of the need to pressurize the lift gas. Generally this means a complex structure like the classic Zeppelins--but that structure was often, even taken altogether with its numerous parts of gas cells, netting, frame members, wiring, and outer skin, lighter per unit of lift volume than blimps, even the best modern blimps.

      The big drawback of pressure ships, including semirigids, is that if you lose pressure for any reason you lose structure. On a semirigid it is not quite as bad, especially on the NT with its three ribs which pretty much would maintain the basic shape, but you'd lose skin tension hence get a lot more draggy. On a blimp loss of pressure is a disaster. Also, pressure ships are hard to partition so any big leak or rip will tend to spill _all_ the lift gas, whereas on the rigids the gas was kept in numerous separate cells and total deflation of one or several might still leave the ship airborne--I know of several instances of that.

      The semirigid form does allow you to distribute weights all along the length of the ship which is important, and the NT version also allows elements like the props to be moved up along the width of the hull, kind of like what was possible on the old rigids. What is most "new" about the New Technology Zeppelin is its vectored thrust system. Modern blimps have used pairs of vectored props (though attached to the gondola, their only rigid element, rather than up along the hull sides which is clearly better) but the NT adds an arrangement on the tail tip that greatly increases the control available; this is possible because of the ribs.

      Still a number of us wish they'd gone ahead and made a modern rigid while they were at it; such a ship would have enabled all this, freed them of pressurization issues, and given the crew access to the entire interior so if an engine gave trouble in mid-air someone could go and try to fix it. Happened all the time on the rigids! Fortunately modern engines are more reliable, but a major issue of the NT is that you need special equipment to get at the engines, mounted up high as they are, for maintenance, it restricts their operations.

      I also think a modern rigid would have been as light or lighter, and very possibly cheaper to make and maintain. All they'd need to do to make the NT a rigid would be to devise some kind of very light aerodynamic shell to replace the skin, and then design some gas cells--just basically balloons-to fit inside the spaces betweent the frames. Well actually the frames are braced with wires so either the cells would have to contain those or else the structure would have to be redesigned to avoid running the wires there.

  41. Re:Zeppelin XP by HermanZA · · Score: 3, Funny

    Optimized for Internet Exploder...
    Badabim, badaBOOM...

  42. using up the planet's supply of helium? by pomakis · · Score: 4, Interesting
    Helium is a very useful substance to use for this sort of thing, but I think we have to be careful how much of it we waste. Let me explain. Helium is a fairly rare element on the planet. Up until sometime in the 1940s or thereabouts, it was thought that helium was pretty much nonexistant on the planet. It doesn't exist in the atmosphere because any helium that's floating around in the atmosphere eventually leaks out into space because it's so light. Also, it can't be part of any heavier molecule because it's an inert gas. Any helium that escapes into the air will eventually leak out into space and be lost forever. I believe that this property is unique to helium. Anyways, it was eventually discovered that helium is trapped in certain kinds of sand, and so the helium-mining industry was founded. I guess there's a lot of it, but unlike every other element in existance, once helium is leaked, it's gone from the planet forever. Sure, we're depleting the planet of a lot of things, such as fossil fuels, etc., but at least the individual atoms of these substances stick around, so we still have the fundamental building blocks for these things, etc. But once the helium is gone, it's gone! There's no way we can make more short of building nuclear fusion plants to build new helium atoms from hydrogen. Yet I've never seen this matter even briefly discussed anywhere. Am I missing something, or is this actually going to be a problem in the future? I can't help but think that in a couple of hundred years, we'll be smacking ourselves in the head for wasting all of the planet's precious helium on children's balloons, etc.

    1. Re:using up the planet's supply of helium? by fnj · · Score: 3, Interesting

      Are there many industrial processes that use Helium that can't use something else besides making us talk funny?

      Ignoring the "many" part, which seems pointless ... let's see ...
      1) Supercooling, as in superconductivity. Nothing else will allow cooling as near to absolute zero.
      2) Breathing mixture for very deep diving.
      3) Lifting balloons and airships without extreme peril from fire.

      Do you really need more examples of irreplaceability? I'd say a single significant example is enough.

      That said, there's no difference whether we extract the helium, or leave it mixed in, when we extract all the natural gas in the planet and burn it up (as we are feverishly doing). Either way, the helium is gone. Might as well use it for something if the natural gas is to be expended anyway.

    2. Re:using up the planet's supply of helium? by Foxwell · · Score: 2, Interesting

      No you can't! Forget vacuum, it is too difficult to make it work. If you have materials that can keep vacuum _out_ you can much more easily keep gas in--if the material is that strong maybe it would be safe to keep hydrogen in it.

      Or you can use steam for lift gas.

      www.flyingkettle.com

      Or if you have a supply of helium (painfully extracted from the atmosphere for instance, given enough work you can do it) I have a trick to _conserve_ the helium that would stretch its usefulness to the point where slow extraction of replacement gas from the atmosphere would keep up with the reduced rate of loss. The original version involved a thin layer of steam outside the helium, another involves a thin layer of hydrogen--there is risk of fire but limited risk if the layer is thin enough.

      Any of this is preferable to trying to hold vacuum out of a volume. I suppose it could be done someday with a light enough container to leave some lift, but whatever wonder material you might be using can be put to more efficient uses.

      Aerogels come up a lot in this context for instance. Well, besides being very light they are also great insulators--so instead of trying to keep a vacuum inside the gel you heat up the air a whole lot inside, and most of it goes out, leaving almost a vacuum--very hot air. Which is easy to keep hot because the aerogel does not conduct heat well, and it is easy to make this structure light because it does not have to bear the terribly strong compression forces a vacuum would leave the hull to bear.

      There will always be a better way than vacuum. which strikes me as damn unstable anyway--any leak you get, you lose lift _fast_! Might as well contemplate a photon gas--that might work if you had a perfect reflector, but one pinhole and your pressure gas is out at 3E8 meters per second...

    3. Re:using up the planet's supply of helium? by The+Conductor · · Score: 2, Interesting

      Well, there's steam like you mention. And just plain hot air (surface area to volume ratio improves with scale, so insulating the lifting gas gets easier for large airships). Ammonia is cheap and wieghs about half as much as air (giving it lift about half that of H2 or He, & comparable to steam). It is gaseous over a wider range of temperature & pressure, not particulary flammable but somewhat toxic in pure form; venting lifting gas could be hazardous at low altitudes so instead it may be necessary to squirt water into the gas envelope and take advantage of ammonia's high solubility. Hydrogen burns only in the presence of oxygen of course, so a double envelope consisting of a hydrogen-filled bag inside, say, a nitrogen/ammonia/neon-filled bag mitigates flammability hazards. Neon gas is lighter than air & may be a subsititute, albeit poorer performing, not only for lifting gas, but also for cryogenics & saturation diving as mentioned a few posts up.

      Airhips' key appeal is that they can fly without much energy use; flight is their natural state. Volume goes by the cube of linear dimension so the concept lends itself to very large scale implementations. But that large scale has been their downfall; the more large and efficient they are, the more vulnerable they are to weather. If airships are to make a comeback, someone needs to solve the problems of weather survivability. Vectored thrust has helped considerably, as have modern weather prediction methods. Another approach is fly in the stratosphere...no weather up there.

  43. Re:Iron oxide, cellulose acetate, and aluminum pow by Anonymous Coward · · Score: 2, Insightful

    Hydrogen would have burned almost instantaneously. There was nothing keeping the hydrogen under pressure, so there would be no explosion -- just the bags popping off one at a time. If the gas bags and outer skin were both fireproof, I suspect the Hindenburg would have crash-landed with most people surviving even if the hydrogen burned.

  44. Re:While the use of LTA aircraft... by Jim+McCoy · · Score: 2, Interesting

    There is not freighter in use today that could not run rings around a LTA craft. In addition to being faster, the freighter can haul more cargo and it can do so through weather that will turn your LTA aircraft into a twisted lump of plastic and carbon fiber sitting on the bottom of the ocean. The amount of volume needed to turn any of these things into a "heavy lift" vehicle also makes them pretty much useless for that task.

    Compared to ships there is almost nothing an LTA aircraft can do that a ship cannnot do better, safer, and cheaper. Compared to other aircraft there are only a few things that an LTA can do that a HTA can't; the big advantages of LTA aircraft are loiter time and almost silent operation. The only real use cases for these things are as high-altitude communication relays, long-loiter reconnaisance, and sightseeing.

  45. Re:Led Zeppelin by cayenne8 · · Score: 2, Interesting
    "But perhaps they should just let it alone, so there are no "reunion tours" that distill the myth and wonder of what a great band they were...unlike other older bands."

    I hear ya. Even though I'd pay whatever they were charging to go see them....I know it couldn't possibly live up to the legendary performances of their heyday.

    I often think, while watching the latest Led Zeppelin DVD set of their concert days and watching Bonzo beat the living hell out of the drums, Robert singing his ass off, Jonesy playing all types of things,and Jimmy smoking on guitar...I think "Wow...THIS is what a rock and roll band is supposed to be.....

    I HOPE that some younger kids today get ahold and watch this and get some inspiration that I frankly think is lost in today's music. You don't need 2 tons of electronic trickery that fixes bad vocals and bad instrument performances.........IF the group is even playing for real and not lip sync'ing.

    I miss seeing people playing the guitar at a million notes a minute....mixing in great riffs.....dancing around the stage and putting on a performace, that was based less on special effects and light shows, than musicianship and performance skills

    Pink Floyd being the exception to this...great show backed up by fantastic music and performances...but, not much movement...hahaha.

    --
    Light travels faster than sound. This is why some people appear bright until you hear them speak.........
  46. I guess it was just... by Art+Tatum · · Score: 4, Funny

    A communication breakdown.

  47. He was refering to the "NT" part by gad_zuki! · · Score: 3, Funny

    Pilot: "Ah, look how nice and blue the sky is up here!"

    Co-Pilot: "Actually we're still in clouds. That's a blue screen."

    Pilot: "Hold me."

  48. Thermite. by Ungrounded+Lightning · · Score: 2, Informative

    Iron oxide, cellulose acetate, and aluminum powder was used for the doping material.

    "the total mixture might well serve as a respectable rocket propellant"


    Lots of energy but not much outgassing - and that mostly from the cellulose acetate binder. Rotten rocket fuel. But a GREAT source of heat and hot particles.

    Iron oxide and aluminum, once you finally get it lit (which is hard), burns to aluminum oxide and quite pure white-hot molten iron.

    It has been used for such things as welding railroad rails (and by pranksters for welding trolley cars TO the rails while they're stopped to load/unload passengers). And of course for starting fires in a war setting.

    Burning a thermite coating on a hydrogen-filled zepplin, in addition to removing the skin, would result in drops of molten iron falling THROUGH the internal structure, rupturing the gas bags, heating/weakening the structural members, and generally insuring that everything flammible was on fire in extremely short order.

    But you've seen the film.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  49. Be Careful. by Zilfondel2 · · Score: 2, Funny

    Back when I was a kid right before World War 2, I was riding on a Zeppelin when this strange guard was checking tickets. One of the passengers didn't have one, so he tossed him out the window.

  50. Strategic material. by Ungrounded+Lightning · · Score: 2, Interesting

    Even though it's the second most abundant element in the universe after hydrogen, helium is fairly scarce on earth. The majority that we get comes from extraction from natural gas.

    And (at one point) from a set of wells in texas that produced nearly pure Helium. Helium concentration varies from deposit to deposit.

    In the period between WW I and WW II, essentially the only sources of bulk helium were wells in the US south, plus a little in Russia. Due to its usefulness in barrage balloons during WW I, the US considered the supply a strategic weapons material and monopolized the US supply (under the administration of the Navy, which was also in charge of the US Zepplin program).

    The US would not allow Germany to have any - which is why the Zepplins were hydrogen-filled. (Indeed, that policy was STILL in force during the '60s, which was the last time I looked. I think it got relaxed in the last decade or two.)

    After the Hindenberg's flameoff was blamed on Hydrogen, with Helium unavailable, nobody was interested in paying for a flight in a Zepplin when there were perfectly good steamships.

    So the industry went down, not JUST from the misattribution of the problem to Hydrogen, but ALSO to the US government's refusal to release Hydrogen for commercial air flight - even to US operators.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  51. Re:Sorry to "deflate" everyone's enthusiasm but... by Auton · · Score: 2, Interesting

    If the dirigible is made with multiple self-sealing gas cells filled with helium, it is not at all very susceptible to anything short of major explosives, such as surface-to-air missiles. An RPG-7 (such as was used to take down two UH-60 helicopters in Mogadishu back in those recent troubles) might also make a dent and deflate a single cell, slowly - but the remaining cells should be enough to ensure at least a slow descent. If, however the terrorists shoot up a significant number of gas cellls, yes, that will possibly be a problem. The factors will be getting a high enough rate of deflation to actually make it drop at a significant rate, a rate high enough to cause damage.

    At any rate, a dirigible is much less vulnerable to attack than, say, a pasenger airplane.

  52. Re:Old news...is sometimes false by Foxwell · · Score: 2, Informative

    You are referring to Addison Bain's misleading claims.

    He is quite wrong about the skin in many different ways. It could not generate sparks in the ways he claimed, and if such sparks were applied to it they would not ignite it, and if someone did set the skin on fire it would not burn nearly as fast or energetically as he claimed, not by orders of magnitude. He compares the mix to "rocket fuel" but first of all this is false, it lacks the right components in the right proportions to burn as a rocket fuel. Actually solid fuel rocket fuel does not burn at the rapid rates he assumes either. But anyway the skin was not a uniform mix of all the chemical components (which he gets wrong) it was a layered composite, with the various chemicals separated.

    Bain himself made a hash of his claims that the skin self-ignited and then burn furiously, so vigorously as to eclipse the heat of hydrogen combustion, when he took a piece of Hindenburg's own skin and tried to set it afire for cameras. He used an arc torch, making no attempt to demonstrate that static discharges alone could do the job, and even so it burnt very weakly.

    Bain's real agenda is to prove that hydrogen is reasonably safe to use, mainly because he works with liquid hydrogen as a fuel. It is a bit silly to try to prove LH2 safe by claiming hydrogen was never at fault in the numerous cases of hydrogen-filled airships that went up in flames, since a huge bag of gaseous hydrogen separated from air by thin membranes is very different from a tank of cryogenic liquid inside thick insulation. Anyway lots of hydrogen airships of all types, using lots of different types of skin, burned spectacularly generally with great cost of lives and sometimes property damage. Some helium-filled airships have indeed burnt, but not easily and never with the kind of rapid chain reaction evident in the Hindenburg fire. Clearly most of the energy that consumed the ship in just seconds came from burning hydrogen; the bright visible light that Bain tries to claim proves it was some other materials (pure hydrogen flame is in UV and invisible to the human eye) comes from that hot fire setting the other materials afire and superheating them, just as the mantle on a gas lantern transforms the pale blue flame of propane into bright redder light.

    It is quite true that the old Zeppeliners did their best to minimize the dangers of hydrogen and generally carried it off. It is false that helium is so much worse than hydrogen that using it spelled doom for airships. What spelled doom for airships IMHO was the determined opposition of many interests that preferred to develop airplanes and helicopters and regarded the market as too limited to support both HTA and LTA. Hydrogen fires, and the cost and limited supply of helium, were good excuses to divert development funds away from airships.

    But it is ridiculous to suggest that the NT could carry a lot more pax if it used hydrogen! Maybe 3 or 4 more, at risk of their lives--a hydrogen _pressure ship_ is much more risky than a hydrogen rigid, which is bad enough.

    A bigger airship could be made using helium that would work just fine. The second-largest rigids were made in the USA and were wonderful ships, the USS Akron and Macon.