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Thread: Any rumours/news on D12?

  1. #31
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    Missing in In-action

    Hi, Folks.
    Sign in the paymaster's office at 122 mile camp on the Mount Newman Iron Ore Rail Project, Western Australia, 1968:

    "If you haven't heard a good rumour by 10 o'clock, START one."

    I know nothing of cars - they don't interest me as I have bigger fish to be interested in.

    Northart, Swishy did not find that swamp thingummyjig. The clipping was originally emailed to me by a contact in France who has an abiding interest in jungle crushers and he wanted more information, which I was not able to supply. It was reportedly built for clearing work on the long-abandoned Cross-Florida Canal in the late 1950's. I have been told - unconfirmed - that a Fort Lauderdale outfit named Gregg, Gibson and Gregg may have been involved. A bloke who claimed to have worked there as an apprentice reckoned that the older guys used to ocasionally talk about such a beast but he never saw any visual evidence of it.

    A contact in Texas once said that a freind of his claimed to have come across some HUGE track pads in a Florida scrap yard. He reckoned his informant claimed that these track pads were 10 feet across, which would match the information in that clipping. That is all I have ever been able to uncover. I have sent out quite a few feelers to different places, almost all fo which have remained un-answered to this day.

    I would very much appreciate any further information on this jigger.
    You have a wonderful day.
    Best wishes.
    Deas Plant.

  2. #32
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    Quote Originally Posted by Deas Plant View Post
    Hi, Folks.
    Sign in the paymaster's office at 122 mile camp on the Mount Newman Iron Ore Rail Project, Western Australia, 1968:

    "If you haven't heard a good rumour by 10 o'clock, START one."

    I know nothing of cars - they don't interest me as I have bigger fish to be interested in.
    Just a little good natured ribbing Deas, I wondered where you have been on this discussion?

  3. #33
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    Nanna naps.

    Hi, Roddyo.
    Us vintage folks sometimes need our nanna naps. 'Sides, I do have a life away from HEF too, surprising as that may seem. LOL.
    You have a wonderful day.
    Best wishes.
    Deas Plant.

  4. #34
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    Who are you guy's to say a D12 Dozer isnt been Developed?

    I Dont think they need to produce a bigger machine, D11 Dozers sell by the ship load and it's not gonna end anytime soon.

    Talk about the electric drive truck's a few year ago would have been laughed out of the forum!

    Hey Northart: Nice picture.

  5. #35
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    Talk?

    Hi, Haul-Pak.
    Even more notably, talk of a Cat diesel-electric dozer would have been greeted with gales of laughter 12 months ago. Not now. Mind you, IMHO the video that they released at the time WAS a bit of a joke.

    I personally have NO idea what Cat may have on the drawing board since they have, in their 'limited wisdom', chosen to not take me into their confidence. How-wevver, the only dozer bigger than the D11 currently on the market appears to have shown itself to be a bit of a 'fizzer' with dead ones lying all over the place and D11 sales beating it every which way. Maybe there is a market for a bigger dozer in jobs like mine reclamation which is likely to become an even bigger task in the future.

    Maybe I'm a trifle myopic but I can't see a lot of application for a bigger dozer in most contracting/civil engineering situations simply because of the difficulty of moving them, unless somebody can come up with DURABLE form of modular dis-assembly and re-assembly to make the task easier and quicker.

    There ARE road-registerable floats currently available that WILL carry up to 250-300 tons but even they would be expensive to use in moving a dozer of say 150-170 tons. What's more, most road authorities, at least DownUnder, tend to frown on using these rigs to transport loads in one piece which could have been broken down into lighter loads. Party poopers. I KNOW the 'gear-jammers' would love to be able to brag that they had shifted a 170-ton dozer somewhere.

    Just my 0.02.
    You have a wonderful day.
    Best wishes.
    Deas Plant.

  6. #36
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    Crawler crusher

    Hello Deas Plant,

    Hhmmnn, well if I made a mistake on the photo credit ,it's my fault, I stand corrected.
    I have another of the same with Swishy's logo.

    This is all I have.

    Another colorful local passed away a few yrs ago, claimed to have invented a dozer, with the engine inside the track. Maybe he had something to do with this. He was nearing the end, and was not coherent many times, I suspect to medications. I tried my best to get a clear story, but all was a fog.
    Attached Images Attached Images  

  7. #37
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    Swishy's continuing piracy.

    Hi, Northart.
    I suspect that our photo-phiddling phriend may have pirated those photos from the Florida state archives pages as I have seen them there in connection with the Cross-Florida Canal. The one shown in Swishy's phiddled photos is a smaller version and appears in several places in those archives. I would guess its weight to be around 50 - 60 tons, maybe.

    The one in the clipping, I have not been able to find anywhere, especially not in those archives. The caption with the clipping gives its weight as 300 tons.

    It's always sad when an old-timer who may have interesting information 'loses the plot' and can no longer communicate properly. We all have to go sometime but I think I'd like to keep most of my marbles until the end. Then again, that might depend on who is around pestering me too. Do you know any of the close friends and associates of the dead man who may have a clue or two about the gadget of which he spoke?

    Catchyalater.
    You have a wonderful day.
    Best wishes.
    Deas Plant.

  8. #38
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    Past sources

    Hello Deas Plant,

    No , he was a WW2 veteran, and his associates of the younger days are most elsewhere or gone.

    I did glean that he had something to do with the Stretch D8-14A's . He spoke in great detail about the military using them, in Greenland.

    There are some here in Alaska somewhere. I seen them years ago , myself. Never even thought about taking a picture back them days.

    Still looking. The computer age and internet sure has provoked lotsa interest in people like myself, in learning about the history of such.

  9. #39
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    Computer age.

    Hi, Northart.
    I too know a LOT more now than I would have without computers and the internet. What's more, I have been able to share that knowledge and my experience with people up to half a world away whom I may NEVER meet face to face. There are some minuses about the internet, like the spread of child pornography and such like, but I think the plusses FAR outweigh those minuses.

    There's no way I could have collected or shared my library of vinatge machinery photos without the 'net either.

    Catchyalater.
    You have a wonderful day.
    Best wishes.
    Deas Plant.

  10. #40
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    Internet

    Hi Deas Plant,

    Just Delete that "NEVER" and change it to "HOPE" .

    Like my Dentist said , peoples finances drive their decisions.

    Meantime sure is a pleasure to communicate with this modern technology.

    My Grandparents thought to recieve a letter with a 3 week old PostMark was just terrific.

    Anyway back to modern visions of a BIGGER Caterpillar Dozer . The Moment will come , via technology. Caterpillar has the idea, Modular components .

    Like the crane people, strip down into the least moveable parts for legal shipments.

    Whats the limits ?? Imagination and the market place.

  11. #41
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    So, back to the subject. Will the D12 have conventional oval track design or be a high drive? Will it have the electric drive like the new D7E?

  12. #42
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    Greg,

    I would imagine if Cat has a D12 in the werkz, it will more then likely be a high sprocket due to the beating the sprocket and drive connection take when a simple oval track, and then also to that extent, it aids those who maintains the operation of the machine, easily accessable to work on with the high track. So, I don't see the D12 if made, being a oval track type dozer.
    Last edited by Cat-385BL; 12-01-2008 at 12:07 AM.

  13. #43
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    The new D7E is oval. The high tracks have never impressed me much. The ovals worked well for years. Rumor mill says back to oval to.

  14. #44
    Senior Member alco's Avatar
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    Yes and no on the oval drive. On smaller machines, oval makes more sense...less expensive to manufacture, not as much of an advantage performance wise, etc. On larger tractors, elevated sprocket works out better. Cat has gone back to oval track for the smaller machines, but said they are sticking with the elevated sprocket on the larger,,,I think D8 and bigger, but I don't remember for sure.

    Brian
    Throwin' dirt at truckers all day long.

  15. #45
    Senior Member biggixxerjim's Avatar
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    Im pretty sure that D7E is a high drive.... they have that new D6K with the oval track that is supposed to be a JD 700 fighter. On a machine such as a high production finish dozer like these two, it makes sence to use an oval track.... most of the reasons being lower center of gravity and lighter overall weight of the machine.

    But get into some heavy cuts or rough ground.... the high track will shine. My last company had a D5M PAT N/G with a brand new Cat undercarriage on it, and it ate up rock and shale. Just as long as nothing was too big......

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