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Engineer equipment

Discussion in 'Allied Military vehicles used during WWII' started by WWIIstev50, Jan 6, 2019.

  1. WWIIstev50

    WWIIstev50 New Member

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    Does anyone know the size of crawler tractors listed in Engineer T/O & Es as crawler tractor 30-50; 50-70; 70-90; or 96?
     
  2. lwd

    lwd Ace

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    As a guess the numbers may refer to weight classes.
    Is it consistent with:
    Caterpillar in World War Two
    I see from a serial number plate at that site that a D6 had a shiping weight of just under 24,000 lbs so not sure my guess is correct.
    Some more pictures with possibly useful captions at:
    Military Dozers – Dedicated to the men and women of the Army Corps of Engineers, Seabees, and the other construction units of the Armed Services
    Looking at:
    Classic Caterpillar Crawlers
    Perhaps the numbers have something to do with horsepower (drawbar and/or belt).
     
  3. WWIIstev50

    WWIIstev50 New Member

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    Thank you. I had the information on the D-4, D-7, etc. And I was guessing, as you suggested, that the 30-50 was the D-4 and the 50-70 was a D-7, and the 70-90 was a D-8. I was not sure what the -96 was. I hope someone can confirm our suspicions.
     
  4. lwd

    lwd Ace

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    Can you match the numbers up with the ones from the Engineering Battalion TOE I quoted? That might resolve it.
     
  5. OpanaPointer

    OpanaPointer I Point at Opana Staff Member Patron   WW2|ORG Editor

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  6. Poppy

    Poppy grasshopper Patron  

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    mmm- bread crumbs
     
  7. OpanaPointer

    OpanaPointer I Point at Opana Staff Member Patron   WW2|ORG Editor

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    "Not all who wander are lost."
     
  8. Takao

    Takao Ace

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    The manuals I've seen usually specify like 35 DBHP(draw bar horsepower).
     

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