Thanks for posting that, Steve. Always had a bit of interest in those jiggers, never even seen one in the flesh, but worked with a few Kiwi's who had a bit to do with them. Apparently quite a few made it to EnZed, Euclid a popular name over there.
Just going back to the photos in the link, and reading the notes, were certainly a big jigger for their day. Looking at the exhaust stacks it would appear that each track housed an entirely independant engine, trans, radiator etc. says that they could be broken in half for transportation. The engines look like they were set up in what was known as a " handed pair", which was quite common an arrangement for naval craft as well as one of the army tank versions. Have seen photos where they were set up as "mirror" engines, i.e. the exhaust manifolds were placed together on the inside as in the dozer case, and the supercharger/ inlet manifolds on the outside. Well known that most of those straight screamers could have bits swapped side to side and even added on end to end. At the time they were being built, says that they were the biggest, heaviest dozer available. Wouldn't have been long before Cat's D9 and Allis's HD41's took the mantle. Still, an interesting concept in their day.
Just as a bit of an aside to the Euclid/Terex dozers, they also made a "cab forward" dozer, rear engined but conventional setup except the operator sat virtually over the blade. Also, Cletrac and also Eimco ( a company that specialised in mining equipment) had the same cab forward designs. One of the Sydney metro councils had an Eimco dozer on garbage duty, landfill reclamation but recall them having trouble with the track gear, used to get clogged up easily and tended to want to walk out of their "boots".
From memory TOMM did an article on the Euclid some time back, most interesting story. Beofre I left sydney to live up here the company I worked for used to do the tyres and wheels for the Eimco equipment which was specialised under ground earthmoving gear. The mine grader was a little ripper, you almost layed back to operate it as they were designed for 1 metre ceilings in seam mining of coal. Same for the front end loaders but recently watched a video where they are now remote controlled from a safe position well away from the coal face.
Cheers Cobba & Cobbarette
Coopernook, The Centre of our Universe.
Dave, they explain it in there. Each side is independent so the engines are not siamesed.
Have worked with a couple of version of twin pack six's, believe one of the styles were ex tank engines. You could also get a quad setup.
which I believe were Marine units.