The Allis-Chalmers HD-19 revisited
Allis-Chalmers led the charge for a bigger, higher horsepower track type tractor following World War Two. The resulting model HD-19 was a breakthrough in many...
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The S-12 scraper revisited
Intended as a larger version of the Euclid S-7 which had proved to be extremely popular, the Euclid S-12 never really fulfilled its obvious potential....
LeTourneau’s Model C Tournatractor
Always the innovative thinker when it came to earthmoving equipment, Robert LeTourneau came up with the idea of the Tournatractor in 1946. By RICHARD CAMPBELL...
LeTourneau’s Model D Tournapull
The Le Tourneau-Westinghouse D Tournapull was one innovative machine, says Richard Campbell. Descended from the original Le Tourneau ‘D’ Pull which dated back to 1946 and...
The Allis-Chalmers HD-19 tractor
Allis-Chalmers was the first heavy machinery builder to enter the big track-type tractor development race immediately following World War II. Richard Campbell looks at its...
The Allis-Chalmers HD-41 tractor
Having led the charge for larger, higher horsepower tractors following WWII, Allis-Chalmers once again was at the forefront of large tractor development when the model...
The Allis-Chalmers HD-21 tractor
Developed directly from its model HD-20 (introduced 1951), the HD-21 featured among other things, one of the diesel engines from the recently acquired Buda Engine...