Replacing the previous model HD-15 in the Allis-Chalmers line of track type tractors the HD-16 was introduced with much fanfare in 1955. By Richard Campbell...
Developed from the successful Euclid L-30 and 72-40, the Terex 72-51 was introduced in 1966 (originally as the Euclid 72-51). By Richard Campbell Euclid had...
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...