The HT-340 (for Hydrostatic Turbine), a product of Internationals experimental group, was never intended to go into production and didnt. International began working on development of a hydrostatic drive tractor in the 1950s. When a 340 prototype tested well, the engineers cranked up the volume, installing a small gas turbine engine from the companys Solar Aircraft Co. subsidiary (which was named not, apparently, for an energy source but for the sunny skies in San Diego, where the company was founded in 1927).
The HT-340 made its debut on the show circuit in July 1961. But on the return trip from Lincoln, Neb., where it was displayed at the University of Nebraskas 10th annual Tractor Day, the tractor was extensively damaged in a traffic accident. Emergency repairs were made and the 340 was displayed at several events that summer.
Later that year, more extensive repairs and modifications were completed. The retrofitted prototype was unveiled in 1962 as the HT-341, complete with three-point hitch, stabilized steering, larger tires, rear lights, enhanced controls, a new fuel-filtering system and a new color scheme.
The 340 was blue and white; the 341 was red and white. The 341 was used in displays and demonstrations. In 1967, it was donated to the Smithsonian Institution in Washington, D.C.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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