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 - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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